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HOMESERVICE MANUALSAUDI2013Q7 PREMIUM, 3.0L ENG VIN MREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMS3.0L - GENERIC SCAN TOOL - ENGINE CODE: CATAST GENERIC SCAN TOOLDIAGNOSIS AND TESTINGENGINE DTC TABLESENGINE CONTROL MODULE
2013 Audi Q7 Premium, 3.0L Eng VIN M

Engine Control Module

2013 Audi Q7 Premium, 3.0L Eng VIN MSECTION Engine Control Module
DTC Error Message Diagnostic Procedure Malfunction Criteria and Threshold Value Secondary Parameters with Enable Conditions Monitoring Time Length Frequency of checks, MIL Illum
P0016 Crankshaft Position - Camshaft Position Correlation Bank 1 Bank 2 -- Check the Camshaft Position Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
  • adaptivie value > 139° CA
 engine speed > 700 RPM 0.5 s
  • Continuous
  • 2 DCY
P0018 Crankshaft Position - Camshaft Position Correlation Bank 1 Bank 2 -- Check the Camshaft Position Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
  • adaptivie value < 75° CA
 engine speed > 700 RPM 0.5 s
  • Continuous
  • 2 DCY
P0030 HO2S Heater Control Circuit Bank 1 Sensor -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING . Heater current < 8 to 40 mA
  • duty cycle 0.4 to 99.6%
  • heater commanded on
 5.2 s
  • Continuous
  • 2 DCY
P0031 HO2S Heater Control Circuit Low Bank 1 Sensor 1 -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING . Heater voltage < 1.9 to 2.22 V
  • duty cycle 99.6%
  • heater commanded off
 5.2 s
  • Continuous
  • 2 DCY
P0032 HO2S Heater Control Circuit High Bank 1 Sensor 1 -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING . Heater current > 8 to 11 A
  • duty cycle > 4%
  • heater commanded on
 5.2 s
  • Continuous
  • 2 DCY
P0045 Turbocharger Boost Control Solenoid "A" Circuit Open -- Check the Turbocharger Control Module -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING . open circuit
  • diagnostic signal from power stage > 0.8 (Out1) V
short to ground
  • and < 2 (Out2) V
 power stage = OFF state 600 ms
  • Continuous
  • 2 DCY
P0047 Turbocharger Boost Control Solenoid "A" Circuit Low -- Check the Turbocharger Control Module -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING . short to ground
  • power stage current>8 to 18 A
 power stage = ON State 480 ms
  • Continuous
  • 2 DCY
P0048 Turbocharger Boost Control Solenoid "A" Circuit High -- Check the Turbocharger Control Module -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING . short to battery
  • power stage current> 8 to 18 A
 power stage = ON State 480 ms
  • Continuous
  • 2 DCY
P0050 HO2S Heater Control Circuit Bank 2 Sensor 1 -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING . Heater current < 8 to 40 mA
  • duty cycle 0.4 to 99.6%
  • heater commanded on
 5.2 s
  • Continuous
  • 2 DCY
P0051 HO2S Heater Control Circuit Low Bank 2 Sensor 1 -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING . Heater voltage < 1.9 to 2.22 V
  • duty cycle 99.6%
  • heater commanded off
 5.2 s
  • Continuous
  • 2 DCY
P0052 HO2S Heater Control Circuit High Bank 2 Sensor 1 -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING . Heater current > 8 to 11 A
  • duty cycle > 4%
  • heater commanded on
 5.2 s
  • Continuous
  • 2 DCY
P0068 MAP/MAF - Throttle Position Correlation -- Check the Mass Air Flow (MAF) Sensor -G70-. Refer to Mass Air Flow Sensor -G70-, CHECKING .
  • deviation throttle controller < 43 or > 43%
  • pressure quotient < 0.53
  • engine speed 600 to 6000 RPM
  • time after engine start > 70 s
  • fuel cut-off not active
  • throttle position >4.5%
  • fuel trim activity -15 to 15%
 5 s
  • Continuous
  • 2 DCY
P0070 ambient air temp sensor short to B+ Refer to the Repair Manual for Instrument Cluster/Sensor diagnosis. ambient air temp <45.0 °C CAN active 2 s
  • multiple
  • 2 DCY
P0071 AAT T1 Ambient Air Temperature Refer to the Repair Manual for Instrument Cluster/Sensor diagnosis.
  • Temperature difference to ECT, ECT 2, >40K
  • Temperature difference to T2', FTS >45K
   2 s
  • Continuous
  • 2 DCY
P0072 ambient air temp sensor short to ground Refer to the Repair Manual for Instrument Cluster/Sensor diagnosis. signal range check low
  • AAT < -40° C
 communication time after T15 "on" > 1 s 2 s
  • Continuous
  • 2 DCY
P0073 AAT T1 Ambient Air Temperature Refer to the Repair Manual for Instrument Cluster/Sensor diagnosis. signal range check high
  • AAT > 80° C
 communication time after T15 "on" > 1 s 2 s
  • Continuous
  • 2 DCY
P007C Intake Air Temperature Sensor after intercooler 1 -- Check the Intake Air Temperature (IAT) Sensor -G42- Refer to Mass Air Flow Sensor -G70-, CHECKING  IAT < 0.099 V   2 s
  • Continuous
  • 2 DCY
P007D Intake Air Temperature Sensor after intercooler 1 -- Check the Intake Air Temperature (IAT) Sensor -G42- Refer to Mass Air Flow Sensor -G70-, CHECKING  IAT > 3.20 V   2 s
  • Continuous
  • 2 DCY
P0087 Fuel Rail/System Pressure -- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING 
  • control deviation > 17.000 to 20.000 kPa
  • AND
  • pressure < 12.000 to 12.500 kPa
  • engine revolutions > 20 RPM
 0.75 to 30 s
  • Continuous
  • 2 DCY
P0088 Fuel Rail/System Pressure -- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING 
  • control deviation < 20000 to 30000 kPa
  • AND
  • pressure >21500 kPa
  • engine revolutions > 20 RPM
 0.24 s
  • Continuous
  • 2 DCY
P0089 Fuel Pressure Regulator 1 Performance -- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . Actual pressure Deviation
  • deviation fuel press control < 28% > 35%
  • target press minus actual press > 0.17 MPa
  • target press minus actual press > 0.17 MPa
  • engine speed 500 to 3000 RPM
  • Time after engine start > 30 s
  • ECT 70 to 95° C
  • delta fuel press low < 25kPa
  • fuel cut-off not active
  • engine speed 500 to 4500 RPM
  • Time after engine start > 30 s
  • ECT 70 to 95° C
  • engine speed 500 to 4500 RPM
  • Time after engine start > 80 s
  • ECT 70 to 95° C
  • high press pump setpoint 0.01g
  • fuel cut-off not active
 5 s
  • Continuous
  • 2 DCY
P008A Low Pressure Fuel System Pressure - Too Low -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING 
  • < 0.08 MPa
  • engine speed 500 to 6000 RPM
  • time after engine start > 30 s
 5 s
  • Continuous
  • 2 DCY
P008B Low Pressure Fuel System Pressure - Too High -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING 
  • actual press > 0.8 MPa
  • engine speed 500 to 6000 RPM
  • time after engine start > 30 s
 5 s
  • Continuous
  • 2 DCY
P0090 Fuel Pressure Regulator 1 Control Circuit -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . diagnostic signal from power stage 2.97 < 4.7V output stage =signal high 0.23 s
  • Continuous
  • 2 DCY
P0091 Fuel Pressure Regulator 1 Control Circuit Low -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . diagnostic signal from power stage < 2.97 V output stage =signal high 0.23 s
  • Continuous
  • 2 DCY
P0092 Fuel Pressure Regulator 1 Control Circuit High -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . diagnostic signal from power stage > 3 A output stage =signal low 0.23 s
  • Continuous
  • 2 DCY
P00A2 Intake Air Temperature Sensor after intercooler 2 short to ground -- Check the Intake Air Temperature (IAT) Sensor -G42- Refer to Mass Air Flow Sensor -G70-, CHECKING  IAT < 0.1 V   2 s
  • Continuous
  • 2 DCY
P00A3 Intake Air Temperature Sensor after intercooler 2 open circuit -- Check the Intake Air Temperature (IAT) Sensor -G42- Refer to Mass Air Flow Sensor -G70-, CHECKING  IAT > 3.20 V   2 s
  • Continuous
  • 2 DCY
P00AF position control loop -- Check the charge air system for proper seal. Refer to TURBOCHARGER, G-CHARGER  stuck boost pressure valve open
  • control deviation| >8%
stuck boost pressure valve closed
  • actual position <= 30 %
  • characteristic value<0.45 to 4.5 (amplitude of air mass)f(ambient pressure, ambient temperature)
  • boost pressure=74 to 110KPa
  • engine speed<880RPM
  • vehicle speed=0RPM
  • accelerator pedal position=0%
  • torque demand of engine auxiliaries <4Nm
  • friction moment<110Nm
  • ambient temperature>-7°C
  • engine coolant temperature>65° C
  • throttle valve position=65 to 95 %
  • DPF regeneration mode=off
  • steady state condition of air mass=true
  • 3500 ms
  • 10 s
  • Continuous
  • 2 DCY
P0100 Mass or Volume Air Flow A Circuit -- Check the Manifold Absolute Pressure (MAP) Sensor -G71-. Refer to Mass Air Flow Sensor -G70-, CHECKING . MAF sensor signal, 0 μs - 0.50 s
  • Continuous
  • 2 DCY
P0101 Mass Air flow sensor -- Check the Manifold Absolute Pressure (MAP) Sensor -G71-. Refer to Mass Air Flow Sensor -G70-, CHECKING . rationality PCV disconnection
  • ratio of modeled and measured air mass flow > 1.15 -
  • < 0.85 -
  • EGR valve closed = 100 %
  • throttle valve signal > 94 %
  • intake runner flaps signal > 94 %
  • engine speed = 1100.. 2500 RPM
  • boost pressure = 50.. 200 kPa
  • engine coolant temperature = 60.. 110° C
  • ambient pressure > 50 kPa
  • fuel quantity < 0.5 mg/Str
  • 10 s
  • 5 s
  • Continuous
  • 2 DCY
P0102 Mass Air flow sensor -- Check the Manifold Absolute Pressure (MAP) Sensor -G71-. Refer to Mass Air Flow Sensor -G70-, CHECKING . signal range check low
  • MAF sensor signal (< 0.083 ms) > 900 kg/h
   1s
  • Continuous
  • 2 DCY
P0103 Mass Air flow sensor -- Check the Manifold Absolute Pressure (MAP) Sensor -G71-. Refer to Mass Air Flow Sensor -G70-, CHECKING . signal range check high
  • MAF sensor signal (>4.5 ms) <= 0 kg/h
 engine running 1 s
  • Continuous
  • 2 DCY
P0104 Mass Air flow sensor -- Check the Manifold Absolute Pressure (MAP) Sensor -G71-. Refer to Mass Air Flow Sensor -G70-, CHECKING . Circuit Continuity Check
  • MAF sensor signal period=not measurable
 engine condition=running 0.8 s
  • Continuous
  • 2 DCY
P0111 Intake Air Temperature Circuit Performance -- Check IAT Sensor -G42-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING . stuck high check
  • Temperature difference to > ECT, ECT 2, 35 K
  • Temperature difference to > FTS 40 K
  • Temperature difference to > T1 45 K
  
  • 20 s continuous driving with velocity exceeding 25 mph
  • once/DCY
  • 2 DCY
P0112 Intake Air Temperature Circuit Low Input -- Check IAT Sensor -G42-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING . short to ground
  • signal voltage < 162 mV
   480 s
  • Continuous
  • 2 DCY
P0113 Intake Air Temperature Circuit High Input -- Check IAT Sensor -G42-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING . open circuit or short to battery plus
  • signal voltage > 3255 mV
   480 s
  • Continuous
  • 2 DCY
P0116 ECT Sensor 1 -- Check Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor - G62-, CHECKING .-- Check the coolant regulator. Refer to Engine Mechanical, Fuel Injection and Ignition, Cooling System Components. stuck high check
  • Temperature difference to ECT2, 30 K
  • Temperature difference to T2', FTS 35 K
  • Temperature difference to T1 40K
  
