P0101

Factory Manual References

Factory service manual diagnostic procedure for 1999 audi a6

Diagnostic Trouble Codes (DTC) Index

DTC INDEX - 2.8L (AHA & ATQ ENGINES)

SAE Code VAG Code Code Description Corrective Action
P0101 16485 Mass Air Flow (MAF) sensor -G70-
Implausible signal
P0102 16486 Mass Air Flow (MAF) sensor -G70-
Signal too small
P0103 16487 Mass Air Flow (MAF) sensor -G70-
Signal too large
P0112 16496 Intake Air Temperature (IAT) sensor -G42-
Signal too small
P0113 16497 Intake Air Temperature (IAT) sensor -G42-
Signal too large
P0116 16500 Engine Coolant Temperature (ECT) sensor -G62-
Implausible signal
P0117 16501 Engine Coolant Temperature (ECT) sensor -G62-
Signal too small
P0118 16502 Engine Coolant Temperature (ECT) sensor -G62-
Signal too large
P0121 16505 Throttle/Pedal Pos. Sensor A Circ.
Range/Performance
P0122 16506 Throttle/Pedal Pos. Sensor A Circ.
Low Input
P0123 16507 Throttle/Pedal Pos. Sensor A Circ.
High Input
P0130 16514 Bank 1, sensor 1
Electrical malfunction in circuit
P0131 16515 Bank 1, sensor 1
Voltage too low
P0132 16516 Bank 1, sensor 1
Voltage too high
P0133 16517 Bank1, Sensor 1
Signal too slow
P0134 16518 Bank 1, sensor 1
No activity
P0136 16520 Bank1, Sensor 2
Electrical malfunction in circuit
P0137 16521 Bank1, Sensor 2
Voltage too low
P0138 16522 Bank1, Sensor 2
Voltage too high
P0139 16523 Bank1, Sensor 2
Signal too slow
P0140 16524 Bank1, Sensor 2
No activity
P0150 16534 Bank 2, sensor 1
Electrical malfunction in circuit
P0151 16535 Bank 2, sensor 1
Voltage too low
P0152 16536 Bank 2, sensor 1
Voltage too high
P0153 16537 Bank 2, sensor 1
Signal too slow
P0154 16538 Bank 2, sensor 1
No activity
P0156 16540 Bank 2, sensor 2
Electrical malfunction in circuit
P0157 16541 Bank 2, sensor 2
Voltage too low
P0158 16542 Bank 2, sensor 2
Voltage too high
P0159 16543 Bank 2, sensor 2
Signal too slow
P0160 16544 Bank 2, sensor 2
No activity
Note on misfire malfunctions:Β  For malfunctions that may be caused by low fuel volume (i.e. combustion misfire), a low-fuel malfunction (DTC P1250) is also stored when there is less than 2 gallon of fuel remaining in the tank.
P0219 16603 Maximum engine speed exceeded
  • Repair mechanical damage
P0300 16684 Combustion misfire detected
  • Check spark plugs and ignition wires with connector




  • Fill fuel tank with fuel

  • Check hose setup of crankcase ventilation for secure seating and proper seal.
P0301 16685 Cyl. 1 combustion misfire detected
P0302 16686 Cyl. 2 combustion misfire detected
P0303 16687 Cyl. 3 combustion misfire detected
P0304 16688 Cyl. 4 combustion misfire detected
P0305 16689 Cyl. 5 combustion misfire detected
P0306 16690 Cyl. 6 combustion misfire detected
P0321 16705 Engine Speed (RPM) sensor -G28-
Implausible signal

P0322 16706 Engine Speed (RPM) sensor -G28-
No signal
P0327 16711 Knock Sensor (KS) 1 -G61-
Signal too small
P0328 16712 Knock Sensor (KS) 1 -G61
Signal too large
P0332 16716 Knock Sensor (KS) 2 -G66-
Signal too small
P0333 16717 Knock Sensor (KS) 2 -G66-
Signal too large
P0341 16725 Camshaft Position (CMP) sensor -G40-
Implausible signal
P0346 16730 Camshaft Position (CMP) sensor -G163-
Implausible signal
P0411 16795 Sec. Air Inj. Sys.
Incorrect Flow Detected
P0420 16804 Catalytic converter system, bank 1,
Not effective enough
P0421 16805 Primary catalytic converter, bank 1,
Not effective enough
P0422 16806 Main Catalyst, Bank1
Efficiency Below Threshold
P0430 16814 Catalytic converter system, bank 2,
Not effective enough
P0431 16815 Primary catalytic converter, bank 2,
Not effective enough
P0432 16816 Main Catalyst, Bank2
Efficiency Below Threshold
P0441 16825 Tank ventilation system
Throughput faulty
P0442 16826 Tank ventilation system
Small leak detected
  • Checking fuel supply and ventilation systems for leaks

See EVAP CANISTER SYSTEM .
P0455 16839 Tank ventilation system
Large leak detected
P0456 16840 Tank ventilation system
Pinhole leak detected
P0501 16885 Vehicle speed signal
Implausible signal
P0506 16890 Idle control
Engine speed below specified value