  • 20 s continuous driving with velocity exceeding 25 mph
  • once/DCY
  • 2 DCY
P0117 Engine Coolant Temperature Sensor 1 Circuit Low Input -- Check Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor - G62-, CHECKING .-- Check the coolant regulator. Refer to Engine Mechanical, Fuel Injection and Ignition, Cooling System Components. short to ground
  • signal voltage < 224mV
   480 ms
  • continuous
  • 2 DCY
P0118 Engine Coolant Temperature Sensor 1 Circuit Open -- Check Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor - G62-, CHECKING .-- Check the coolant regulator. Refer to Engine Mechanical, Fuel Injection and Ignition, Cooling System Components. open circuit or short to battery plus
  • signal voltage > 4921 mV
   480 ms
  • continuous
  • 2 DCY
P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Throttle Valve Control Module -J338-, CHECKING 
  • TPS 1-TPS 2, > 1.5%
  • AND
  • relative mass air inegral > 100 to at 0.45 s
  • Engine start completed
  • TPS no fault
 2 s  
P0122 Throttle/Pedal Position Sensor/Switch "A" Circuit Low -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Throttle Valve Control Module -J338-, CHECKING  Signal voltage, <0.117 V   2 s
  • continuous
  • 2 DCY
P0123 Throttle/Pedal Position Sensor/Switch "A" Circuit High -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Throttle Valve Control Module -J338-, CHECKING  Signal voltage, > 4.6 V   2 s
  • continuous
  • 2 DCY
P0128 Engine Coolant Temperature Threshold temperature -- Check the Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor - G62-, CHECKING .
  • measured temperature < 66° C
  • while modeled temperature > 76° C
  • ECT @ engine start = -7 to 56.5° C
  • engine speed > 500 RPM
 900 s
  • Once
  • 2 DCY
P012B Charger inlet pressure rationality check -- Check the Charge Air Pressure Sensor -G31-. Refer Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING 
  • press. difference in cross check between boost press. sensor 1/2; IM press, ambient press sensor
  • press. difference in cross check between boost press. sensor 1/2; IM press.
  • engine speed 0 RPM
  • time after engine stop 10 s
  • vehicle speed 0 MPH
  • pressure quotient 0.25 to 0.8
  • engine speed 600 to 60000 RPM
  • time after engine start > 10 s
 5 s
  • Continuous
  • 2 DCY
P012C Charger inlet pressure short to ground -- Check the Charge Air Pressure Sensor -G31-. Refer Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING  signal voltage < 0.2 V   2 s
  • Continuous
  • 2 DCY
P012D Charger inlet pressure short to B+ -- Check the Charge Air Pressure Sensor -G31-. Refer Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING  signal voltage >4.8 V   2 s
  • Continuous
  • 2 DCY
P0130 O2 Sensor Circuit Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING . Short circuit to battery
  • virtual ground (VM) > 3 V
  • Nernst voltage (UN)> 4 V
  • adjustment voltage (IA/IP) > 1.5 V
Short circuit to ground
  • virtual ground (VM) < 2V
  • Nernst voltage (UN)< 1.75V
  • adjustment voltage (IA/IP)< 0.9 to 0.3V
  • heater control =active
  • heater control =active
  • 2 s
  • 2 s
  • continuous
  • 2 DCY
P0131 O2 Sensor Circuit Low Voltage Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • signal voltage < 0.13 V
   3 s
  • continuous
  • 2 DCY
P0132 O2 Sensor Circuit High Voltage Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • oxygen signal > 3.2 V
  • calibration of internal resistance or O2 signal = not active
  • heater control = active
  • dew point = exceeded
  • O2 heater temperature > 720° C
  • but
  • < 840° C
  • modeled exhaust pressure < 170 kPa
 2 s
  • continuous
  • 2 DCY
P0133 O2 Sensor Circuit Slow Response Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • Oxygen 30% to 60% time > 5 s
  • heater control = active
  • fuel quantity before fuel cut off > 12 mg/stroke
  • change of fuel quantity before fuel cut off < 3 mg/stroke
  • for > 2 s
  • Fuel quantity in fuel cut off < 0.5 mg/stroke
  • Time to fuel cut off < 1.5 s
  • battery voltage > 10.7 V
  • engine speed > 1150 RPM
 10 s
  • Continuous
  • 2 DCY
P0135 O2 Sensor Heater Circuit Bank 1 Sensor 1 -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING . Rationality Check
  • A/F sensor temperature > 840° C
Rationality Check
  • A/F sensor temperature < 720° C
Short circuit to battery
  • signal current > 2.2 A
Short circuit to ground
  • signal voltage <2.15 V
Open circuit
  • signal voltage >4.4V
 Rationality Check
  • fuel cut off = not active
  • time since last fuel cut off > 30 s
  • dew point = exceeded
  • calibration of internal resistance or O2 signal = not active
  • heater control = active
Short circuit to battery
  • dew point = exceeded
Short circuit to ground
  • dew point = exceeded
Open circuit
  • dew point = exceeded
  • 30 s
  • 60
  • 5
  • continuous
  • 2 DCY
P150A Engine off timer Check ALL power and grounds to the ECM. The ECM must have a power supply when the key is off to run the timer and system checks. If OK, replace the ECM. Rationality check
  • ECM time - IPC time > 12 s. (Instrument panel cluster)
  • engine off
  • ignition on
 1 s
  • Once
  • 2 DCY
P0151 O2 Sensor Circuit Low Voltage Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • signal voltage < 0.13 V
   3 s
  • continuous
  • 2 DCY
P0152 O2 Sensor Circuit High Voltage Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • signal voltage > 5.5 V
   3 s
  • continuous
  • 2 DCY
P0153 O2 Sensor Circuit Slow Response Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • response check- lambda value vs modeled lambda value > 0.7998
  • Engine speed, 700-3000 RPM
  • modeled exhaust temperature 500 to 950 °C
  • ECT > 60 °C
  • engine speed deviation 518 RPMs
  • EVAP canister load < 40%
  • mass air flow 0.426 to 1.2 g/Rev
  • delta mass air flow < 0.26664 g/Rev
 65 s
  • once DCY
  • 2 DCY
P0155 O2 Sensor Heater Circuit Bank 2 Sensor 1 -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING .
  • O2S not ready after dewpoint exceeded > 40 s
  • O2S front dewpoint exceeded
  • O2S front no other faults
  • lambda control active
  • Heater control, Active
 40 s
  • once DCY
  • 2 DCY
P0171 EGR Fuel mean value adapation -- Check the fuel pressure --. Refer to the Repair Manual.-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks
  • Adaptive value limit high difference between measured vs. modeled injection quantity <5.8 to 10 mg/stroke
  • engine speed >= 600 RPM & <= 4000 [rpm]
  • injection quantity >= 10 mg/stroke & <= 60 mg/stroke
  • post injection quantity = 0 mg/stroke
  • 2 s
  • continuous
  • 2 DCY
P0172 EGR Fuel mean value adapation -- Check the fuel pressure --. Refer to the Repair Manual.-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks
  • adaptive value limit low difference between measured vs. modeled injection quantity < -5.8 to -10 mg/stroke
  • engine speed >= 600 RPM & <= 4000 [rpm]
  • injection quantity >= 10mg/stroke & <= 60mg / stroke
  • post injection quantity = 0 mg/stroke
  • 2 s
  • continuous
  • 2 DCY
P0174 Fuel System Too Lean, Additive (Bank 1, Bank 2) -- Check the fuel pressure --. Refer to the Repair Manual.-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks
  • lean @ idle Adaptive value > 0.0063 g/Rev
  • Engine speed, < 864 RPM
  • mass fuel flow < 0.0375 g/Rev
  • mass air flow, < 7.5 g/rev/s
  • ECT, >63.0 °C
  • accelerator PP value < 250 %
  • integrated mass air flow > 25g
  • lambda control, closed loop
  • evap purge valve, closed
 35 s
  • continuous
  • 2 DCY
P0174 Fuel System Too Lean, Multiplicative (Bank 1, Bank 2) -- Check the fuel pressure --. Refer to the Repair Manual.-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks
  • too rich at idle Adaptive value >25%
  • Engine speed, < 864 RPM
  • mass fuel flow < 0.0375 g/Rev
  • mass air flow, < 7.5 g/rev/s
  • ECT, >63.0 °C
  • accelerator PP value < 250 %
  • integrated mass air flow > 25g
  • lambda control, closed loop
  • evap purge valve, closed
 35 s
  • continuous
  • 2 DCY
P0175 System Too Rich-Additive (Bank 1, Bank 2) -- Check the fuel pressure --. Refer to the Repair Manual.-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks
  • too rich at idle Adaptive value < 0.0075 g/Rev)
  • Engine speed, < 864 RPM
  • mass fuel flow < 0.0375 g/Rev
  • mass air flow, < 7.5 g/rev/s
  • ECT, >63.0 °C
  • accelerator PP value < 250 %
  • integrated mass air flow > 25g
  • lambda control, closed loop
  • evap purge valve, closed
 35 s
  • continuous
  • 2 DCY
P0175 System Too Rich- Multiplicative (Bank 1, Bank 2) -- Check the fuel pressure --. Refer to the Repair Manual.-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .-- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .-- Check the intake system for leaks (false air).-- Check the vacuum lines for leaks
  • too rich at idle Adaptive value < 25%
  • Engine speed, < 864 RPM
  • mass fuel flow < 0.0375 g/Rev
  • mass air flow, < 7.5 g/rev/s
  • ECT, >63.0 °C
  • accelerator PP value < 250 %
  • integrated mass air flow > 25g
  • lambda control, closed loop
  • evap purge valve, closed
 35 s
  • continuous
  • 2 DCY
P0181 Fuel Temperature Sensor (FTS) -- Check Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING . stuck high check
  • Temperature difference to > ECT, ECT 2, 35 K
  • Temperature difference to > T2 40 K
  • Temperature difference to > T1 45 K
  
  • 20 s continuous driving with velocity exceeding 25 mph
  • once/DCY
  • 2 DCY
P0182 Fuel Temperature Sensor -- Check Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING . short to ground
  • signal voltage < 100 mV
   140 ms
  • Continuous
  • 2 DCY
P0183 Fuel Temperature Sensor -- Check Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING . open circuit or short to battery plus
  • signal voltage > 4900 mV
   140 ms
  • Continuous
  • 2 DCY
P0190 Fuel Pressure Regulator 1 Control Circuit/Open -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . Signal voltage > 4.6 V   2 s
  • Continuous
  • 2 DCY
P0191 Fuel Rail Pressure Sensor Circuit Range/Performance Bank 1 -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . signal voltage< 428 (-40 bar) mV
  • ECU keep alive time active
 0.1 s
  • Once/DCY
  • 2 DCY
adaptation of FRPR > 125 %
  • fuel temperature = 5 to 70° C
  • RP set point 5.000 to 8.000 kPA
  • electric power deviation in FRPR < 2 %
 130 s
P0192 Fuel Rail Pressure Sensor Circuit Low Bank 1 -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . Signal voltage < 0.2 V   480 ms
  • Continuous
  • 2 DCY
P0193 Fuel Rail Pressure Sensor open circuit -- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . signal voltage > 4.8 V   480 ms
  • Continuous
  • 2 DCY
P0201 Injection Valves cylinder 1 -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . open circuit
  • signal from power stage > 60 V
short to battery at Low-Side
  • diagnostic signal from power stage internal signal
short circuit over load
  • voltage level < 30 V
short circuit Low- and Low-Side
  • Injector voltage after Charging < 70 % Nominal voltage
  • Injector voltage before Charging < 55 % Nominal voltage
  • Injector voltage after Charging < 55 % Nominal voltage
  • injection condition = injection ON
  • 4 injections
  • Continuous
  • 2 DCY
P0202 Injection Valves cylinder 2 -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . open circuit
  • signal from power stage > 60 V
short to battery at Low-Side
  • diagnostic signal from power stage internal signal
short circuit over load
  • voltage level < 30 V
short circuit Low- and Low-Side
  • Injector voltage after Charging < 70 % Nominal voltage
  • Injector voltage before Charging < 55 % Nominal voltage
  • Injector voltage after Charging < 55 % Nominal voltage
  • injection condition = injection ON
  • 4 injections
  • Continuous
  • 2 DCY
P0203 Injection Valves cylinder 3 -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . open circuit
  • signal from power stage > 60 V
short to battery at Low-Side
  • diagnostic signal from power stage internal signal
short circuit over load
  • voltage level < 30 V
short circuit Low- and Low-Side
  • Injector voltage after Charging < 70 % Nominal voltage
  • Injector voltage before Charging < 55 % Nominal voltage
  • Injector voltage after Charging < 55 % Nominal voltage
  • injection condition = injection ON
  • 4 injections
  • Continuous
  • 2 DCY
P0204 Injection Valves cylinder 4 -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . open circuit
  • signal from power stage > 60 V
short to battery at Low-Side
  • diagnostic signal from power stage internal signal
short circuit over load
  • voltage level < 30 V
short circuit Low- and Low-Side
  • Injector voltage after Charging < 70 % Nominal voltage
  • Injector voltage before Charging < 55 % Nominal voltage
  • Injector voltage after Charging < 55 % Nominal voltage
  • injection condition = injection ON
  • 4 injections
  • Continuous
  • 2 DCY
P0205 Injection Valves cylinder 5 -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . open circuit
  • signal from power stage > 60 V
short to battery at Low-Side
  • diagnostic signal from power stage internal signal
short circuit over load
  • voltage level < 30 V
short circuit Low- and Low-Side
  • Injector voltage after Charging < 70 % Nominal voltage
  • Injector voltage before Charging < 55 % Nominal voltage
  • Injector voltage after Charging < 55 % Nominal voltage
  • injection condition = injection ON
  • 4 injections
  • Continuous
  • 2 DCY
P0206 Injection Valves cylinder 6 -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . open circuit
  • signal from power stage > 60 V
short to battery at Low-Side
  • diagnostic signal from power stage internal signal
short circuit over load
  • voltage level < 30 V
short circuit Low- and Low-Side
  • Injector voltage after Charging < 70 % Nominal voltage
  • Injector voltage before Charging < 55 % Nominal voltage
  • Injector voltage after Charging < 55 % Nominal voltage
  • injection condition = injection ON
  • 4 injections
  • Continuous
  • 2 DCY
P0221 Throttle/Pedal Position Sensor/Switch "B" Circuit Range/Performance -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Throttle Valve Control Module -J338-, CHECKING 
  • TPS 1-TPS 2 > 1.5%
  • AND
  • relative mass air inegral > 100 to at 0.45 s
  • Engine start completed
  • TPS no fault
 2 s  
P0222 Throttle/Pedal Position Sensor/Switch "B" Circuit Low -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Throttle Valve Control Module -J338-, CHECKING  Signal voltage, <0.117 V   2 s
  • Continuous
  • 2 DCY
P0223 Throttle/Pedal Position Sensor/Switch "B" Circuit High -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Throttle Valve Control Module -J338-, CHECKING  Signal voltage, > 4.6 V   2 s
  • Continuous
  • 2 DCY
P022A charge air cooler bypass actuator -- Check the Charge Air Cooler Bypass Control Module. Refer to Charge Air Cooler Bypass Control Unit -J865-, CHECKING . open circuit
  • signal from power stage > 3.26 V
  • and < 5.4 V
  • power stage commanded off
  • ignition off
  • power stage commanded on
 480 ms
  • Continuous
  • 2 DCY
P022B charge air cooler bypass actuator -- Check the Charge Air Cooler Bypass Control Module. Refer to Charge Air Cooler Bypass Control Unit -J865-, CHECKING . short to ground
  • signal from power stage <= 3.26 V
  • power stage commanded off
  • ignition off
 480 ms
  • Continuous
  • 2 DCY
P022C charge air cooler bypass actuator -- Check the Charge Air Cooler Bypass Control Module. Refer to Charge Air Cooler Bypass Control Unit -J865-, CHECKING . short to battery plus
  • signal from power stage > 1.5 V
  • and > 50 mA
 power stage commanded on 480 ms
  • Continuous
  • 2 DCY
P0234 Turbocharger/Supercharger Overboost Condition Rationality check high -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. comparison of desired boost pressure value and desired value
  • control deviation < -22 kPa
  • boost pressure control mode = closed loop
  • fuel quantity > 15 mg/Str
  • engine speed > 1650 RPM
 4.5 s
  • Continuous
  • 2 DCY
P0235 Boost pressure control -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. Refer to Engine Mechanical, Fuel Injection and Ignition, Charge Air System Boost pressure sensor signal vs target value
  • > 27 to 0.50 kPa, depending on altitude
  • time after start 70 s
  • engine speed 4000 to 7200 RPM
  • ECT > 5 °C
  • TIA > 5 °C
  • modeled charge pressure quotient 1.25 to.2.2
 5 s
  • Continuous
  • 2 DCY
P0236 Turbocharger/Supercharger Boost Sensor -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. Refer to Engine Mechanical, Fuel Injection and Ignition, Charge Air System
  • absolute value of pressure difference between boost pressure and ambient pressure > 14 kPa
  • engine speed < 250 RPM
 200 s
  • Once
  • 2 DCY
P0237 Turbocharger/Supercharger Boost Sensor -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. Refer to appropriate service manual. short to ground
  • sensor voltage < 0.4 V
   480 s
  • Continuous
  • 2 DCY
P0238 Turbocharger/Supercharger Boost Sensor -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. Refer to appropriate service manual. short to battery plus
  • sensor voltage > 4.9 V
   480 s
  • Continuous
  • 2 DCY
P0240 Turbocharger/Supercharger Boost Sensor rationality check -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. Refer to appropriate service manual.
  • pressure difference in cross check between boost pressure sensor 1/2; IM pressure, ambient pressure > 7 kPa
  • pressure difference in cross check between boost pressure sensor 1/2; IM pressure > 12 to 27 kPa
  • pressure difference in cross check between pressure sensor 1 and 2 > 12.51 kPa AND fuel trim activity (bank with deviation is considered to be defective > 151%
  • engine speed 0 RPM
  • time after engine stop 10 s
  • vehicle speed 0 MPH
  • modelled pressure quotient 0.25 to 0.8
  • engine speed 600 to 6000 RPM
  • time after engine start > 10 s
  • modelled charge pressure quotient > 1.2
  • engine speed 600 to 6000 RPM
  • time after engine start > 10 s
 5 s  
P0241 Turbocharger/Supercharger Boost Sensor -short to ground -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. Refer to appropriate service manual. signal voltage < 0.2 V   2 s
  • Continuous
  • 2 DCY
P0242 Turbocharger/Supercharger Boost Sensor short to B+ -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. Refer to appropriate service manual. signal voltage > 4.8 V   5 s
  • Continuous
  • 2 DCY
P0243 Turbocharger/Supercharger Wastegate Solenoid A -- Check the Wastegate Bypass Regulator Valve -N75-. Signal voltage, > 4.40 to 5.60 V
  • boost pressure control valve, commanded off
  • Engine speed, > 80 RPM
 0.5 s
  • Continuous
  • 2 DCY
P0245 Turbocharger/Supercharger Wastegate Solenoid A Low -- Check the Wastegate Bypass Regulator Valve -N75-. Signal voltage, < 2.15 to 3.25 V
  • boost pressure control valve, commanded off
  • Engine speed, > 80 RPM
 0.5 s
  • Continuous
  • 2 DCY
P0246 Turbocharger/Supercharger Wastegate Solenoid A High -- Check the Wastegate Bypass Regulator Valve -N75-. Signal current, >2.20 A
  • boost pressure control valve, commanded on
  • Engine speed, > 80 RPM
 0.5 s
  • Continuous
  • 2 DCY
P024A charge air cooler bypass module -- Check the Charge Air Cooler Bypass Control Module. Refer to Charge Air Cooler Bypass Control Unit -J865-, CHECKING . initialization error
  • signal no change
   ECU initialization time
  • OnceDCY
  • 2 DCY
P024B Charge Air Cooler Bypass Control "A" Stuck -- Check the Charge Air Cooler Bypass Control Module. Refer to Charge Air Cooler Bypass Control Unit -J865-, CHECKING . function error
  • signal low
   ECU initialization time
  • OnceDCY
  • 2 DCY
P025A Fuel PumpOpen circuit -- Check the fuel pump. Refer to the Repair Manual for diagnosis. Signal current < 0.8 mA
  • fuel pump commanded off
 2 s
  • Continuous
  • 2 DCY
P025C Fuel Pump Short to ground -- Check the fuel pump. Refer to the Repair Manual for diagnosis. Signal voltage< 2.0 V
  • fuel pump commanded off
 4.5 s
  • Continuous
  • 2 DCY
P025D Fuel Pump Short to B+ -- Check the fuel pump. Refer to the Repair Manual for diagnosis. Signal current > 1.0 A
  • fuel pump commanded on
 2 s
  • Continuous
  • 2 DCY
P0261 Cylinder 1 Injector Circuit short to ground -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .
  • Signal current < 10 A
  • AND
  • signal voltage < 3.5 V
  • injector commanded on
  • injector commanded off
 3 s
  • Continuous
  • 2 DCY
P0262 Cylinder 1 Injector Circuit short to b+ -- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .
  • Signal current > 16 A
  • injector commanded on
 3 s
  • Continuous
  • 2 DCY
P0263 Cylinder 1 Contribution/Balance -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to Repair Manual.
  • injection time with no torque> 0.192 to 0.396ms < 0.107 to 0.177 ms
  • engine speed>1300 1000 RPM
  • fuel temperature> 0°C
  • gear>3
  • fuel cut off=active
  • ECT> 65° C
  • intake air temperature> 0° C
  • boost pressure >85 kPa
  • DPF regeneration=not active
  • 10 to 40 s.
  • Continuous
  • 2 DCY
P0266 Cylinder 2 Contribution/Balance -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to Repair Manual.
  • injection time with no torque> 0.192 to 0.396 ms < 0.107 to 0.177 ms
  • engine speed>1300 1000 RPM
  • fuel temperature> 0°C
  • gear> 3
  • fuel cut off=active
  • ECT> 65° C
  • intake air temperature> 0° C
  • boost pressure >85 kPa
  • DPF regeneration=not active
  • 10 to 40 s.
  • Continuous
  • 2 DCY
P0269 Cylinder 3 Contribution/Balance -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to Repair Manual.
  • injection time with no torque> 0.192 to 0.396ms < 0.107 to 0.177 ms
  • engine speed>1300 1000 RPM
  • fuel temperature> 0°C
  • gear>3
  • fuel cut off=active
  • ECT> 65° C
  • intake air temperature> 0° C
  • boost pressure >85 kPa
  • DPF regeneration=not active
  • 10 to 40 s.
  • Continuous
  • 2 DCY
P026A Charge Air Undercooling -- Check the charge air system for proper seal. Refer to TURBOCHARGER, G-CHARGER  filtered charge air cooler efficiency<0.7
  • air mass flow = 100 to 400kg/h
  • vehicle speed > 40 km/h
  • engine coolant temperature > 50° C
  • boost pressure / ambient pressure > 1.2
  • engine operation mode= normal
  • ambient temperature > -7.00° C
 150 s
  • Once
  • 2 DCY
P0272 Cylinder 4 Contribution/Balance -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to Repair Manual.
  • injection time with no torque> 0.192 to 0.396ms < 0.107 to 0.177 ms
  • engine speed>1300 1000 RPM
  • fuel temperature> 0°C
  • gear>3
  • fuel cut off=active
  • ECT> 65° C
  • intake air temperature> 0° C
  • boost pressure >85 kPa
  • DPF regeneration=not active
  • 10 to 40 s.
  • Continuous
  • 2 DCY
P0275 Cylinder 5 Contribution/Balance -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to Repair Manual. injection time with no torque > 0.192 to 0.396 ms <0.107 to 0.177 ms
  • engine speed > 1300 1000 RPM
  • fuel temperature> 0°C
  • gear>3
  • fuel cut off=active
  • ECT> 65° C
  • intake air temperature> 0° C
  • boost pressure >85 kPa
  • DPF regeneration=not active
  • 10 to 40 s.
  • Continuous
  • 2 DCY
P0278 Cylinder 6 Contribution/Balance -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to Repair Manual. injection time with no torque> 0.192 to 0.396ms < 0.107 to 0.177ms
  • engine speed > 1300 1000 RPM
  • fuel temperature > 0°C
  • gear> 3
  • fuel cut off = active
  • ECT> 65° C
  • intake air temperature > 0° C
  • boost pressure > 85 kPa
  • DPF regeneration =not active
  • 10 to 40 s.
  • Continuous
  • 2 DCY
P0299 Turbocharger/Supercharger Underboost Rationality check low -- Check the charge air system for proper seal. Refer to TURBOCHARGER, G-CHARGER  comparison of desired boost pressure value and desired value
  • control deviation > 30 to 100 kPa
  • boost pressure control mode = closed loop
  • fuel quantity > 15 mg/Str
  • engine speed > 1650 rpm
 12 s
  • Continuous
  • 2 DCY
P050A Idle Air Control System RPM Lower Or Higher Than Expected -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . Out of range-low
  • engine speed deviation <80 RPM
Out of range-high
  • engine speed deviation >80 RPM
  • time after engine start >0.0 s
  • driver torque demand none
  • vehicle speed 0 km/h
  • altitude <2700 m
  • IAT >-48 °C
  • evap purge valve closed
  • catalyst heating active
  • FOR MANUAL TRANSMISSIONS:
  • engine load <40 to 75%
  • catalyst heating active
  • time after engine start >0.0 s
  • driver torque demand none
  • vehicle speed 0 km/h
  • altitude <2700 m
  • IAT >-48 °C
  • catalyst heating active
 4 s
  • multiple
  • 2 DCY
P146D SCR Heater Circuit 1 Current Sensor-short to battery plus -- Check the Heater For Reducing Agent Line Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING  signal voltage> 4700mV   480 s
  • continuous
  • 2 DCY
P146F SCR Heater Circuit 2 Current Sensor-short to battery plus -- Check the Heater For Reducing Agent Tank Reducing Agent Tank Heater Z102, CHECKING  signal voltage>4700mV   480 s
  • continuous
  • 2 DCY
P0300 Random Misfire Detected -- Check the intake system for leaks.-- Check the fuel pressure. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . instantaneous engine speed monitoring
  • calculated based on values from last two engine revolutions
  • Error threshold: 82 % misfire over 440 crankshaft revolutions
  • engine speed 600.. 1100 RPM
  • fuel quantity 4.. 25 mg/str
  • coolant temp > 30° C
  • time since start > 5 s
  • < 880 Rev
  • Once DCY
  • 2 DCY
P0301 Cylinder 1 Misfire Detected -- Check the intake system for leaks.-- Check the fuel pressure. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . instantaneous engine speed monitoring
  • calculated based on values from last two engine revolutions
  • Error threshold: 82 % misfire over 440 crankshaft revolutions
  • engine speed 600.. 1100 RPM
  • fuel quantity 4.. 25 mg/str
  • coolant temp > 30° C
  • time since start > 5 s
  • < 880 Rev
  • Once DCY
  • 2 DCY
P0302 Cylinder 2 Misfire Detected -- Check the intake system for leaks.-- Check the fuel pressure. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . instantaneous engine speed monitoring
  • calculated based on values from last two engine revolutions
  • Error threshold: 82 % misfire over 440 crankshaft revolutions
  • engine speed 600.. 1100 RPM
  • fuel quantity 4.. 25 mg/str
  • coolant temp > 30° C
  • time since start > 5 s
  • < 880 Rev
  • Once DCY
  • 2 DCY
P0303 Cylinder 3 Misfire Detected -- Check the intake system for leaks.-- Check the fuel pressure. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . instantaneous engine speed monitoring
  • calculated based on values from last two engine revolutions
  • Error threshold: 82 % misfire over 440 crankshaft revolutions
  • engine speed 600.. 1100 RPM
  • fuel quantity 4.. 25 mg/str
  • coolant temp > 30° C
  • time since start > 5 s
  • < 880 Rev
  • Once DCY
  • 2 DCY
P0304 Cylinder 4 Misfire Detected -- Check the intake system for leaks.-- Check the fuel pressure. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . instantaneous engine speed monitoring
  • calculated based on values from last two engine revolutions
  • Error threshold: 82 % misfire over 440 crankshaft revolutions
  • engine speed 600.. 1100 RPM
  • fuel quantity 4.. 25 mg/str
  • coolant temp > 30° C
  • time since start > 5 s
  • < 880 Rev
  • Once DCY
  • 2 DCY
P0305 Cylinder 5 Misfire Detected -- Check the intake system for leaks.-- Check the fuel pressure. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . instantaneous engine speed monitoring
  • calculated based on values from last two engine revolutions
  • Error threshold: 82 % misfire over 440 crankshaft revolutions
  • engine speed 600.. 1100 RPM
  • fuel quantity 4.. 25 mg/str
  • coolant temp > 30° C
  • time since start > 5 s
  • < 880 Rev
  • Once DCY
  • 2 DCY
P0306 Cylinder 6 Misfire Detected -- Check the intake system for leaks.-- Check the fuel pressure. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . instantaneous engine speed monitoring
  • calculated based on values from last two engine revolutions
  • Error threshold: 82 % misfire over 440 crankshaft revolutions
  • engine speed 600.. 1100 RPM
  • fuel quantity 4.. 25 mg/str
  • coolant temp > 30° C
  • time since start > 5 s
  • < 880 Rev
  • Once DCY
  • 2 DCY
P0321 Ignition/Distributor Engine Speed Input Circuit Range/Performance -- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .
  • counted teeth versus reference, incorrect
  • OR
  • monitoring reference gap, failure
  • engine off
  • engine speed >400 RPM
 0.5 s
  • Continuous
  • 2 DCY
P0322 Ignition/Distributor Engine Speed Input Circuit No Signal -- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .
  • camshaft signals >6
  • Engine speed, no signal
  • engine off
  • engine speed >400 RPM
 0.50 s
  • Continuous
  • 2 DCY
P0335 Engine speed sensor -- Check the Engine Speed Sensor -G28- Refer to Engine Speed Sensor -G28-, CHECKING 
  • open circuit > 1 V
  • short to grnd < 1.5 V
  • short to B+ > 3.5 V
  • signal check no signal
   0.4
  • Continuous
  • 2 DCY
P0336 Engine speed sensor -- Check the Engine Speed Sensor -G28- Refer to Engine Speed Sensor -G28-, CHECKING 
  • RPM signal comparison with phase sensor not synchronous
  • counted versus reference teeth > 1
  • actual time value vs modeled time value > 1.375
  • engine speed > 416 RPM
  • engine speed > 416 RPM
  • engine speed > 480 RPM
 0.4 s
  • Continuous
  • 2 DCY
P0340 Camshaft Position Sensor A Circuit (Bank 1 or single sensor) -- Check the Camshaft Position Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING . signal activity check
  • signal voltage no altering @ 4 Rev
  • Engine speed > 32 RPM
 0.4 s
  • Continuous
  • 2 DCY
P0341 Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or single sensor) -- Check the Camshaft Position Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING . actual time value vs min. time value < 1 engine speed > 32 RPM 0.1 s
  • Continuous
  • 2 DCY
P0342 Camshaft Position Sensor A Circuit Low Input (Bank 1 or single sensor) -- Check the Camshaft Position Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
  • signal voltage low and crankshaft signals, 8.0
   0.50 s
  • Continuous
  • 2 DCY
P0343 Camshaft Position Sensor A Circuit High Input (Bank 1 or single sensor) -- Check the Camshaft Position Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
  • signal voltage low and crankshaft signals, 8.0
   0.50 s
  • Continuous
  • 2 DCY
P0345 Camshaft Position Sensor A Circuit (Bank 1 or single sensor) -- Check the Camshaft Position Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING . signal activity check
  • signal voltage no altering @ 4 Rev
  • Engine speed > 32 RPM
 0.4 s
  • Continuous
  • 2 DCY
P0346 Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or single sensor -- Check the Camshaft Position Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
  • adaptive value vs target value > 12.4 ° CA
  • actual time value vs modeled time value 1 to 3.5
  • engine speed > 416 RPM
  • duty cycle commanded off
 2 s
  • Continuous
  • 2 DCY
P0381 Glow Indicator Lamp (wait-to-start lamp) -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . error message from instrument panel
  • receipt bit for lamp request bit (via CAN) not equal with lamp request bit
  • glow system = preglow
 350 ms
  • Once
  • 2 DCY
P0383 Glow Plug Control Module Control Circuit Low -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . short to ground
  • diagnostic signal from power stage = 0 V
 glow system = not active 500 ms
  • Continuous
  • 2 DCY
P0384 Glow Plug Control Module Control Circuit High -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . Diagnostic signal from power stage = 0 V Glow system = not active 500 ms
  • Continuous
  • 2 DCY
P040B EGR Gas Temperature Sensor -- Check EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING . stuck low check
  • value of modelled - measured TEGR > f(value of modelled TEGR)° C 30 to 70 40 to 80K
  • 30 to 70 40 to 80[K]
stuck high check
  • Temperature difference to > 60 K. T3, T4,, T4', T5, T6
  • time since engine start> 300 s
  • engine coolant temperature > 10° C
  • DPF regeneration = not active
  • EGR valve=0 to 93
 8 s
  • Continuous
  • 2 DCY
P040C EGR Gas Temperature Sensor -- Check EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING . short to ground- signal voltage < 678 mV   480 ms
  • Continuous
  • 2 DCY
P040D EGR Gas Temperature Sensor -- Check EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING . signal voltage> 2606 mV   480
  • Continuous
  • 2 DCY
P0401 EGR "A" Flow Insufficient Detected -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . control deviation < f(engine speed, quantity, target air mass flow)
  • EGR = closed loop
  • fuel quantity = 6 to 17 mg/str
  • engine speed = 660 to 2500 RPM
  • DPF regeneration mode = off
 10 s
  • Continuous
  • 2 DCY
P0402 EGR "A" Flow Excessive Detected -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . ratio of modeled and measured air mass flow > 1.3 -
  • EGR valve closed = 100 %
  • throttle valve signal > 94 %
  • intake runner flaps signal > 94 %
  • engine speed = 1100.. 2500 RPM
  • boost pressure = 50.. 200 kPa
  • engine coolant temperature = 60.. 110° C
  • ambient pressure > 50 kPa
  • fuel quantity < 0.5 mg/Str
 5 s
  • Continuous
  • 2 DCY
P0403 EGR "A" Control Circuit/Open -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . open circuit
  • diagnostic signal from power stage > 0.8 (Out1) V
  • and < 2 (Out2) V
short to battery
  • diagnostic signal from power stage = 8 to 18 A
short Circuit to ground
  • diagnostic signal from power stage
short Circuit over load
  • diagnostic signal from power stage = 8 to 18 A
under voltage
  • diagnostic signal from power stage > 5 V or diagnostic signal from power stage > 5 V
  • power stage = OFF state
  • power stage = ON state
  • power stage = ON state
  • power stage = ON state
  • power stage = ON state
  • 600 ms
  • 480 ms
  • 480 ms
  • 480 ms
  • 480 ms
  • Continuous
  • 2 DCY
-- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . stuck valve closed
  • |control deviation| > 10 %
stuck valve open
  • actual position <= 17 %
  