  • Check hose setup (intake manifold change-over valve and Secondary Air Injection - AIR- solenoid valve); check intake system for leaks (unmetered air). See INTAKE AIR SYSTEM, CHECKING FOR LEAKS (UNMETERED AIR) .
  • Check hose setup of crankcase ventilation for secure seating and proper seal.
P0507 16891 Idle control
Engine speed above specified value
P0560 16944 Voltage supply
Implausible signal
P0562 16946 Voltage supply
Voltage too low
P0563 16947 Voltage supply
Voltage too high
P0571 16955 Brake light switch -F-
Implausible signal
P0601 16985 Control module faulty
P0604 16988 Control module faulty
P0605 16989 Control module faulty
P1102 17510 Bank 1, sensor 1, heating circuit
Short circuit to B+
P1105 17513 Bank 2, sensor 1, heating circuit
Short circuit to B+
P1107 17515 Bank 2, sensor 1, heating circuit
Short circuit to B+
P1110 17518 Bank 2, sensor 2, heating circuit
Short circuit to B+
P1111 17519 Oxygen sensor control, bank 1
System too lean
  • Check oxygen sensor control before catalytic converter. See OXYGEN SENSOR CONTROL, CHECKING .
  • Check hose setup of crankcase ventilation for secure seating and proper seal.
P1112 17520 Oxygen sensor control, bank 1
System too rich
P1113 17521 Bank 1, sensor 1
Internal resistance too large
P1114 17522 Bank 1, sensor 2
Internal resistance too large
  • Next check signal wires for contact resistance. See TESTING OXYGEN SENSOR WIRES . If there are no contact resistances: Replace oxygen sensor.
P1115 17523 Bank 1, sensor 1, heating circuit
Short circuit to Ground (GND)
P1116 17524 Bank 1, sensor 1, heating circuit
Open circuit
P1117 17525 Bank 2, sensor 1, heating circuit
Short circuit to Ground (GND)
P1118 17526 Bank 2, sensor 1, heating circuit
Open circuit
P1119 17527 Bank 2, sensor 1, heating circuit
Short circuit to Ground (GND)
P1120 17528 Bank 2, sensor 1, heating circuit
Open circuit
P1121 17529 Bank 2, sensor 2, heating circuit
Short circuit to Ground (GND)
P1122 17530 Bank 2, sensor 2, heating circuit
Open circuit
P1127 17535 Bank 1, mixture adaptation (mult.)
System too rich


P1128 17536 Bank 1, mixture adaptation (mult.)
System too lean
P1129 17537 Bank 2, mixture adaptation (mult.)
System too rich
P1130 17538 Bank 2, mixture adaptation (mult.)
System too lean
P1131 17539 Bank 2, sensor 1
Internal resistance too large
  • Next check signal wires for contact resistance Page 24-100; if there are no contact resistances: Replace oxygen sensor
P1136 17544 Bank 1, mixture adaptation (add.)
System too lean


P1137 17545 Bank 1, mixture adaptation (add.)
System too rich
P1138 17546 Bank 2, mixture adaptation (add.)
System too lean
P1139 17547 Bank 2, mixture adaptation (add.)
System too rich
P1140 17548 Bank 2, sensor 2
Internal resistance too large
P1141 17549 Load detection
Implausible value
P1142 17550 Load detection
Limit not reached
P1143 17551 Load detection
Limit exceeded
P1147 17555 Oxygen sensor control, bank 2
System too lean
P1148 17556 Oxygen sensor control, bank 2
System too rich
P1149 17557 Oxygen sensor control, bank 1
Unplausible control value

P1150 17558 Oxygen sensor control, bank 2
Unplausible control value
P1171 17579 Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
Implausible signal
P1172 17580 Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
Signal too small
P1173 17581 Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
Signal too large
P1176 17584 Bank 1, oxygen sensor correction behind catalytic converter
Control limit reached

P1177 17585 Bank 2, oxygen sensor correction behind catalytic converter
Control limit reached
P1196 17604 O2 Sensor Heater Circ. Bank1-Sensor1
Electircal Malfunction
P1197 17605 O2 Sensor Heater Circ. Bank2-Sensor1
Electrical Malfunction
P1198 17606 O2 Sensor Heater Circ. Bank1-Sensor2
Electrical Malfunction
P1199 17607 O2 Sensor Heater Circ. Bank2-Sensor2
Electrical Malfunction
P1213 17621 Cylinder 1 fuel injector -N30-
Short circuit to B+
P1214 17622 Cylinder 2 fuel injector -N31-
Short circuit to B+
P1215 17623 Cylinder 3 fuel injector -N32-
Short circuit to B+
P1216 17624 Cylinder 4 fuel injector -N33-
Short circuit to B+
P1217 17625 Cylinder 5 fuel injector -N83-
Short circuit to B+
P1218 17626 Cylinder 6 fuel injector -N84-
Short circuit to B+
P1225 17633 Cylinder 1 fuel injector -N30-
Short circuit to Ground (GND)
P1226 17634 Cylinder 2 fuel injector -N31-
Short circuit to Ground (GND)
P1227 17635 Cylinder 3 fuel injector -N32-
Short circuit to Ground (GND)
P1228 17636 Cylinder 4 fuel injector -N33-
Short circuit to Ground (GND)
P1229 17637 Cylinder 5 fuel injector -N83-
Short circuit to Ground (GND)
P1230 17638 Cylinder 6 fuel injector -N84-
Short circuit to Ground (GND)
P1237 17645 Cylinder 1 fuel injector -N30-
Open circuit
P1238 17646 Cylinder 2 fuel injector -N31-
Open circuit
P1239 17647 Cylinder 3 fuel injector -N32-
Open circuit
P1240 17648 Cylinder 4 fuel injector -N33-
Open circuit
P1241 17649 Cylinder 5 fuel injector -N83-
Open circuit
P1242 17650 Cylinder 6 fuel injector -N84-
Open circuit
P1250 17658 Fuel level too low
  • Fill fuel tank with fuel
  • Check wire connection between Engine Control Module (ECM) and instrument cluster according to wiring diagram
  • Check signal from sender for fuel gauge and fuel gauge