  • 4000 ms
P0404 EGR "A" Control Circuit Range/Performance -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . stuck valve closed
  • control deviation|>10%
stuck valve open
  • control deviation>10%
 coldstart emission strategy =active 5500 s
  • Continuous
  • 2 DCY
P0405 EGR Sensor "A" Circuit Low -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . out of range low
  • position sensor signal < 210 mV
 ECT >-20° C 480 ms
  • Continuous
  • 2 DCY
P0406 EGR Sensor "A" Circuit High -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . out of range high
  • position sensor signal >= 4690 mV
 ECT >-20° C 480 ms
  • Continuous
  • 2 DCY
P0420 Catalyst System Bank 1 Efficiency Below Threshold -- Check the Three Way Catalytic Converter (TWC). Refer to CATALYTIC CONVERTER, CHECKING .
  • ratio of measured and modeled heat quantity < 0.3
  • modeled heat quantity flow > 1600W
  • modeled cat temp. > 210° C
  • integrated post injection >= 60g within 300 s
 time until integrated post injection rate >= 60g, but less than 300s, not fixed
  • Immediate
P0425 Catalyst Temperature Sensor Circuit -- Check the Exhaust Gas Temperature Sensor. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING  short to battery plus or open circuit
  • signal voltage > 1652 mV
   480 ms
  • Continuous
  • 2 DCY
P0426 Catalyst Temperature Sensor Circuit Range/Performance -- Check the Exhaust Gas Temperature Sensor. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING  stuck high check
  • Temperature difference to TEGR, T3, T4, T5, T6 > 60 K
stuck low check
  • mean value of modelled - measured T4' > 100 K
   300 s
  • Continuous
  • 2 DCY
P0427 Catalyst Temperature Sensor Bank 1 Low Input -- Check the Exhaust Gas Temperature Sensor. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING  short to ground
  • signal voltage < 330 mV
   480 ms
  • Continuous
  • 2 DCY
P04DD Cold Start EGR "A" Flow Insufficient Detected -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . control deviation < f(engine speed, injection quantity, target air mass flow)
  • EGR =closed loop
  • fuel quantity=6 to 17mg/str
  • engine speed=660 to 2500 RPM
  • DPF regeneration mode=off
 10 s
  • Continuous
  • 2 DCY
P04DE Cold Start EGR "A" Flow Excessive Detected -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING . ratio of modeled and measured air mass flow>f(turbo charger position)
  • EGR valve closed = 100 %
  • throttle valve signal > 94 %
  • intake runner flaps signal > 94 %
  • engine speed = 1100.. 2500 RPM
  • boost pressure = 50.. 200 kPa
  • engine coolant temperature = 60.. 110° C
  • ambient pressure > 50 kPa
  • fuel quantity < 0.5 mg/Str
 4 s
  • Continuous
  • 2 DCY
P0501 Vehicle Speed Sensor Performance -- Check the speed signal input. Refer to SPEED SIGNAL, CHECKING . Vehicle speed < 6 km/h Engine speed < 2800 RPM 10480 ms
  • 2 DCY
P0506 Idle Air Control System RPM Lower Than Expected -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . comparison of actual and desired idle speed
  • control deviation < 10%
  • engine condition = running
  • coolant temperature = -7.04.. 106.94° C
  • vehicle speed < 1 [km/h]
  • accelerator pedal position = 0 %
 25000 ms
  • Continuous
  • 2 DCY
P0507 Idle Air Control System RPM Higher Than Expected -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . comparison of actual and desired idle speed
  • control deviation > 10%
  • engine condition = running
  • coolant temperature = -7.04.. 106.94° C
  • vehicle speed < 1 [km/h]
  • accelerator pedal position = 0 %
 25000 ms
  • Continuous
  • 2 DCY
P0544 EGR Gas Temperature Sensor EGT1 -- Check the Exhaust Gas Temperature Sensor. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING  short to battery plus-signal voltage >2606 mV   480 ms
  • Continuous
  • 2 DCY
P0545 EGR Gas Temperature Sensor EGT1 -- Check the Exhaust Gas Temperature Sensor. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING  short to ground-signal voltage < 678 mV   480 ms
  • Continuous
  • 2 DCY
P050A Idle Air Control System RPM Higher Or Lower Than Expected -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING .
  • control deviation>10%
  • engine condition = running
  • coolant temperature = -7.04.. 106.94° C
  • vehicle speed <1 km/h
  • accelerator pedal position=0%
  • cold start emission reduction strategy=active
 25000 ms
  • multiple
  • 2 DCY
P050E plausibility check of the exhaust gas temperature (downstream DPF) via modeled exhaust gas heat quantity -- Check the Reduction Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING  Exhaust gas temperature (downstream DPF)<100° C
  • modeled exhaust gas heat quantity >100 kJ
  • Ambient temperature >-40° C
  