    Repair Manual, Electrical Equipment, Repair Group 01, On Board Diagnostic (OBD) of instrument cluster; Read Measuring Value Block

Note on misfire malfunctions:Β 
For malfunctions that may be caused by low fuel volume (i.e. combustion misfire) a low-fuel malfunction
P1296 17704 Malfunction in cooling system
P1325 17733 Knock control, cyl. 1
Control limit reached
P1326 17734 Knock control, cyl. 2
Control limit reached
P1327 17735 Knock control, cyl. 3
Control limit reached
P1328 17736 Knock control, cyl. 4
Control limit reached
P1329 17737 Knock control, cyl. 5
Control limit reached
P1330 17738 Knock control, cyl. 6
Control limit reached
P1335 17743 Engine torque monitoring 2
Control limit exceeded

P1336 17744 Engine torque monitoring
Control limit exceeded
P1337 17745 Bank 2, Camshaft Position (CMP) sensor -G163-
Short circuit to Ground (GND)
P1338 17746 Bank 2, Camshaft Position (CMP) sensor -G163-
Open circuit / short circuit to B+
P1340 17748 Camshaft Position (CMP) / crankshaft position sensor
Incorrect allocation
P1347 17755 Bank 2 Camshaft Position (CMP) / crankshaft position sensor
Incorrect allocation
P1386 17794 Control module faulty
P1387 17795 Control module faulty
P1388 17796 Control module faulty
P1391 17799 Bank 1, Camshaft Position (CMP) sensor -G40-
Short circuit to Ground (GND)
P1392 17800 Bank 1, Camshaft Position (CMP) sensor -G40-
Open circuit / short circuit to B+
P1393 17801 Ignition output 1
Electrical malfunction in circuit
  • Check activation or wiring connection from Engine Control Module (ECM) to power output stage. See CHECKING ACTIVATION .
P1394 17802 Ignition output 2
Electrical malfunction in circuit
P1395 17803 Ignition output 3
Electrical malfunction in circuit
P1410 17818 EVAP canister purge regulator valve -N80-
Short circuit to B+
P1411 17819 Bank 2, Secondary Air Injection (AIR) system
Throughput too low
  • Check fuse for Secondary Air Injection (AIR) pump
  • Check vacuum hose setup
  • Check hose setup from pump to combination valve for Secondary Air Injection (AIR)

    See SECONDARY AIR INJECTION (AIR) SYSTEM .

P1414 17822 Bank 2, Secondary Air Injection (AIR) system
Leak detected
P1421 17829 Secondary Air Injection (AIR) solenoid valve -N112-
Short circuit to Ground (GND)
P1422 17830 Secondary Air Injection (AIR) solenoid valve -N112-
Short circuit to B+
P1423 17831 Bank 1, Secondary Air Injection (AIR) system
Throughput too low
  • Check fuse for Secondary Air Injection (AIR) pump
  • Check vacuum hose setup
  • Check hose setup from pump to combination valve for Secondary Air Injection (AIR)

    See SECONDARY AIR INJECTION (AIR) SYSTEM .

P1424 17832 Bank 1, Secondary Air Injection (AIR) system
Leak detected
P1425 17833 EVAP canister purge regulator valve -N80-
Short circuit to Ground (GND)
P1426 17834 EVAP canister purge regulator valve -N80-
Open circuit
P1427 17835 Activation of brake vacuum pump
Short circuit to B+
P1428 17836 Activation of brake vacuum pump
Short circuit to Ground (GND)
P1429 17837 Activation of brake vacuum pump
Open circuit
NOTE: DTCs P1427, P1428, and P1429 can only occur on vehicles with automatic transmission.
P1432 17840 Secondary Air Injection (AIR) solenoid valve - N112-
Open circuit
P1433 17841 Secondary Air Injection (AIR) pump relay -J299-
Open circuit
P1434 17842 Secondary Air Injection (AIR) pump relay -J299-
Short circuit to B+
P1435 17843 Secondary Air Injection (AIR) pump relay -J299-
Short circuit to Ground (GND)
P1436 17844 Sec. Air Inj. Sys. Pump Relay Circ.
Electircal Malfunction
P1471 17879 Leak Detection Pump (LDP) tank ventilation system
Short circuit to B+
P1472 17880 Leak Detection Pump (LDP) tank ventilation system
Short circuit to Ground (GND)
P1473 17881 Leak Detection Pump (LDP) tank ventilation system
Open circuit
NOTE: DTC P1479 can only occur on vehicles with automatic transmission.
P1475 17883 Leak Detection Pump (LDP) tank ventilation system
Malfunction / no signal

  • Check electrical wire connections to Leak Detection Pump according to wiring diagram
P1476 17884 Leak Detection Pump (LDP) tank ventilation system
Malfunction/vacuum pressure too low
P1477 17885 EVAP Emission Contr. LDP Circ.
Malfunction
  • Check Evaporative Emission (EVAP) system

    Repair Manual, Fuel Supply System, Repair Group 20

P1479 17887 Brake vacuum system
Mechanical malfunction
  • Perform a short trip in Engine Control Module (ECM) (basic setting; display group 8 with ignition on and selector lever in "P" or "N")
  • Check hose setup to pump or from pump to brake booster
  • Perform output Diagnostic Test Mode (DTM) in Engine Control Module (ECM) to check whether vacuum pump runs or is activated
P1500 17908 Fuel Pump Relay Circ.
Electrical Malfunction
P1501 17909 Fuel Pump (FP) relay - J17-
Short circuit to Ground (GND)
P1502 17910 Fuel Pump (FP) relay - J17-
Short circuit to B+
P1505 17913 Closed Throttle Pos. Switch
P1512 17920 Intake manifold change - over valve -N156-
Short circuit to B+
P1515 17923 Intake manifold change - over valve -N156-
Short circuit to Ground (GND)
P1516 17924 Intake manifold change - over valve -N156-
Open circuit
P1519 17927 Bank 1, camshaft adjustment
Malfunction
Check function of camshaft adjustment
P1522 17930 Bank 2, camshaft adjustment
Malfunction
P1523 17931 Crash signal from airbag control module
Implausible signal
Repair Manual, Body On Board Diagnostic (OBD), Repair Group 01; On Board Diagnostic (OBD) of airbag system
P1529 17937 Camshaft adjustment
Short circuit to B+
Checking solenoid valve for camshaft adjustment.
P1530 17938 Camshaft adjustment
Short circuit to Ground (GND)
P1531 17939 Camshaft adjustment
Open circuit
P1539 17947 Clutch vacuum vent valve switch -F36-
Implausible signal
P1541 17908 Fuel Pump (FP) relay - J17-
Open circuit
P1542 17950 Throttle Actuation Potentiometer -G187-
Implausible signal
P1543 17951 Throttle Actuation Potentiometer -G187-
Signal too small
P1544 17952 Throttle Actuation Potentiometer -G187-
Signal too large
P1545 17953 Throttle valve control
Malfunction
P1558 17966 Throttle drive (power accelerator actuation) -G186-
Electrical malfunction in circuit
P1559 17967 Throttle valve control module -J338-
Malfunction in basic setting
P1560 17968 Maximum Engine Speed Exceeded
  • Perform engine mechanical repairs as necessary
P1564 17972 Throttle valve control module -J338-
Voltage too low during basic setting
  • Charge battery, repeat basic setting
P1565 17973 Throttle valve control module -J338-
Lower impact still not reached
P1568 17976 Throttle valve control module -J338-
Mechanical malfunction
P1569 17977 Cruise control switch -E45-
Implausible signal
Up to 2000 m.y., see CRUISE CONTROL SYSTEM, ON BOARD DIAGNOSTIC . For 2001 m.y., see CRUISE CONTROL SYSTEM, ON BOARD DIAGNOSTIC .
P1570 17978 Engine Control Module (ECM) locked
P1579 17987 Throttle valve control module -J338-
Adaptation not started
P1600 18008 Power Supply (B+) Terminal 15
Low Voltage
P1602 18010 Voltage supply, terminal 30
Voltage too low
P1603 18011 Control module faulty
P1604 18012 Control module faulty
P1606 18014 Rough terrain info/engine torque from ABS control module
Electrical malfunction in circuit
P1609 18017 Crash shut-off was triggered
(Crash triggered)
See appropriate Air Bag article in RESTRAINTS.
P1386 17794 Control module faulty
P1612 18020 Engine Control Module (ECM) incorrectly coded
P1624 18032 Request for warning lamp on active
P1626 18034 Powertrain databus
Missing message from Transmission Control Module (TCM)
P1630 18038 Throttle Position (TP) sensor -G79-
Signal too small
P1631 18039 Throttle Position (TP) sensor -G79-
Signal too large
P1633 18041 Sender -2- for accelerator pedal position -G185-
Signal too small
P1634 18042 Sender -2- for accelerator pedal position -G185-
Signal too large
P1639 18047 Throttle Position (TP) sensor -G79- and sender -2- for accelerator pedal position -G185-
Implausible signal
P1640 18048 Control module faulty
P1648 18056 Powertrain databus
faulty
P1649 18057 Powertrain databus
Missing message from ABS control module
P1650 18058 Powertrain databus
Missing message from instrument cluster
P1681 18089 Contr. Unit Programming
Programming not Finished
P1682 18090 Powertrain databus
Implausible message from ABS control module
P1690 18098 Malfunction Indicator Light
Malfunction
Note for DTC P1624/18032:Β 
If this malfunction is detected by the Transmission Control Module (TCM), the MIL is switched on by the ECM. In this case, the ECM stores the malfunction "MIL Request Sign. active" (DTC P1624/18032). After repairing the malfunction, erase DTC memory of the ECM.
P1853 18261 Powertrain databus
Implausible message from ABS control module
P1912 18320 Brake booster pressure sensor -G294-
Open circuit/short circuit to B+
P1913 18321 Brake booster pressure sensor -G294-
Short circuit to Ground (GND)
P1914 18322 Brake booster pressure sensor -G294-
Unplausible signal
NOTE: DTCs P1912, P1913, and P1914 can only occur on vehicles with automatic transmission.
P3262 16646 Exhaust bank 1/2
Oxygen sensors behind catalytic converter mixed up
  • Check harness connectors