  • once / DCY
  • 2 DCY
P0601 Internal Control Module Memory Check Sum Error -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. Internal check sum, incorrect   2 s
  • Continuous
  • 2 DCY
P0603 internal hardware check -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. SPI communication lost   1.5 s
  • Continuous
  • 2 DCY
P0604 Internal Control Module Random Access Memory (RAM) Error -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. Write ability check, failed none  
  • Once/DCY
  • 2 DCY
P0605 Internal Control Module Read Only Memory (ROM) Error -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. Checksum Incorrect   1 s
  • Continuous
  • 2 DCY
P0606 CAN: Internal Fault -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. CAN controller RAM check
  • RAM error memory checksum error
  • ignition = on
  • none
  • Once
  • 2 DCY
P0607 Ambient air pressure sensor -- Check the Charge Air Sensor/Intake Air Sensor. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING  short to ground
  • sensor voltage < 0.265 V
short to battery plus
  • sensor voltage > 3.9 V
 oxygen sensor raw signal calibration = active 480 ms
  • Continuous
  • 2 DCY
P0627 Fuel Pump "A" Control Circuit /Open -- Check the Transfer Pump voltage input. Refer to the Transfer Pump voltage supply checking in Repair Manual for diagnosis.
  • Diagnostic signal from power stage < 2.5 V or > 4.5 V
 Power stage = Off state 480 ms
  • Continuous
  • 2 DCY
P0629 Fuel pump (inside tank, 1bar)- short to battery -- Check the Transfer Pump voltage input. Refer to the Transfer Pump voltage supply checking in Repair Manual for diagnosis. diagnostic signal from power stage > 2.2 A power stage = ON State 0.48 s
  • Continuous
  • 2 DCY
P0634 ECM Internal Temperature Too High -- Replace the Engine Control Module -J623- Refer to the Repair Manual for procedure. power stage temperature >175° C   480 ms
  • Continuous
  • 2 DCY
P0638 Throttle Actuator Control Range/Performance Bank 1 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . Rationality check:
  • duty cycle >0.4 s at 98%
  • AND
  • actual TPS- calc value - ref. point < 1.5°
  • engine start not active
 .045 s
  • Continuous
  • 2 DCY
P0641 Sensor supply -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. open circuit
  • diagnostic signal from power stage > 0.94 UG1, 2, 3/UVDD5
   none
  • Continuous
  • 2 DCY
P0642 Sensor Reference Voltage A Circuit Low -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. Signal voltage, < 4.615 V   0.15 s
  • Continuous
  • 2 DCY
P0643 Sensor Reference Voltage A Circuit High -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. 5 V supply voltage >5.434 V   0.15 s
  • Continuous
  • 2 DCY
P0651 Sensor supply -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. open circuit
  • diagnostic signal from power stage < 0.98 UG1, 2, 3/UVDD5
   none
  • Continuous
  • 2 DCY
P0652 Sensor Reference Voltage B Circuit Low -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. Signal voltage, < 4.615 V   0.15 s
  • Continuous
  • 2 DCY
P0653 Sensor Reference Voltage B Circuit High -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. 5 V supply voltage >5.434 V   0.15 s
  • Continuous
  • 2 DCY
P0657 Actuator Supply Voltage A Circuit / Open -- Check the Engine Control Module Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY RELAY, CHECKING  Signal current < 0.8 mA
  • Relay, commanded on
 1.5 s
  • Continuous
  • 2 DCY
P0658 Actuator Supply Voltage A Circuit Low -- Check the Engine Control Module Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY RELAY, CHECKING  Signal voltage, > 2.0 V
  • Relay, commanded off
 1.5 s
  • Continuous
  • 2 DCY
P0659 Actuator Supply Voltage "A" Circuit High -- Check the Engine Control Module Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY RELAY, CHECKING  Signal current >1.0 A
  • Relay, commanded on
 1.5 s
  • Continuous
  • 2 DCY
P0670 Glow Plug Module 1 Control Circuit electrical malfunction electrical circuit -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . open circuit
  • diagnostic signal from power stage = 0 V
internel self test from GCU
  • message from glow control unit = Errorbit
 glow system = not active
  • 500 ms
  • 3 s
  • Continuous
  • 2 DCY
P0671 Cylinder 1 Glow Plug Circuit -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check glow plug #1
  • glow current <= 2.20 A
 glow system = active 1.5 s
  • Continuous
  • 2 DCY
P0672 Cylinder 2 Glow Plug Circuit -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check glow plug #2
  • glow current <= 2.20 A
 glow system = active 1.5 s
  • Continuous
  • 2 DCY
P0673 Cylinder 3 Glow Plug Circuit -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check glow plug #3
  • glow current <= 2.20 A
 glow system = active 1.5 s
  • Continuous
  • 2 DCY
P0674 Cylinder 4 Glow Plug Circuit -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check glow plug #4
  • glow current <= 2.20 A
 glow system = active 1.5 s
  • Continuous
  • 2 DCY
P0675 Cylinder 5 Glow Plug Circuit -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check glow plug #5
  • glow current <= 2.20 A
 glow system = active 1.5 s
  • Continuous
  • 2 DCY
P0676 Cylinder 6 Glow Plug Circuit -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check glow plug #6
  • glow current <= 2.20 A
 glow system = active 1.5 s
  • Continuous
  • 2 DCY
P066A Cylinder 1 Glow Plug Control Circuit Low -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check (Overcurrent) glow plug #1
  • glow current >= 70.00 A
 glow system = active 50 ms
  • Continuous
  • 2 DCY
P066C Cylinder 2 Glow Plug Control Circuit Low -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check (Overcurrent) glow plug #2
  • glow current >= 70.00 A
 glow system = active 50 ms
  • Continuous
  • 2 DCY
P066E Cylinder 3 Glow Plug Control Circuit Low -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check (Overcurrent) glow plug #3
  • glow current >= 70.00 A
 glow system = active 50 ms
  • Continuous
  • 2 DCY
P067A Cylinder 4 Glow Plug Control Circuit Low -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check (Overcurrent) glow plug #4
  • glow current >= 70.00 A
 glow system = active 50 ms
  • Continuous
  • 2 DCY
P067C Cylinder 5 Glow Plug Control Circuit Low -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check (Overcurrent) glow plug #5
  • glow current >= 70.00 A
 glow system = active 50 ms
  • Continuous
  • 2 DCY
P067E Cylinder 6 Glow Plug Control Circuit Low -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . current check (Overcurrent) glow plug #6
  • glow current >= 70.00 A
 glow system = active 50 ms
  • Continuous
  • 2 DCY
P06B9 Cylinder 1 Glow Plug Circuit Range/Performance -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . resistor check glow plug circuit, glow plug #1
  • Glow Plug Resistance (anytime) > 1.2 Ω
 glow system = active 4 s
  • Continuous
  • 2 DCY
P06BA Cylinder 2 Glow Plug Circuit Range/Performance -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . resistor check glow plug circuit, glow plug #2
  • Glow Plug Resistance (anytime) > 1.2 Ω
 glow system = active 4 s
  • Continuous
  • 2 DCY
P06BB Cylinder 3 Glow Plug Circuit Range/Performance -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . resistor check glow plug circuit, glow plug #3
  • Glow Plug Resistance (anytime) > 1.2 Ω
 glow system = active 4 s
  • Continuous
  • 2 DCY
P06BC Cylinder 4 Glow Plug Circuit Range/Performance -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . resistor check glow plug circuit, glow plug #4
  • Glow Plug Resistance (anytime) > 1.2 Ω
 glow system = active 4 s
  • Continuous
  • 2 DCY
P06BD Cylinder 5 Glow Plug Circuit Range/Performance -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . resistor check glow plug circuit, glow plug #5
  • Glow Plug Resistance (anytime) > 1.2 Ω
 glow system = active 4 s
  • Continuous
  • 2 DCY
P06BE Cylinder 6 Glow Plug Circuit Range/Performance -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . resistor check glow plug circuit, glow plug #6
  • Glow Plug Resistance (anytime) > 1.2 Ω
 glow system = active 4 s
  • Continuous
  • 2 DCY
P068A Main Relay -- Check the Engine Control Module Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY RELAY, CHECKING . ECM/PCM Power Relay De-Energized Performance - Too Early
  • Error Counter
 power stage = ON State 3 times
  • Once
  • 2 DCY
P0684 Glow Control Unit -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . monitoring of communication with GCU
  • message from glow control unit = missing
monitoring of supply voltage
  • message from glow control unit = Errorbit
  • ECT < 30° C
 3 s
  • Continuous
  • 2 DCY
P0697 Sensor supply -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. open circuit
  • diagnostic signal from power stage > 1.06 UG1, 2, 3/UVDD5
   none
  • Continuous
  • 2 DCY
P0698 Sensor Reference Voltage C Circuit Low -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. Signal voltage, < 4.6-5 V Threshold values dep. on internal 5 V rev voltage 0.4 s
  • 2 DCY
P0699 Sensor Reference Voltage C Circuit High -- Replace the Engine Control Module -J623-. Refer to appropriate service manual. 5 V supply voltage>4.99-5.41 V Threshold values dep. on internal 5 V rev voltage 0.4 s
  • 2 DCY
P06FE CSERS -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . function error signallow 4 s
  • Continuous
  • 2 DCY
P12A1 Fuel Rail Pressure Sensor Inappropriately Low -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .
  • deviation fuel rail pressure control > 0.60 g/Rev
  • AND
  • deviation lambda control < 22.5%
  • engine speed 580 to 3480 RPM
  • time after engine start > 8 s
  • evap canister load < 25%
  • lambda control closed loop
  • fuel cut off not active
  • high pressure pump setpoint 0.015 to 0.105 g/Rev
  • 5 s
  • Continuous
  • 2 DCY
P12A2 Fuel Rail Pressure Sensor Inappropriately High -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .
  • deviation fuel rail pressure control > 0.51 g/Rev
  • AND
  • deviation lambda control > 30%
  • engine speed 580 to 3480 RPM
  • time after engine start > 8 s
  • evap canister load < 25%
  • lambda control closed loop
  • fuel cut off not active
  • high pressure pump setpoint 0.015 to 0.105 g/Rev
  • 5 s
  • Continuous
  • 2 DCY
P12A4 Fuel Rail Pump Control Valve Stuck Closed -- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .
  • deviation fuel rail pressure control < 0.120 g/Rev
  • AND
  • actual press. above target press. -15 to 15%
  • engine speed 580 to 3480 RPM
  • time after engine start > 8 s
  • evap canister load < 25%
  • lambda control closed loop
  • fuel cut off not active
  • high pressure pump setpoint 0.015 to 0.105 g/Rev
 5 s
  • Continuous
  • 2 DCY
P149D Urea transfer pump-open circuit -- Check and/or repair wiring harness-- Replace the Urea transfer pump-- Check the appropriate Repair Manual diagnostic signal from power stage > 4.5 V power stage = OFF state 480 ms
  • Continuous
  • 2 DCY
P149E Urea transfer pump-short to ground -- Check and/or repair wiring harness-- Replace the Urea transfer pump-- Check the appropriate Repair Manual diagnostic signal from power stage < 2.97 V power stage = OFF state 480 ms
  • Continuous
  • 2 DCY
P149F Urea transfer pump-short to battery -- Check and/or repair wiring harness-- Replace the Urea transfer pump-- Check the appropriate Repair Manual power stage current>3A power stage = ON state 480 ms
  • Continuous
  • 2 DCY
P1419 EGR Cooler Bypass Valve 2 -- Check the EGR Cooler Switch-over Valve 2 N381. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooler Switch-Over Valve 2 -N381-, CHECKING  short to battery
  • power stage current>2.2 A
 power stage = signal low 480 ms
  • Continuous
  • 2 DCY
P1499 EGR Cooler Bypass Valve 2 -- Check the EGR Cooler Switch-over Valve 2 N381. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooler Switch-Over Valve 2 -N381-, CHECKING  open circuit
  • signal from power stage < 4.97 V
 power stage = signal high 480 ms
  • Continuous
  • 2 DCY
P148F EGR Cooler Bypass Valve 2 -- Check the EGR Cooler Switch-over Valve 2 N381. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooler Switch-Over Valve 2 -N381-, CHECKING  short to ground
  • signal from power stage < 2.97 V
 power stage = signal high 480 ms
  • Continuous
  • 2 DCY
P149D Urea transfer pump Check the tank connections, and power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. power stage voltage>2, 97 or < 4, 7[V] power stage= OFF state 480ms
  • Continuous
  • 2 DCY
P20EE SCR Efficieny -- Check the Reduction Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING  Difference between calculated and measured efficiency > 0.25
  • Status NOx-Sensor Downstream = ready
  • Status NOx-Sensor Upstream = ready
  • urea dosing = active
  • Adaptation = not active
  • DPF regeneration = not active
  • SCR-Catalyst temp gradient (dep on upstream temp SCR - EGT4) < 0.2 to 0.34 K/s
  • SCR catalyst modeled temperature = 240 to 350° C
  • Nox-concentration upstream < 1500 ppm
  • Ambient pressure>70kPa
  • Ambient temperature>-12° C
 Integrated NOx-Massflow upstream >= 0.4
  • Continuous
  • 2 DCY
P200A Intake Manifold Runner Control out of range -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . signal voltage < 0.7 V time after engine start 1 s 2 s
  • Continuous
  • 2 DCY
P2002 Diesel Particular Filter-Threshold -- Check theExhaust Pressure Sensor -G450-. Refer to Differential Pressure Sensor -G505-, CHECKING . If the pressure sensors are OK, a Service Bay Regeneration should be performed using a VAS 5052 (available for rental) or equivalent scan tool PM efficiency
  • differential pressure < f(volumetric flow rate.soot load) kPa
  • missing substrate
  • differential pressure < f(volumetric flow rate) kPa
  • calculated temperature of diesel particular filter > 250 to 450°
  • calculated DPF loading > 10 g
  • exhaust gas flow rate > 300 m3 /h
  • T ambient (T1) > -7° C
  • regeneration mode = off
  • exhaust volumetric flow rate > 400 m3 /h
  • delta exhaust volumetric flow rate < |20| m3 /h/s
  • within time period=1 s
  • ambient temperature>-7° C
 2 s
  • Multiple
  • 2 DCY
  • Once
  • 2 DCY
P200B Intake Manifold Runner Control overtravel -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . signal voltage < 0.7 V time after engine start 1 s 2 s
  • Continuous
  • 2 DCY
P2004 Intake Manifold Runner Control Bank 1 Stuck Open -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . stuck valve open
  • control deviation > 10 %
  • actual position <= 40 actual position <= 40 [%]%
   1400 ms
  • Continuous
  • 2 DCY
P2005 Intake Manifold Runner Control Bank 2 Stuck Open -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . stuck valve open
  • control deviation > 10 %
  • actual position <= 40 actual position <= 40 [%]%
   1400 ms
  • Continuous
  • 2 DCY
P2006 Intake Manifold Runner Control Bank 1 Stuck Closed -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . stuck valve closed
  • control deviation > 10 %
  • actual position > 40%
   1400 ms
  • Continuous
  • 2 DCY
P2007 Intake Manifold Runner Control Bank 2 Stuck Closed -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . stuck valve closed
  • control deviation > 10 %
  • actual position > 40%
   1400 ms
  • Continuous
  • 2 DCY
P2008 Intake Manifold Runner Control Bank 1 Stuck Open -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . open circuit
  • diagnostic signal from power stage > 0.8 (Out1) V
  • and < 2 (Out2) V
short circuit over load
  • diagnostic signal from power stage = 8 to 18 A
Under voltage
  • diagnostic signal from power stage > 5 V
  • < 3.4 V
  • power stage = OFF state
  • 600 ms
  • Continuous
  • 2 DCY
P2009 Intake Manifold Runner Bank 1 Control Circuit Low -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . short to ground
  • signal voltage > 0.2. V
  
  • 480 ms
  • Continuous
  • 2 DCY
P2010 Intake Manifold Runner Control Circuit High, Bank 1 -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . short to battery
  • diagnostic signal from power stage = 8 to 18 A
  • power stage = ON State
  • 480 ms
  • Continuous
  • 2 DCY
P2011 Intake Manifold Runner Bank 2 Control Circuit Stuck Open -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . open circuit
  • diagnostic signal from power stage > 0.8 (Out1) V
  • and < 2 (Out2) V
short circuit over load
  • diagnostic signal from power stage = 8 to 18 A
Under voltage
  • diagnostic signal from power stage > 5 V
  • < 3.4 V
  • power stage = OFF state
  • power stage = ON state
  • 600 ms
  • Continuous
  • 2 DCY
P2012 Intake Manifold Runner Bank 2 Control Circuit Low -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . short to ground
  • signal voltage > 0.2. V
  
  • 480 ms
  • Continuous
  • 2 DCY
P2013 Intake Manifold Runner Bank 2 Control Circuit High -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . short to battery
  • diagnostic signal from power stage = 8 to 18 A
  • power stage = ON State
  • 480 ms
  • Continuous
  • 2 DCY
P2014 Intake Manifold Runner Position Sensor/Switch Circuit Bank 1 Short to ground -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . Signal voltage, < 0.2 V   2 s
  • Continuous
  • 2 DCY
P2015 intake manifold runner flaps position control loop -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . out of range
  • sensor voltage < 3550 mV
  • sensor voltage > 1450 mV
OR out of range high
  • position sensor signal > 4450 mV and < 4750 mV
OR out of range low
  • position sensor signal < 550 mV and > 250 mV
  
  • 200 ms
  • ECM keep alive time
  • 2 DCY
P2016 intake manifold runner flaps position control loop -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . out of range low
  • position sensor signal <= 250 mV
   480 ms
  • Continuous
  • 2 DCY
P2017 intake manifold runner flaps position control loop -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . out of range high
  • position sensor signal >= 4750 mV
   480 ms
  • Continuous
  • 2 DCY
P2019 Intake Manifold Runner Position Sensor/Switch Circuit Bank 1 Open circuit -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . Signal voltage, < 0.2 V   2 s
  • Continuous
  • 2 DCY
P2020 Intake Manifold Runner Position Sensor Circuit Bank 2 Range/Performance -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . out of range
  • sensor voltage < 3550 mV
  • sensor voltage > 1450 mV
OR out of range high
  • position sensor signal > 4450 mV and < 4750 mV
OR out of range low
  • position sensor signal < 550 mV and > 250 mV
  
  • 200 ms
  • ECM keep alive time
  • 2 DCY
P2021 Intake Manifold Runner Position Sensor Circuit Bank 2 Low -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . out of range low
  • position sensor signal <= 250 mV
   480 ms
  • Continuous
  • 2 DCY
P2022 Intake Manifold Runner Position Sensor Circuit Bank 2 High -- Check the Intake Flap Motor -V157-. Refer to Intake Flap Motor -V157- / Intake Flap Motor 2 -V275-, CHECKING . out of range high
  • position sensor signal >= 4750 mV
   480 ms
  • Continuous
  • 2 DCY
P2031 Exhaust Temperature Sensor 2 -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . short to battery plus or open circuit
  • signal voltage > 2606 mV
   480 ms
  • Continuous
  • 2 DCY
P2032 Exhaust Temperature Sensor 2 -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . short to ground
  • signal voltage < 678 mV
   480 ms
  • Continuous
  • 2 DCY
P2047 SCR System Components Dosing valve open circuit -- Check the Reduction Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING  diagnostic signal from power stage 2, 97 or < 4, 7V power stage = OFF state 2000 ms
  • Continuous
  • 2 DCY
P2048 SCR System Components Dosing valve-short to ground -- Check the Reduction Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING  analog measure>1600 mA power stage = ON state 2000 ms
  • Continuous
  • 2 DCY
P2049 SCR System Components Dosing valve short to battery -- Check the Reduction Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING  analog measure<200 mA power stage = ON state 2000 ms
  • Continuous
  • 2 DCY
P20BB SCR Heater Circuit 1-short to ground Heating 1 circuit is the tank heater. No tank module assembly components are serviced separately (at the time of writing). Replacement of the Reducing Agent Tank Module assembly is necessary if the tank module power and grounds are present, and no heater connection faults exist between the heating module (on the side of the tank) and the tank heating element connectors. diagnostic signal from power stage < 2.97 V power stage = OFF state 0.48 s
  • Continuous
  • 2 DCY
P20BC SCR Heater Circuit 1-short to battery Heating 1 circuit is the tank heater. No tank module assembly components are serviced separately (at the time of writing). Replacement of the Reducing Agent Tank Module assembly is necessary if the tank module power and grounds are present, and no heater connection faults exist between the heating module (on the side of the tank) and the tank heating element connectors. diagnostic signal from power stage > 2.2 A power stage = ON state 0.48 s
  • Continuous
  • 2 DCY
P20B9 SCR Heater Circuit 1-open circuit Heating 1 circuit is the tank heater. No tank module assembly components are serviced separately (at the time of writing). Replacement of the Reducing Agent Tank Module assembly is necessary if the tank module power and grounds are present, and no heater connection faults exist between the heating module (on the side of the tank) and the tank heating element connectors. power stage voltage2, 97 or < 4, 7[V] power stage = OFF state 0.48 s
  • Continuous
  • 2 DCY
P20BD SCR Heater Circuit 2-open circuit -- Check the Reducing Agent Wire Heater. Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING  diagnostic signal from power stage > 4.5V power stage = OFF state 0.48 s
  • Continuous
  • 2 DCY
P20BF SCR Heater Circuit 2-short to ground -- Check the Reducing Agent Wire Heater. Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING  power stage voltage2, 97 or < 4, 7[V] power stage = OFF state 0.48 s
  • Continuous
  • 2 DCY
P20C0 SCR Heater Circuit 2-short to battery -- Check the Reducing Agent Wire Heater. Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING  diagnostic signal from power stage > 2.2 A power stage = ON state 0.48 s
  • Continuous
  • 2 DCY
P202A SCR Heater Control Circuit 1-rationality check Check the tank connections, and power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. conductance during heating<=0.1S heating=on 1000 ms
  • Once DCY
  • 2 DCY
P202B SCR Heater Control Circuit 1-open circuit/short to battery plus Check the tank connections, and power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. Open circuit
  • max. conductance at engaging>0.85S
Short to B +
  • max. conductance at engaging<0.5 s
 time since engaging > 55 s 0.48 s
  • Once DCY
  • 2 DCY
P202C SCR Heater Control Circuit 1-short to ground Check the tank connections, and power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. max. power at engaging >0.85s time since engaging > 55 s 480 ms
  • Once DCY
  • 2 DCY
P20B5 SCR Heater Control Circuit 2-rationality check -- Check the Reducing Agent Wire Heater. Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING  conductance during heating<=0.1 s heating=on 1000 ms
  • Once DCY
  • 2 DCY
P20B7 SCR Heater Control Circuit 2-open circuit/short to battery plus -- Check the Reducing Agent Wire Heater. Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING 
  • max. conductance at engaging<0.4 s
   480 ms
  • Once DCY
  • 2 DCY
P20B8 SCR Heater Control Circuit 2-short to ground -- Check the Reducing Agent Wire Heater. Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING  max. conductance at engaging>1s time since engaging > 10 s 480 ms
  • Once DCY
  • 2 DCY
P203B Urea Tank Level Reed Sensors-rationality check Check the Reduction Agent Tank connections, and power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present and no connection faults are found, Replace the Reduction Agent Tank Module assembly. both reed sensor signals = 382 to 2350 mV and and out of regular range for > 15 s   480 ms
  • Continuous
  • 2 DCY
P203C Urea Tank Level Reed Sensors-open circuit or short to ground Check the Reduction Agent Tank connections, and power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present and no connection faults are found, Replace the Reduction Agent Tank Module assembly. signal voltage < 250 mV   480 ms
  • Continuous
  • 2 DCY
P203D Urea Tank Level Reed Sensors-short to battery plus Check the Reduction Agent Tank connections, and power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present and no connection faults are found, Replace the Reduction Agent Tank Module assembly. signal voltage > 2350 mV   480 ms
  • Continuous
  • 2 DCY
P204A Urea Pressure Sensor -- Check the Reduction Agent Pressure Sensor --. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING . short to ground or open circuit signal voltage < 380 mV   480 ms
  • Continuous
  • 2 DCY
P204B Urea Pressure Sensor-rationality -- Check the Reduction Agent Pressure Sensor --. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING . actual pressure before pressure built up > 500 hPa
  • T6 > 100° C
  • Ambient temperature > -3 ° C or defrosting completed
  • Urea tank temperature > -7 °C
  • engine speed > 600 RPM
 200 ms
  • once/DCY
  • 2 DCY
P204D Urea Pressure Sensor-short to battery plus -- Check the Reduction Agent Pressure Sensor --. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING . signal voltage > 4800 mV
  • T6 > 100 °C
  • Ambient temperature > -3 °C or defrosting completed
  • Urea tank temperature > -7 °C
  • Engine speed > 600 rpm
 200 ms
  • once
  • 2 DCY
P205A Urea tank temperature sensor-open circuit or short to battery plus -- Check the Reducing Agent Tank Temperature Sensor --. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING  signal voltage > 4697mV   800 ms
  • Continuous
  • 2 DCY
P205B Urea tank temperature sensor-rationality check -- Check the Reducing Agent Tank Temperature Sensor --. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING  absolute value of temperature difference to ECT>30K
  • Engine off time > 9 h
  • rising of urea temperature within 25 minutes < 1.5 K
 480 ms
  • Continuous
  • 2 DCY
P205C Urea tank temperature sensor-short to ground -- Check the Reducing Agent Tank Temperature Sensor --. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING  signal voltage< 303mV   800 ms
  • Continuous
  • 2 DCY
P207F SCR improper reductant Consult the appropriate service manual for detailed descriptions of the required fluids and/or chemicals required. Difference between calculated and measured efficiency > 0.5 * calculated efficiency @ refill event
  • Status NOx-Sensor Downstream=ready
  • Status NOx-Sensor Upstream=ready
  • urea dosing=active
  • Adaptation =not active
  • DPF regeneration=not active
  • SCR-Catalyst temp gradient (dep. on T6 EGT4 (upstream SCR)) <0.2 to 0.34K/s
  • SCR catalyst modeled temperature=240 to 350° C
  • Nox-concentration upstream<1500 ppm
  