Diagnostic Trouble Codes (DTC) Index

DTC INDEX - 2.8L (AHA & ATQ ENGINES)

SAE Code VAG Code Code Description Corrective Action
P0101 16485 Mass Air Flow (MAF) sensor -G70-
Implausible signal
P0102 16486 Mass Air Flow (MAF) sensor -G70-
Signal too small
P0103 16487 Mass Air Flow (MAF) sensor -G70-
Signal too large
P0112 16496 Intake Air Temperature (IAT) sensor -G42-
Signal too small
P0113 16497 Intake Air Temperature (IAT) sensor -G42-
Signal too large
P0116 16500 Engine Coolant Temperature (ECT) sensor -G62-
Implausible signal
P0117 16501 Engine Coolant Temperature (ECT) sensor -G62-
Signal too small
P0118 16502 Engine Coolant Temperature (ECT) sensor -G62-
Signal too large
P0121 16505 Throttle/Pedal Pos. Sensor A Circ.
Range/Performance
P0122 16506 Throttle/Pedal Pos. Sensor A Circ.
Low Input
P0123 16507 Throttle/Pedal Pos. Sensor A Circ.
High Input
P0130 16514 Bank 1, sensor 1
Electrical malfunction in circuit
P0131 16515 Bank 1, sensor 1
Voltage too low
P0132 16516 Bank 1, sensor 1
Voltage too high
P0133 16517 Bank1, Sensor 1
Signal too slow
P0134 16518 Bank 1, sensor 1
No activity
P0136 16520 Bank1, Sensor 2
Electrical malfunction in circuit
P0137 16521 Bank1, Sensor 2
Voltage too low
P0138 16522 Bank1, Sensor 2
Voltage too high
P0139 16523 Bank1, Sensor 2
Signal too slow
P0140 16524 Bank1, Sensor 2
No activity
P0150 16534 Bank 2, sensor 1
Electrical malfunction in circuit
P0151 16535 Bank 2, sensor 1
Voltage too low
P0152 16536 Bank 2, sensor 1
Voltage too high
P0153 16537 Bank 2, sensor 1
Signal too slow
P0154 16538 Bank 2, sensor 1
No activity
P0156 16540 Bank 2, sensor 2
Electrical malfunction in circuit
P0157 16541 Bank 2, sensor 2
Voltage too low
P0158 16542 Bank 2, sensor 2
Voltage too high
P0159 16543 Bank 2, sensor 2
Signal too slow
P0160 16544 Bank 2, sensor 2
No activity
Note on misfire malfunctions:Β  For malfunctions that may be caused by low fuel volume (i.e. combustion misfire), a low-fuel malfunction (DTC P1250) is also stored when there is less than 2 gallon of fuel remaining in the tank.
P0219 16603 Maximum engine speed exceeded
  • Repair mechanical damage
P0300 16684 Combustion misfire detected
  • Check spark plugs and ignition wires with connector




  • Fill fuel tank with fuel

  • Check hose setup of crankcase ventilation for secure seating and proper seal.
P0301 16685 Cyl. 1 combustion misfire detected
P0302 16686 Cyl. 2 combustion misfire detected
P0303 16687 Cyl. 3 combustion misfire detected
P0304 16688 Cyl. 4 combustion misfire detected
P0305 16689 Cyl. 5 combustion misfire detected
P0306 16690 Cyl. 6 combustion misfire detected
P0321 16705 Engine Speed (RPM) sensor -G28-
Implausible signal

P0322 16706 Engine Speed (RPM) sensor -G28-
No signal
P0327 16711 Knock Sensor (KS) 1 -G61-
Signal too small
P0328 16712 Knock Sensor (KS) 1 -G61
Signal too large
P0332 16716 Knock Sensor (KS) 2 -G66-
Signal too small
P0333 16717 Knock Sensor (KS) 2 -G66-
Signal too large
P0341 16725 Camshaft Position (CMP) sensor -G40-
Implausible signal
P0346 16730 Camshaft Position (CMP) sensor -G163-
Implausible signal
P0411 16795 Sec. Air Inj. Sys.
Incorrect Flow Detected
P0420 16804 Catalytic converter system, bank 1,
Not effective enough
P0421 16805 Primary catalytic converter, bank 1,
Not effective enough
P0422 16806 Main Catalyst, Bank1
Efficiency Below Threshold
P0430 16814 Catalytic converter system, bank 2,
Not effective enough
P0431 16815 Primary catalytic converter, bank 2,
Not effective enough
P0432 16816 Main Catalyst, Bank2
Efficiency Below Threshold
P0441 16825 Tank ventilation system
Throughput faulty
P0442 16826 Tank ventilation system
Small leak detected
  • Checking fuel supply and ventilation systems for leaks

See EVAP CANISTER SYSTEM .
P0455 16839 Tank ventilation system
Large leak detected
P0456 16840 Tank ventilation system
Pinhole leak detected
P0501 16885 Vehicle speed signal
Implausible signal
P0506 16890 Idle control
Engine speed below specified value

  • Check hose setup (intake manifold change-over valve and Secondary Air Injection - AIR- solenoid valve); check intake system for leaks (unmetered air). See INTAKE AIR SYSTEM, CHECKING FOR LEAKS (UNMETERED AIR) .
  • Check hose setup of crankcase ventilation for secure seating and proper seal.
P0507 16891 Idle control
Engine speed above specified value
P0560 16944 Voltage supply
Implausible signal
P0562 16946 Voltage supply
Voltage too low
P0563 16947 Voltage supply
Voltage too high
P0571 16955 Brake light switch -F-
Implausible signal
P0601 16985 Control module faulty
P0604 16988 Control module faulty
P0605 16989 Control module faulty
P1102 17510 Bank 1, sensor 1, heating circuit
Short circuit to B+
P1105 17513 Bank 2, sensor 1, heating circuit
Short circuit to B+
P1107 17515 Bank 2, sensor 1, heating circuit
Short circuit to B+
P1110 17518 Bank 2, sensor 2, heating circuit
Short circuit to B+
P1111 17519 Oxygen sensor control, bank 1
System too lean
  • Check oxygen sensor control before catalytic converter. See OXYGEN SENSOR CONTROL, CHECKING .
  • Check hose setup of crankcase ventilation for secure seating and proper seal.
P1112 17520 Oxygen sensor control, bank 1
System too rich
P1113 17521 Bank 1, sensor 1
Internal resistance too large
P1114 17522 Bank 1, sensor 2
Internal resistance too large
  • Next check signal wires for contact resistance. See TESTING OXYGEN SENSOR WIRES . If there are no contact resistances: Replace oxygen sensor.
P1115 17523 Bank 1, sensor 1, heating circuit
Short circuit to Ground (GND)
P1116 17524 Bank 1, sensor 1, heating circuit
Open circuit
P1117 17525 Bank 2, sensor 1, heating circuit
Short circuit to Ground (GND)
P1118 17526 Bank 2, sensor 1, heating circuit
Open circuit
P1119 17527 Bank 2, sensor 1, heating circuit
Short circuit to Ground (GND)
P1120 17528 Bank 2, sensor 1, heating circuit
Open circuit
P1121 17529 Bank 2, sensor 2, heating circuit
Short circuit to Ground (GND)
P1122 17530 Bank 2, sensor 2, heating circuit
Open circuit
P1127 17535 Bank 1, mixture adaptation (mult.)
System too rich


P1128 17536 Bank 1, mixture adaptation (mult.)
System too lean
P1129 17537 Bank 2, mixture adaptation (mult.)
System too rich
P1130 17538 Bank 2, mixture adaptation (mult.)
System too lean
P1131 17539 Bank 2, sensor 1
Internal resistance too large
  • Next check signal wires for contact resistance Page 24-100; if there are no contact resistances: Replace oxygen sensor
P1136 17544 Bank 1, mixture adaptation (add.)
System too lean


P1137 17545 Bank 1, mixture adaptation (add.)
System too rich
P1138 17546 Bank 2, mixture adaptation (add.)
System too lean
P1139 17547 Bank 2, mixture adaptation (add.)
System too rich
P1140 17548 Bank 2, sensor 2
Internal resistance too large
P1141 17549 Load detection
Implausible value
P1142 17550 Load detection
Limit not reached
P1143 17551 Load detection
Limit exceeded
P1147 17555 Oxygen sensor control, bank 2
System too lean
P1148 17556 Oxygen sensor control, bank 2
System too rich
P1149 17557 Oxygen sensor control, bank 1
Unplausible control value

P1150 17558 Oxygen sensor control, bank 2
Unplausible control value
P1171 17579 Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
Implausible signal
P1172 17580 Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
Signal too small
P1173 17581 Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
Signal too large
P1176 17584 Bank 1, oxygen sensor correction behind catalytic converter
Control limit reached

P1177 17585 Bank 2, oxygen sensor correction behind catalytic converter
Control limit reached
P1196 17604 O2 Sensor Heater Circ. Bank1-Sensor1
Electircal Malfunction
P1197 17605 O2 Sensor Heater Circ. Bank2-Sensor1
Electrical Malfunction
P1198 17606 O2 Sensor Heater Circ. Bank1-Sensor2
Electrical Malfunction
P1199 17607 O2 Sensor Heater Circ. Bank2-Sensor2
Electrical Malfunction
P1213 17621 Cylinder 1 fuel injector -N30-
Short circuit to B+
P1214 17622 Cylinder 2 fuel injector -N31-
Short circuit to B+
P1215 17623 Cylinder 3 fuel injector -N32-
Short circuit to B+
P1216 17624 Cylinder 4 fuel injector -N33-
Short circuit to B+
P1217 17625 Cylinder 5 fuel injector -N83-
Short circuit to B+
P1218 17626 Cylinder 6 fuel injector -N84-
Short circuit to B+
P1225 17633 Cylinder 1 fuel injector -N30-
Short circuit to Ground (GND)
P1226 17634 Cylinder 2 fuel injector -N31-
Short circuit to Ground (GND)
P1227 17635 Cylinder 3 fuel injector -N32-
Short circuit to Ground (GND)
P1228 17636 Cylinder 4 fuel injector -N33-
Short circuit to Ground (GND)
P1229 17637 Cylinder 5 fuel injector -N83-
Short circuit to Ground (GND)
P1230 17638 Cylinder 6 fuel injector -N84-
Short circuit to Ground (GND)
P1237 17645 Cylinder 1 fuel injector -N30-
Open circuit
P1238 17646 Cylinder 2 fuel injector -N31-
Open circuit
P1239 17647 Cylinder 3 fuel injector -N32-
Open circuit
P1240 17648 Cylinder 4 fuel injector -N33-
Open circuit
P1241 17649 Cylinder 5 fuel injector -N83-
Open circuit
P1242 17650 Cylinder 6 fuel injector -N84-
Open circuit
P1250 17658 Fuel level too low
  • Fill fuel tank with fuel
  • Check wire connection between Engine Control Module (ECM) and instrument cluster according to wiring diagram
  • Check signal from sender for fuel gauge and fuel gauge