  • continuous.
  • immed.
P208A Urea pump-open circuit Check the power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. deviation between nominal and actual control value > 0.75%   480 ms
  • Continuous
  • 2 DCY
P208C Urea pump-short to ground Check the power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. diagnostic signal from power stage permanently < 0.46 * U_Batt V   480 ms
  • Continuous
  • 2 DCY
P208D Urea pump-short to battery plus Check the power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. diagnostic signal from power stage permanently > 0.6 * U_Batt V   480 ms
  • Continuous
  • 2 DCY
P208E Urea pump-rationality check Check the power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. missing number of signal peaks >50 100 urea dosingactive 1000 s
  • Continuous
  • 2 DCY
P2080 Exhaust Gas Temperature Sensor Circuit Range/Performance -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . stuck high check
  • Temperature difference to > 60 K. TEGR, T4,, T4', T5, T6
stuck low check
  • mean value of modelled - measured EGT1 200 K or -200K
  • engine off time > 9 h
  • decrease of AAT and T2' < 5 K
  • at vehicle speed > 25 mph for > 20 s
  • decrease of ECT < 5 K for 60 s
 20 s continuous driving with velocity exceeding 25 mph
  • Once
  • 2 DCY
P2084 Exhaust Gas Temperature Sensor 2 Circuit Range/Performance -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . stuck high check
  • Temperature difference to > 60 K. TEGR, EGT1, Egt3, EGT4
stuck low check
  • mean value of modelled - measuredEGT2 > 100 K
    
  • Once
  • 2 DCY
P2096 Post Catalyst Fuel Trim System out of range high Bank 1 Bank 2 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • integral part of trim control, post cat > 10%
  • modeled cat temp., > 400.00 °C
  • trim control post cat closed loop
  • engine speed 640 to 4000 RPM
  • lambda control, closed loop
  • engine load 15 to 70%
  • Δ set value 0.985 to 1.005
  • delta engine speed < 7500 RPM
  • Δ mass air flow < 15 g/Rev
  • accelerator PP value < 1000%
  • mass air flow 9.4 to 528 kg/h
 120 s
  • Continuous
  • 2 DCY
P2097 Post Catalyst Fuel Trim System out of range low Bank 1 Bank 2 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • integral part of trim control, post cat < 10%
  • modeled cat temp., > 400.00 °C
  • trim control post cat closed loop
  • engine speed 640 to 4000 RPM
  • lambda control, closed loop
  • engine load 15 to 70%
  • Δ set value 0.985 to 1.005
  • delta engine speed < 7500 RPM
  • Δ mass air flow < 15 g/Rev
  • accelerator PP value < 1000%
  • mass air flow 9.4 to 528 kg/h
 120 s
  • multiple
  • 2 DCY
P2098 Post Catalyst Fuel Trim System out of range high Bank 1 Bank 2 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • integral part of trim control, post cat > 10%
  • modeled cat temp., > 400.00 °C
  • trim control post cat closed loop
  • engine speed 640 to 4000 RPM
  • lambda control, closed loop
  • engine load 15 to 70%
  • Δ set value 0.985 to 1.005
  • delta engine speed < 7500 RPM
  • Δ mass air flow < 15 g/Rev
  • accelerator PP value < 1000%
  • mass air flow 9.4 to 528 kg/h
 120 s
  • Continuous
  • 2 DCY
P2099 Post Catalyst Fuel Trim System out of range low Bank 1 Bank 2 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • integral part of trim control, post cat < 10%
  • modeled cat temp., > 400.00 °C
  • trim control post cat closed loop
  • engine speed 640 to 4000 RPM
  • lambda control, closed loop
  • engine load 15 to 70%
  • Δ set value 0.985 to 1.005
  • delta engine speed < 7500 RPM
  • Δ mass air flow < 15 g/Rev
  • accelerator PP value < 1000%
  • mass air flow 9.4 to 528 kg/h
 120 s
  • Continuous
  • 2 DCY
P208E SCR System Components Dosing valve- rationality -- Check theReduction Agent InjectorRefer to Reducing Agent Injector -N474-, CHECKING  missing number of signal peaks > 50
  • urea dosing active
  • ambient pressure = 700 to 1300 [hPa]
  • SCR urea pressure = 3500 to 6500 [hPa]
  • dosing valve coil temperature = 10 to 120 [°C]
 25 to 500 s
  • Continuous
  • 2 DCY
P20F4 Reductant Pump "A" Control Circuit High Check the power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. SCR-Adaption Value >= 1.79
  • adaption = completed
 1 Adaption
  • once per adaptation
  • Immediately
P20F5 Reductant Pump "A" Control Circuit Low Check the power and grounds to the Reduction Agent Tank Module. If all voltage and ground inputs to the module are present, Replace the Reduction Agent Tank Module assembly. adaptive value limit high SCR-Adaption Value <= 0.51
  • adaption = completed
 1 Adaption
  • once per adaptation
  • Immediately
P20E8 Reductant Pressure Too Low -- Check the Reduction Agent Pressure Sensor. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING 
  • 45 (Q7) attempts"3500 hPa
  • SCR system state = pressure control
 100 s
  • Continuous
  • 2 DCY
P20E9 Reductant Pressure Too High -- Check the Reduction Agent Pressure Sensor. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING 
  • pressure @ dosing end>500 Q7 [hPa]
  • SCR system state = pressure reduction
 10 s
  • Continuous
  • 2 DCY
P2BA7 NOx limits exceeded.Empty Reducing Agent Tank Refill with AdBlue® fluid and recheck system.
  • calculated urea tank level = 0
    
  • Continuous
  • 1 DCY
P2100 throttle valve actuator -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . open circuit
  • signal from power stage > 3.26 V and < 5.4 V
  • power stage commanded off
  • ignition off
 480 ms
  • Continuous
  • 2 DCY
P2101 Throttle Actuator "A" Control Motor Circuit Range/Performance -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . initialization error
  • signal no change
   ECU initialization time
  • Once
  • 2 DCY
P2102 Throttle Actuator "A" Control Motor Circuit Low -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . short to ground
  • signal from power stage <= 3.26 V
  • power stage commanded off
  • ignition off
 480 ms
  • Continuous
  • 2 DCY
P2103 Throttle Actuator "A" Control Motor Circuit High -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING . short to battery plus
  • signal from power stage > 1.5 V
  • and > 50 mA
 power stage commanded on 480 ms
  • Continuous
  • 2 DCY
P2106 Throttle Actuator Control System - Forced Limited Power -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING .
  • ECM power stage
 engine start completed 0.45 s
  • Continuous
  • 2 DCY
P2122 Throttle/Pedal Position Sensor/Switch "D" Circuit Low -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING . out of range low
  • signal voltage < 0.646 V
   200 ms
  • Continuous
  • 2 DCY
P2123 Throttle/Pedal Position Sensor/Switch "D" Circuit High -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING . out of range high
  • signal voltage > 4, 889 V
   200 ms
  • Continuous
  • 2 DCY
P2127 Throttle/Pedal Position Sensor/Switch "E" Circuit Low -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING . out of range low
  • signal voltage < 0.276 V
   200 ms
  • Continuous
  • 2 DCY
P2128 Throttle/Pedal Position Sensor/Switch "E" Circuit High -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING . out of range high
  • signal voltage > 2, 644 V
   200 ms
  • Continuous
  • 2 DCY
P2138 Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation -- Check the Throttle Position (TP) Sensor -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING . rationality check
  • signal voltage > 0.143 to.0.260 V
  • sensor 1 * 0.5 vs. sensor 2
  • sensor voltage sensor 1 * 0.5 > 0.445 V
  • sensor 2 > 0.445 V
  • limp-home mode inactive
  • 430 ms
  • Continuous
  • 2 DCY
P2146 Injection Valves -- Check the Fuel injectors -N30, N31, N32, N33-. Refer to FUEL INJECTORS, CHECKING . ECU internal error
  • diagnostic signal in power stage internal signal
  • injection condition = injection ON
 4 injections
  • Continuous
  • 2 DCY
P2147 Injector Circuit short to ground -- Check the Fuel injectors -N30, N31, N32, N33-. Refer to FUEL INJECTORS, CHECKING . signal current > 12 A
  • injector commanded on
 3 s
  • Continuous
  • 2 DCY
P2148 Injector Circuit short to b+ -- Check the Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . Signal current > 33 A
  • injector commanded on
 3 s
  • Continuous
  • 2 DCY
P2149 Fuel Injector Group B Supply Voltage Circuit / Short to ground -- Check the Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . Signal current >14.90 A
  • Engine speed >80 RPM
 0.5 s
  • Continuous
  • 2 DCY
P2150 Injector Circuit short to ground -- Check the Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . signal current > 12 A
  • injector commanded on
 3 s
  • Continuous
  • 2 DCY
P2151 Injector Circuit short to b+ -- Check the Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . Signal current > 33 A
  • injector commanded on
 3 s
  • Continuous
  • 2 DCY
P2152 Fuel Injector Group "C" Supply Voltage Circuit/Open -- Check the Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . ECU internal error
  • diagnostic signal in power stage internal signal
  • injection condition = injection ON
 4 injections
  • Continuous
  • 2 DCY
P2153 Injector Circuit short to ground -- Check the Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . signal current > 12 A
  • injector commanded on
 3 s
  • Continuous
  • 2 DCY
P2154 Injector Circuit short to b+ -- Check the Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING . Signal current > 33 A
  • injector commanded on
 3 s
  • Continuous
  • 2 DCY
P2181 Cooling System Performance -- Check Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor - G62-, CHECKING .-- Check the Coolant Pump -V50- Refer to the appropriate service manual.-- Check the Coolant Thermostat. Refer to the appropriate service manual..
  • ECT < 75 °C
  • mass air integral 3.5 to 24.0 kg
  • ECT at start, 7 to 57 °C
  • delta ambient pressure < 1.5 kPa
  • vehicle speed 19 to 75 mph
  • accumalated fuel cut-off < 120 s
  • mass air flow 50 to 200 kg/h
 500 s
  • once/DCY
  • 2 DCY
P2183 ECT Sensor 2 -- Check theEngine Coolant Temperature Sensor 2 -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING . stuck high check
  • Temperature difference to > ECT, 30 K
  • Temperature difference to > T2, FTS, 35 K
  • Temperature difference to > T1, 40 K
  
  • 20 s continuous driving with velocity exceeding 25 mph
  • once/DCY
  • 2 DCY
P2184 ECT Sensor 2 Engine coolant temperature (upstream engine) -- Check theEngine Coolant Temperature Sensor 2 -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING . short to ground
  • signal voltage < 224 mV
   480 ms
  • Continuous
  • 2 DCY
P2185 ECT Sensor 2 Engine coolant temperature (upstream engine) -- Check theEngine Coolant Temperature Sensor 2 -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING . open circuit or short to battery plus
  • signal voltage > 4921 mV
   480 ms
  • Continuous
  • 2 DCY
P2195 O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • measured oxygen concentration @fuel cut off > 25.6%
  • measured oxygen concentration @part load > calculated + 6.5 %
  • EGR valve = closed
  • heater control = active
  • DPF regeneration = not active
  • fuel cut off = active
  • air mass > 250 [mg/stroke
  • integrated air mass flow > 180 [g]
  • engine speed > 1100 [rpm
  • heater control = active
  • DPF regeneration = not active
  • fuel mass < 5.. 14 [mg/stroke
  • air mass = 200.. 370 [mg/stroke
  • integrated air mass flow > 180 [g]
  • engine speed = 630.. 850 [rpm
  • 5 to 10 s
  • 20 to 30 s
  • Continuous
  • 2 DCY
  • Continuous
P2196 O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • measured oxygen concentration @fuel cut off < 14.7 %
  • EGR valve = closed
  • heater control = active
  • DPF regeneration = not active
  • fuel cut off = active
  • air mass > 250 [mg/stroke
  • integrated air mass flow > 180 [g]
  • engine speed > 1100 rpm
  • 5 to 10 s
  • Continuous
  • 2 DCY
P2197 O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • lambda value > 1.1 V
  • modeled exhaust gas temp., 500.00 to 750.00 °C
  • ECT > 60 °C
  • exhaust gas mass flow, 20.00 to 180.00 kg/h
  • engine speed > 992 RPM
  • lambda control, closed loop
  • lambda control, post cat-closed loop
  • deviation engine speed < 150 Rev
  • engine load 30 to 300 kg/h
  • delta engine load > 0.15 g/Rev
  • lambda deviation < 3%
  • integrated mass air flow 150g
  • O2S signal rear > 0.852 V
  • deviation lambda control > 35%
  • 100 s
  • Continuous
  • 2 DCY
P2198 O2 Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • lambda value < 0.9 V
  • modeled exhaust gas temp., 500.00 to 750.00 °C
  • ECT > 60 °C
  • exhaust gas mass flow, 20.00 to 180.00 kg/h
  • engine speed > 992 RPM
  • lambda control, closed loop
  • lambda control, post cat-closed loop
  • deviation engine speed < 150 Rev
  • engine load 30 to 300 kg/h
  • delta engine load > 0.15 g/Rev
  • lambda deviation < 3%
  • integrated mass air flow 150g
  • O2S signal rear < 0.049 V
  • deviation lambda control < 35%
  • 100 s
  • Continuous
  • 2 DCY
P2200 NOx Sensor Bank 1, Sensor 1 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING .
  • internal malfunction criteria in the sensor control module and error bit to engine control module
  • NOx sensor status ratio (false/total time) > 0.5
  • exhaust temperature upstream SCR (T4) = 100 to 600° C
  • dew point = exceeded
  • measured A/F ratio (O2S) > 1
  • Nox control = first activation
  • or forced activation>300s
  • exhaust temperature upstream SCR (T4) 100 to 600° C
  • steady state condition (actual-filtered A/F ratio (O2S)) < 0 to 0.2 for > 5 s
  • 2 s
  • 3*15 s
  • Continuous
  • 2 DCY
P2201 NOx Sensor (upstream) -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING . dynamic check
  • Nox 70% to Nox 40% time > 5 s
  • or 40% value is not reached within > 7 s
rationality check
  • ratio > 3
  • (measured Nox value/calculated Nox value)-1
rationality check
  • or < -0.75
  • Air mass =200 to 365mg/stroke
  • NOX sensor heater control = active
  • ambient temperature=-7 to 50° C
  • T3 EGT1 (exhaust gas temperature upstream NMHC catalyst)>80° C
  • DPF regeneration = not active
  • time since last DPF regeneration>60 s
  • ECT>65° C
  • fuel quantity= 6 to 14 mg/stroke
  • engine speed 600 to 850 RPM
  • EGR sensor position=70 to 93 %
  • calculated Nox-Value=75 to 250 ppm
  • Time since engine start>120s
  • Air mass =200 to 365mg/stroke
  • NOX sensor heater control = active
  • ambient temperature=-7 to 50° C
  • T3 EGT1 (exhaust gas temperature upstream NMHC catalyst)>80° C
  • DPF regeneration = not active
  • time since last DPF regeneration>60 s
  • ECT>65° C
  • fuel quantity= 9..20 mg/stroke
  • engine speed 600 to 850 RPM
  • EGR sensor position=70 to 93 %
  • calculated Nox-Value=75 to 250 ppm
  • Time since engine start>120s
 6 s
  • Continuous
  • 2 DCY
P2201 NOx-Sensor Bank 1, Sensor 1 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING . NOx Offset value max
  • average NOx Offset value > 50 ppm
NOx Offset value min
  • average NOx Offset value < -30 ppm
  • fuel cut off = active
  • integrated air mass >300 to 1000 g
  • engine speed = 1000 to 3500 RPM
  • dew point = exceeded
  • exhaust temperature upstream SCR (T4) = 100 to 600° C
  • engine operation mode = normal
  • NOx control = active
 11 s
  • Multiple
  • 2 DCY
P2202 NOx-Sensor Bank 1, Sensor 1 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING . NOx value < 105 ppm
  • dew point = exceeded
  • NOx control = active
 2 s
  • Continuous
  • 2 DCY
P2203 NOx-Sensor Bank 1, Sensor 1 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING . NOx value > 1655 ppm
  • dew point = exceeded
  • NOx control = active
 2 s
  • Continuous
  • 2 DCY
P2209 NOx-Sensor Heater, Bank 1, Sensor 1 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING .
  • NOx control = not active after > 400 s
  • exhaust temperature upstream SCR (T4) = 100 to 600° C
  • dew point = exceeded
 1 s
  • Once
  • 2 DCY
P2227 Turbocharger/Supercharger Boost Sensor A Plausibility check. -- Check the Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING .-- Check the charge air system for proper seal. Refer to appropriate service manual.
  • press. diff. in cross check between boost press. sensor 1/2; IM press., abient press. >7 kPa
  • engine speed 0 RPM
  • time after engine stop 10 s
 3 s
  • Continuous
  • 2 DCY
P2231 O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1 -- Check the Oxygen Sensor Heater -Z19-. Refer to Oxygen Sensor Heater -Z19-, CHECKING . Delta O2S signal front, > 190uA
  • Engine speed, <2700 RPM
  • engine load, <60%
  • heater duty cycle, 20.0 to 80.0%
  • Modeled exhaust, <800.1 °C
  • lambda set value READ ERROR
  • lambda, 0.95 to 1.05
  • O2S Heater no fault
 15 s
  • multiple
  • 2 DCY
P2237 O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • measured oxygen concentration < 0.005 -
  • fuel cut off = not active
  • time since last fuel cut off > 30 s
  • calibration of internal resistance or O2 signal = not active
  • modeled O2 concentration > 0.067 for = 5 s
  • O2 heater temperature > 720° C < 840° C
  • dew point = exceeded
  • reference pump current = active
  • oxygen pump current = active
  • engine operation mode = normal for > 200 ms
  • regeneration = not active
  • 2 s
  • Continuous
  • 2 DCY
P2240 O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • signal activity check-failed
  • O2S front- no other faults
  • 35 s
  • Continuous
  • 2 DCY
P2243 O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • internal resistance voltage > 3 V
  • AND oxygen signal < -1.3 V
  • or > 1.5 V
  • fuel cut off = not active
  • time since last fuel cut off > 30 s
  • calibration of internal resistance or O2 signal = not active
  • heater control = active for > 10 s
  • dew point = exceeded
 2 s
  • Continuous
  • 2 DCY
P2247 O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • functional check heater failed
  • AND
  • intrusivive check temperature measurement failed
   35 s
  • Continuous
  • 2 DCY
P2251 O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING . Circuit Continuity Check
  • internal resistance voltage > 3 V
  • AND
  • oxygen signal > -0.1 V
  • and < 0.1 V
  • fuel cut off = not active
  • time since last fuel cut off > 30 s
  • calibration of internal resistance or O2 signal = not active
  • heater control = active for > 10 s
  • dew point = exceeded
 2 s
  • continuous
  • 2 DCY
P2254 O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • functional check heater failed
  • AND
  • signal activity check failed
  • fuel cut off = not active
  • time since last fuel cut off > 30 s
  • calibration of internal resistance or O2 signal = not active
  • heater control = active for > 10 s
  • dew point = exceeded
 45 s
  • continuous
  • 2 DCY
P2263 Turbocharger/Supercharger Boost System Performance -- Check theTurbocharger/Supercharger Boost System. Refer to Turbocharger Control Module 1 -J724-, CHECKING . stuck boost pressure valve
  • control deviation > 8 %
   3100 ms
  • Continuous
  • 2 DCY
P2279 boost pressure hose leakage -- Check the Charge Air Pressure Sensor -G31- Refer to Charge Air Pressure Sensor -G31- /Intake Air Temperature Sensor -G42-, CHECKING  functional check by modeled air mass flow
  • ratio of measured and modeled air mass flow < 0.45
  • engine speed 1700..4000 RPM
  • ambient pressure > 50 kPa
  • boost pressure < 200 [kPa]
  • fuel quantity > 0 [mg/Str]
  • difference between boost pressure and ambient pressure<6 to 12 kPa
  • depended on ECT=-40 to 0°
  • otherwise<12KPa
 3 s
  • Continuous
  • 2 DCY
P2293 Fuel Pressure Regulator 2 Performance -- Check the Fuel Pressure Regulator Metering Valve 2 -N290-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .
  • difference between target pressure vs. actual pressure, >1.50mPa
  • difference between target pressure vs. actual pressure, < -1.50 mPa
  • time after engine start, 10.0 s
  • fuel cut off, not active
 3.5 s
  • multiple
  • 2 DCY
P2294 Fuel Pressure Regulator 2 Control Circuit -- Check the Fuel Pressure Regulator Metering Valve 2 -N290-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . power stage voltage>2.97 < 4.7 V
  • output stage=signal high
 290 s
  • Continuous
  • 2 DCY
P2295 Fuel Pressure Regulator 2 Control Circuit Low -- Check the Fuel Pressure Regulator Metering Valve 2 -N290-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . power stage voltage<2.97 V
  • output stage=signal high
 290 s
  • Continuous
  • 2 DCY
P2296 Fuel Pressure Regulator 2 Control Circuit High -- Check the Fuel Pressure Regulator Metering Valve 2 -N290-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . power stage current>3A
  • output stage=signal low
 220 s
  • Continuous
  • 2 DCY
P229E NOx-Sensor Bank 1, Sensor 2 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING .
  • internal malfunction criteria in the sensor control module and error bit to engine control module
  • NOx sensor status ratio (false/total time) > 0.5 s
  • exhaust temperature upstream SCR (T6) = 100 to 600 ° C
  • dew point = exceeded
  • measured A/F ratio (O2S) > 1
  • Nox control = first activation
  • or forced activation>300s
  • dew point = exceeded
  • exhaust temperature upstream SCR (T6) 100 to 600
  • steady state condition (actual-filtered A/F ratio (O2S)) < 0 to 0.2 for > 5 s
  • 2 s
  • 3.15 s
  • multiple
  • 2 DCY
P229F NOx Sensor Circuit Range/Performance Bank 1 Sensor 2 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING .
  • Average NOx Offset value > 50 ppm
  • average NOx Offset value <-30ppm
  • fuel cut off=active
  • integrated air mass >300 to 1000g
  • Engine speed 1000 - 3500 rpm
  • dew point=exceeded
  • exhaust temperature upstream SCR (T6 EGT4)=100 to 600° C
  • engine operation mode=normal
  • NOx control=active
  • modeled SCR temperature<50 to 500°
  • for>60 s
  • modeled ammonia load in SCR<0.6 g
  • for>30 s
 11 s
  • Continuous
  • 2 DCY
P22A0 NOx-Sensor Bank 1, Sensor 2 Sensor low -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING . NOx value < - 105 -101 ppm
  • dew point = exceeded
  • NOx control = active
 2 s
  • continuous
  • 2 DCY
P22A1 NOx-Sensor Bank 1, Sensor 2 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING . NOx value > 1655 ppm
  • dew point = exceeded
  • NOx control = active
 2 s
  • continuous
  • 2 DCY
P22A7 NOx-Sensor Heater, Bank 1, Sensor 2 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING .
  • NOx control = not active
  • after > 400 s
  • exhaust temperature upstream SCR (T6) = 100 to 600° C
  • dew point = exceeded
 1 s
  • Once
  • 2 DCY
P220A NOx-Sensor Heater, Bank 1, Sensor 1 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING .
  • battery voltage - sensor supply voltage > 1.5 V
  • sensor supply voltage < 12 V
  • dew point = exceeded
  • exhaust temperature upstream SCR (T4 EGT2)100 to 600° C
 2 s
  • continuous
  • 2 DCY
P220B NOx-Sensor Heater, Bank 1, Sensor 2 -- Check theNOx Sensor Module --. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING .
  • battery voltage - sensor supply voltage > 1.5 V
  • sensor supply voltage < 12 V
  • dew point = exceeded
  • exhaust temperature upstream SCR (T4 EGT2)100 to 600° C
 2 s
  • continuous
  • 2 DCY
P2414 O2 Sensor Exhaust Sample Error Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • O2S signal front > 3.1 V
  • lambda control active
  • engine torque positive
  • engine speed no idle
  • 25 s
  • Continuous
  • 2 DCY
P2415 O2 Sensor Exhaust Sample Error Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • O2S signal front > 3.1 V
  • O2S signal front > 3.1 V
  • 25 s
  • Continuous
  • 2 DCY
P2425 Exhaust Gas Recirculation Cooling Valve Control Circuit Open -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooler Switch-Over Valve 2 -N381-, CHECKING . open circuit
  • signal from power stage < 4.7 V
 power stage = OFF State 480 ms
  • Continuous
  • 2 DCY
P2426 Exhaust Gas Recirculation Cooling Valve Control Circuit Low -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooler Switch-Over Valve 2 -N381-, CHECKING . short to ground
  • signal from power stage < 2.97 V
 power stage = OFF State 480 ms
  • Continuous
  • 2 DCY
P2427 Exhaust Gas Recirculation Cooling Valve Control Circuit High -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooler Switch-Over Valve 2 -N381-, CHECKING . short to battery
  • signal from power stage > 2.2 A
 power stage = ON State 480 ms
  • Continuous
  • 2 DCY
P2452 Diesel Particulate Filter Differential Pressure Sensor Circuit -- Check theExhaust Pressure Sensor --. Refer to Differential Pressure Sensor -G505-, CHECKING . short to battery plus
  • sensor voltage > 4.9 V
   480 ms
  • Continuous
  • 2 DCY
P2453 Diesel Particulate Filter Differential Pressure Sensor Circuit Range/Performance -- Check theExhaust Pressure Sensor --. Refer to Differential Pressure Sensor -G505-, CHECKING .
  • Pressure drop > 3 kPa or < -3 kPa
  • engine off
  • 480 ms
  • Once
  • 2 DCY
P2454 Diesel Particulate Filter Differential Pressure Sensor Circuit Low -- Check theExhaust Pressure Sensor --. Refer to Differential Pressure Sensor -G505-, CHECKING . short to ground
  • sensor voltage < 0.2 V
   480 ms
  • Continuous
  • 2 DCY
P2458 monitoring of incomplete regeneration -- Check theExhaust Pressure Sensor --. Refer to Differential Pressure Sensor -G505-, CHECKING . time of regeneration duration > 3600 s regeneration =active 1 to 3600 s during DPF regeneration/ 2DCY
P2459 "monitoring of Regeneration frequency by comparison of measured and modelled soot mass" -- Check theExhaust Pressure Sensor --. Refer to Differential Pressure Sensor -G505-, CHECKING . measured soot mass >f(volumetric flow rate)g