    Repair Manual, Electrical Equipment, Repair Group 01, On Board Diagnostic (OBD) of instrument cluster; Read Measuring Value Block

Note on misfire malfunctions:Β 
For malfunctions that may be caused by low fuel volume (i.e. combustion misfire) a low-fuel malfunction
P1296 17704 Malfunction in cooling system
P1325 17733 Knock control, cyl. 1
Control limit reached
P1326 17734 Knock control, cyl. 2
Control limit reached
P1327 17735 Knock control, cyl. 3
Control limit reached
P1328 17736 Knock control, cyl. 4
Control limit reached
P1329 17737 Knock control, cyl. 5
Control limit reached
P1330 17738 Knock control, cyl. 6
Control limit reached
P1335 17743 Engine torque monitoring 2
Control limit exceeded

P1336 17744 Engine torque monitoring
Control limit exceeded
P1337 17745 Bank 2, Camshaft Position (CMP) sensor -G163-
Short circuit to Ground (GND)
P1338 17746 Bank 2, Camshaft Position (CMP) sensor -G163-
Open circuit / short circuit to B+
P1340 17748 Camshaft Position (CMP) / crankshaft position sensor
Incorrect allocation
P1347 17755 Bank 2 Camshaft Position (CMP) / crankshaft position sensor
Incorrect allocation
P1386 17794 Control module faulty
P1387 17795 Control module faulty
P1388 17796 Control module faulty
P1391 17799 Bank 1, Camshaft Position (CMP) sensor -G40-
Short circuit to Ground (GND)
P1392 17800 Bank 1, Camshaft Position (CMP) sensor -G40-
Open circuit / short circuit to B+
P1393 17801 Ignition output 1
Electrical malfunction in circuit
  • Check activation or wiring connection from Engine Control Module (ECM) to power output stage. See CHECKING ACTIVATION .
P1394 17802 Ignition output 2
Electrical malfunction in circuit
P1395 17803 Ignition output 3
Electrical malfunction in circuit
P1410 17818 EVAP canister purge regulator valve -N80-
Short circuit to B+
P1411 17819 Bank 2, Secondary Air Injection (AIR) system
Throughput too low
  • Check fuse for Secondary Air Injection (AIR) pump
  • Check vacuum hose setup
  • Check hose setup from pump to combination valve for Secondary Air Injection (AIR)

    See SECONDARY AIR INJECTION (AIR) SYSTEM .

P1414 17822 Bank 2, Secondary Air Injection (AIR) system
Leak detected
P1421 17829 Secondary Air Injection (AIR) solenoid valve -N112-
Short circuit to Ground (GND)
P1422 17830 Secondary Air Injection (AIR) solenoid valve -N112-
Short circuit to B+
P1423 17831 Bank 1, Secondary Air Injection (AIR) system
Throughput too low
  • Check fuse for Secondary Air Injection (AIR) pump
  • Check vacuum hose setup
  • Check hose setup from pump to combination valve for Secondary Air Injection (AIR)

    See SECONDARY AIR INJECTION (AIR) SYSTEM .

P1424 17832 Bank 1, Secondary Air Injection (AIR) system
Leak detected
P1425 17833 EVAP canister purge regulator valve -N80-
Short circuit to Ground (GND)
P1426 17834 EVAP canister purge regulator valve -N80-
Open circuit
P1427 17835 Activation of brake vacuum pump
Short circuit to B+
P1428 17836 Activation of brake vacuum pump
Short circuit to Ground (GND)
P1429 17837 Activation of brake vacuum pump
Open circuit
NOTE: DTCs P1427, P1428, and P1429 can only occur on vehicles with automatic transmission.
P1432 17840 Secondary Air Injection (AIR) solenoid valve - N112-
Open circuit
P1433 17841 Secondary Air Injection (AIR) pump relay -J299-
Open circuit
P1434 17842 Secondary Air Injection (AIR) pump relay -J299-
Short circuit to B+
P1435 17843 Secondary Air Injection (AIR) pump relay -J299-
Short circuit to Ground (GND)
P1436 17844 Sec. Air Inj. Sys. Pump Relay Circ.
Electircal Malfunction
P1471 17879 Leak Detection Pump (LDP) tank ventilation system
Short circuit to B+
P1472 17880 Leak Detection Pump (LDP) tank ventilation system
Short circuit to Ground (GND)
P1473 17881 Leak Detection Pump (LDP) tank ventilation system
Open circuit
NOTE: DTC P1479 can only occur on vehicles with automatic transmission.
P1475 17883 Leak Detection Pump (LDP) tank ventilation system
Malfunction / no signal