  • last regeneration=successful
  • actual regeneration=triggered
   during DPF regeneration/ 2DCY
P2463 Diesel Particulate Filter - Soot Accumulation Service Bay Regeneration must be performed using a VAS 5052 (available for rental) or equivalent scan tool soot mass exceeds maximum value
  • calculated DPF loading > 40 g
   0.2 s
  • Continuous
  • 2 DCY
P2470 Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 4 -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . short to ground
  • signal voltage < 678 mV
   480 ms
  • Continuous
  • 2 DCY
P240F EGR Slow Response -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Valve 1 -GX5- / EGR Motor -V338- / EGR Potentiometer -G212-, CHECKING .
  • calculated characteristical value >70 (for positive gradients of desired air mass flow)
  • calculated characteristical value >50 (for negative gradients of desired air mass flow)
  • engine speed=1100 to 3000 RPM
  • fuel quantity=6 to 40mg/str
  • ambient pressure>74.5 kPa
  • engine coolant temperature>50° C
  • ambient temperature>-7° C
  • EGR valve=15 to 95 %
  • desired air mass<800mg/str
  • DPF regeneration mode=off
 2 X 15 s
  • Multiple
  • 2 DCY
P242A Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3 -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . short to battery plus or open circuit
  • signal voltage > 2606 mV
   480 ms
  • Continuous
  • 2 DCY
P242B Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3 Range/Performance -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . stuck high check
  • Temperature difference to TEGR, EGT!, EGT2, EGT4, > 60 K
stuck low check
  • mean value of modelled - measured EGT3, > 100 K
   500 s
  • Continuous
  • 2 DCY
P242C Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3 -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . short to ground
  • signal voltage < 678 mV
   480 ms
  • Continuous
  • 2 DCY
P244C Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 1 If no Exhaust Temperature Sensor codes are set, a Service Bay Regeneration should be performed using a VAS 5052 (available for rental) or equivalent scan tool Minimum of exhaust gas temperature (T5) not reached within a certain time interval
  • time to closed loop<120 to 300 s
  • T5 EGT3<350° C
  • engine speed > 1000 RPM
  • fuel mass > 15 mg/stroke
  • regeneration mode with post injection = on
  • gradient of accelerator pedal position<12% / s
 10 - 300 s.
  • Immediate
P245B EGR Cooler Performance Main cooler -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooler Switch-Over Valve 2 -N381-, CHECKING . measured temperature gradient < 0.8
  • engine speed = 900.. 2000 RPM
  • delta engine speed = +-350 RPM
  • fuel quantity = 6 to 26 mg/Str
  • delta fuel quantity = +-10 mg/Str
  • EGR valve > 0 to 88 %
  • delta EGR valve = +-50 %
  • EGR mass flow > 24 to 65 kg/h
  • SCR temperature (T6) > 150° C
  • EGR temperature < 300 °C
  • time since engine start > 450 s
 11 s
  • Once
  • 2 DCY
P246E Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 4 -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING . short to battery plus or open circuit
  • signal voltage > 2606 mV
   480 ms
  • Continuous
  • 2 DCY
P246F Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 4 Range/Performance -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING .
  • Temperature difference to TEGR, EGT1, EGT2, EGT3, T6 > 60 K
OR
  • Mean value of modeled - measured EGT4 > 100 K
   500 s
  • Continuous
  • 2 DCY
P247A Exhaust Gas Temperature Out of Range Bank 1 Sensor 3 -- Check theExhaust Gas Temperature Sensor --. Refer to EXHAUST GAS TEMPERATURE SENSORS 1- 4, CHECKING .
  • control deviation (T5 EGT3)>200K
  • control deviation (T5 EGT3)<-100K
  • engine speed>1000 RPM
  • Fuel mass > 10 mg/stroke
  • Regeneration with post injection = On
  • Temperature controller set value > 90 %
  • EGT3 > 350 °C
  • Temperature change T5 (absolute value) < 3 °K/s.
  • gradient of accelerator pedal position<12% / s
  • Regeneration with post injection = On
  • Temperature controller set value < 10%
  • Fuel mass > 10 mg/stroke
  • Engine speed > 1000 RPM
  • EGT3 > 350 °C
  • temperature change T5 EGT3 (absolute value)<3K/s
 50 s
  • during DPF regeneration
  • immed.
P2564 Turbocharger Boost Control Position Sensor Circuit Low -- Check theTurbocharger Control Module --. Refer to Turbocharger Control Module 1 -J724-, CHECKING . out of range low
  • position sensor signal<150 mV
   1300 ms
  • Continuous
  • 2 DCY
P2565 Turbocharger Boost Control Position Sensor Circuit High -- Check theTurbocharger Control Module --. Refer to Turbocharger Control Module 1 -J724-, CHECKING . Sensor signal voltage > 4.85 V   480 ms
  • Continuous
  • 2 DCY
P2626 O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • O2S signal front > 4.7 V
  • Modeled exhaust temp, > 380 °C
  • Fuel cut off, > 2 s
  • 4 s
  • Continuous
  • 2 DCY
P2629 O2 Sensor Pumping Current Trim Circuit/Open Bank 2 Sensor 1 -- Check the Heated Oxygen Sensor -G39-. Refer to Heated Oxygen Sensor -G39-, CHECKING .
  • O2S signal front > 4.7 V
  • Modeled exhaust temp, > 380 °C
  • Fuel cut off, > 2 s
 4 s
  • Continuous
  • 2 DCY
P2632 Fuel Pump "B" Control Circuit Open -- Check theAuxiliary Fuel Pump -V393-. Refer to Auxiliary Fuel Pump -V393-, CHECKING  diagnostic signal from power stage > 4.5 V power stage = OFF 0.29 s
  • Continuous
  • 2 DCY
P2633 Fuel Pump "B" Control Circuit Low -- Check theAuxiliary Fuel Pump -V393-. Refer to Auxiliary Fuel Pump -V393-, CHECKING  Grounded circuit diagnostic signal from output driver power stage = OFF 480 ms
  • Continuous
  • 2 DCY
P2634 Fuel Pump "B" Control Circuit High -- Check theAuxiliary Fuel Pump -V393-. Refer to Auxiliary Fuel Pump -V393-, CHECKING  diagnostic signal from power stage > 2.7 A Power stage = On 480 ms
  • Continuous
  • 2 DCY
P261A Coolant Pump "B" Control Circuit High -- Check theEGR Cooler Pump --. Refer to EGR Cooler Pump -V400-, CHECKING . open circuit signal voltage < 4.8 to 5.3 V
  • pump speed = 50 to 90 %
  • coolant temperature before EGR cooler >-10° C
 480 ms
  • Continuous
  • 2 DCY
P261C Coolant Pump "B" Control Circuit High -- Check theEGR Cooler Pump --. Refer to EGR Cooler Pump -V400-, CHECKING . short to ground signal voltage < 3 V
  • pump speed = 50 to 90 %
  • coolant temperature before EGR cooler >-10° C
 480 ms
  • Continuous
  • 2 DCY
P261D Coolant Pump "B" Control Circuit High -- Check theEGR Cooler Pump --. Refer to EGR Cooler Pump -V400-, CHECKING . short to battery plus signal voltage > 2.2 to 4.0 A
  • pump speed = 50 to 90 %
  • coolant temperature before EGR cooler >-10° C
 480 ms
  • Continuous
  • 2 DCY
P308D Fuel Pump Control Unit Refer to the appropriate shop manual for service Signal current>35 A ignition =on 1.2 s
  • Continuous
  • 2 DCY
P308E Fuel Pump Control Unit Refer to the appropriate shop manual for service temperature >129° C ignition =on 2.2 s
  • Continuous
  • 2 DCY
P3081 Engine Temperature Too Low -- Check Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor - G62-, CHECKING . step 1
  • modeled ECT > 30 °C
  • AND
  • ECT < 30 °C
and
  • modeled ECT> 30 °C
  • ECT < 25 °C
 ECT < 60 °C 2 s
  • Continuous
  • 2 DCY
P310E Exhaust gas recirculation cooler bypass valve 2 Implausible signal -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooler Switch-Over Valve 2 -N381-, CHECKING . Measured temperature < 0.8
  • engine speed = 900.. 2000 RPM
  • delta engine speed = +-350 RPM
  • fuel quantity = 6 to 26 mg/Str
  • delta fuel quantity = +-10 mg/Str
  • EGR valve > 0 to 88 %
  • delta EGR valve = +-50 %
  • EGR mass flow > 24 to 65 kg/h
  • SCR temperature (T6) > 150° C
  • EGR temperature < 300 °C
  • time since engine start > 450 s
 11 s
  • Once
  • 2 DCY
P3348 Activation turbocharger control unit bank 1 Electrical malfunction in circuit -- Check theTurbocharger Control Module --. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
  • power stage current>8 to 18 A
 power stage = ON State 480 ms
  • Continuous
  • 2 DCY
U0001 CAN: CAN-Bus -- Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING . reading back sent message
  • CAN message no feedback
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 250 ms
  • Continuous
  • 2 DCY
U0002 CAN communication check -- Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING . global time out receiving no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
  • 450 ms
  • Continuous
  • 2 DCY
U0028 reading back sent message -- Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING . CAN message no feedback
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 250 ms
  • Continuous
  • 2 DCY
U0029 CAN: CAN-Bus -- Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING . Global time out. Receiving no messages.
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 450 ms
  • Continuous
  • 2 DCY
U0100 Lost Communication with ECM/PCM A -- Check the CAN-Bus terminal resistance. Refer to TCM TO ECM CAN BUS TERMINAL RESISTANCE, CHECKING .
  • Failure of all CAN engine messages, Time out more than 500 ms
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 > 500 ms
  • Continuous
  • 2 DCY
U0101 CAN communication with TCM -- Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING . CAN message from TCUno message
  • time after ignition on>" 500 " ms
  • battery voltage= 9.5 - 16.5 V
 500 ms
  • Continuous
  • 2 DCY
U0106 CAN communication with NOX-Sensor -- Check the NOx Sensor. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING  CAN message from NOX1 no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 > 500 ms
  • Continuous
  • 2 DCY
U0101 Lost Communication with TCM Check TCM communication with a scan tool. If no TCM communication with scan tool and all other modules communicate, check TCM power and grounds. If OK, replace TCM Module.
  • CAN message from TCU no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 > 500 ms
  • Continuous
  • 2 DCY
U0121 CAN: Brake Unit -- Check the CAN-Bus terminal resistance between the ECM and the ABS Control Module. Refer to CAN BUS TO ABS CONTROL MODULE, CHECKING . CAN communication with Brake Unit
  • CAN message from Brake Unit no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 > 500 ms
  • Continuous
  • 2 DCY
U0140 CAN gateway Check BCM communication with a scan tool. If no BCM communication with scan tool and all other modules communicate, check BCM power and grounds. If OK, replace BCM Module. CAN message from Body Computer Module no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 1000 ms
  • Continuous
  • 2 DCY
U0145 CAN: Brake Unit Refer to the Repair Manual for ABS diagnosis. CAN communication with Brake Unit
  • data from Brake Unit implausible message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 60 ms
  • Continuous
  • 2 DCY
U0146 CAN gateway If only 1 module has set this code, the gateway is operational and the fault will be with the module that set the code. Check module power and grounds. If OK, replace module. CAN message from Gateway no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 1000 ms
  • Continuous
  • 2 DCY
U0155 CAN communication with Instrument Cluster Check IPC communication with a scan tool. If no IPC communication with scan tool and all other modules communicate, check IPC power and grounds. If OK, replace IPC Module. CAN message from Instrument Cluster Module no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 2000 ms
  • Continuous
  • 2 DCY
U0302 Software Incompatibility with Transmission Control Module Check for correct software in ECM and TCM. If software is incorrect, reflash module with correct software MT vehicle ECM coded as AT vehicle
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 100 ms
  • Continuous
  • 2 DCY
U0323 CAN: Instrument cluster Audi only Check IPC software for correct version. Reflash if necessary Instrument Cluster wrong coded
  • error bit = set 2 s
  • communication time after T15 "on" > 1
 2 s
  • Continuous
  • 2 DCY
U0402 CAN communication with TCM May have VIN error or incorrect software. Check VIN and software number for correct data. invalid data received from TCM
  • implausible message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 60 ms
  • Continuous
  • 2 DCY
U0404 Invalid Data Received From Gear Shift Control Module May have VIN error or incorrect software. Check VIN and software number for correct data.
  • If the value of message counter is permanent, constant, or change exceeds a threshold, increment an event counter
  • maximum change of message counter > 5
  • No failure of selector lever CAN messages
  • Terminal 15 voltage > 4 V for more than 500 ms
 50 ms
  • Continuous
  • 2 DCY
U0415 Invalid Data Received From Anti-Lock Brake System Control Module -- Check the CAN-Bus terminal resistance between the ECM and the ABS Control Module. Refer to CAN BUS TO ABS CONTROL MODULE, CHECKING .
  • Error bit = set
  • Implausible data from ABS
OR
  • Speed sensor signal = 325 km/h
  • time after ignition on> 500 ms
  • battery voltage= 9.5 - 16.5 V
 50 s.
  • Continuous
  • 2 DCY
U0422 CAN: Instrument cluster May have VIN error. Check VIN in each module for correct data ambient temp. value (initialization), Audi, 01h
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 2.0 s
  • Continuous
  • 2 DCY
U0423 CAN communication with Instrument Cluster May have VIN error. Check VIN in each module for correct data Error message sent from instrument cluster = invalid data
  • communication time after T15 "on">1 s
 600 ms
  • Continuous
  • 2 DCY
U0447 CAN communication with Gateway -- Check the CAN-Bus terminal resistance. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING . data received from Gateway implausible message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 300 ms
  • Continuous
  • 2 DCY
U1006 CAN communication with NOX-Sensor -- Check the NOx Sensor. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING  CAN message from NOX1no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 500 ms
  • Continuous
  • 2 DCY
U1024 Ambient Air Temperature May have VIN error. Check VIN in each module for correct data Instrument Cluster wrong coded
  • error bit=set
 communication time after T15 "on">1 480 ms
  • Continuous
  • 2 DCY
U1034 CAN communication with NOX-Sensor -- Check the NOx Sensor. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING  data rom NOX1 implausible message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 60 ms
  • Continuous
  • 2 DCY
U1035 NOx Sensor 1 Bank 2 Implausible signal -- Check the NOx Sensor. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING  data from NOX2 implausible message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 60 ms
  • Continuous
  • 2 DCY
U1036 NOx Sensor 1 Bank 2 No Communication -- Check the NOx Sensor. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING  CAN message from NOX2 no message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
 > 500 ms
  • Continuous
  • 2 DCY
U101C CAN: NOX -- Check the NOx Sensor. Refer to NOX SENSOR CONTROL MODULE 1 - 2, CHECKING  data from NOX2implausible message
  • time after ignition on > 500 ms
  • battery voltage = 9.5 - 16.5 Volt
    
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.