  • Check electrical wire connections to Leak Detection Pump according to wiring diagram
P1476 17884 Leak Detection Pump (LDP) tank ventilation system
Malfunction/vacuum pressure too low
P1477 17885 EVAP Emission Contr. LDP Circ.
Malfunction
  • Check Evaporative Emission (EVAP) system

    Repair Manual, Fuel Supply System, Repair Group 20

P1479 17887 Brake vacuum system
Mechanical malfunction
  • Perform a short trip in Engine Control Module (ECM) (basic setting; display group 8 with ignition on and selector lever in "P" or "N")
  • Check hose setup to pump or from pump to brake booster
  • Perform output Diagnostic Test Mode (DTM) in Engine Control Module (ECM) to check whether vacuum pump runs or is activated
P1500 17908 Fuel Pump Relay Circ.
Electrical Malfunction
P1501 17909 Fuel Pump (FP) relay - J17-
Short circuit to Ground (GND)
P1502 17910 Fuel Pump (FP) relay - J17-
Short circuit to B+
P1505 17913 Closed Throttle Pos. Switch
P1512 17920 Intake manifold change - over valve -N156-
Short circuit to B+
P1515 17923 Intake manifold change - over valve -N156-
Short circuit to Ground (GND)
P1516 17924 Intake manifold change - over valve -N156-
Open circuit
P1519 17927 Bank 1, camshaft adjustment
Malfunction
Check function of camshaft adjustment
P1522 17930 Bank 2, camshaft adjustment
Malfunction
P1523 17931 Crash signal from airbag control module
Implausible signal
Repair Manual, Body On Board Diagnostic (OBD), Repair Group 01; On Board Diagnostic (OBD) of airbag system
P1529 17937 Camshaft adjustment
Short circuit to B+
Checking solenoid valve for camshaft adjustment.
P1530 17938 Camshaft adjustment
Short circuit to Ground (GND)
P1531 17939 Camshaft adjustment
Open circuit
P1539 17947 Clutch vacuum vent valve switch -F36-
Implausible signal
P1541 17908 Fuel Pump (FP) relay - J17-
Open circuit
P1542 17950 Throttle Actuation Potentiometer -G187-
Implausible signal
P1543 17951 Throttle Actuation Potentiometer -G187-
Signal too small
P1544 17952 Throttle Actuation Potentiometer -G187-
Signal too large
P1545 17953 Throttle valve control
Malfunction
P1558 17966 Throttle drive (power accelerator actuation) -G186-
Electrical malfunction in circuit
P1559 17967 Throttle valve control module -J338-
Malfunction in basic setting
P1560 17968 Maximum Engine Speed Exceeded
  • Perform engine mechanical repairs as necessary
P1564 17972 Throttle valve control module -J338-
Voltage too low during basic setting
  • Charge battery, repeat basic setting
P1565 17973 Throttle valve control module -J338-
Lower impact still not reached
P1568 17976 Throttle valve control module -J338-
Mechanical malfunction
P1569 17977 Cruise control switch -E45-
Implausible signal
Up to 2000 m.y., see CRUISE CONTROL SYSTEM, ON BOARD DIAGNOSTIC . For 2001 m.y., see CRUISE CONTROL SYSTEM, ON BOARD DIAGNOSTIC .
P1570 17978 Engine Control Module (ECM) locked
P1579 17987 Throttle valve control module -J338-
Adaptation not started
P1600 18008 Power Supply (B+) Terminal 15
Low Voltage
P1602 18010 Voltage supply, terminal 30
Voltage too low
P1603 18011 Control module faulty
P1604 18012 Control module faulty
P1606 18014 Rough terrain info/engine torque from ABS control module
Electrical malfunction in circuit
P1609 18017 Crash shut-off was triggered
(Crash triggered)
See appropriate Air Bag article in RESTRAINTS.
P1386 17794 Control module faulty
P1612 18020 Engine Control Module (ECM) incorrectly coded
P1624 18032 Request for warning lamp on active
P1626 18034 Powertrain databus
Missing message from Transmission Control Module (TCM)
P1630 18038 Throttle Position (TP) sensor -G79-
Signal too small
P1631 18039 Throttle Position (TP) sensor -G79-
Signal too large
P1633 18041 Sender -2- for accelerator pedal position -G185-
Signal too small
P1634 18042 Sender -2- for accelerator pedal position -G185-
Signal too large
P1639 18047 Throttle Position (TP) sensor -G79- and sender -2- for accelerator pedal position -G185-
Implausible signal
P1640 18048 Control module faulty
P1648 18056 Powertrain databus
faulty
P1649 18057 Powertrain databus
Missing message from ABS control module
P1650 18058 Powertrain databus
Missing message from instrument cluster
P1681 18089 Contr. Unit Programming
Programming not Finished
P1682 18090 Powertrain databus
Implausible message from ABS control module
P1690 18098 Malfunction Indicator Light
Malfunction
Note for DTC P1624/18032:Β 
If this malfunction is detected by the Transmission Control Module (TCM), the MIL is switched on by the ECM. In this case, the ECM stores the malfunction "MIL Request Sign. active" (DTC P1624/18032). After repairing the malfunction, erase DTC memory of the ECM.
P1853 18261 Powertrain databus
Implausible message from ABS control module
P1912 18320 Brake booster pressure sensor -G294-
Open circuit/short circuit to B+
P1913 18321 Brake booster pressure sensor -G294-
Short circuit to Ground (GND)
P1914 18322 Brake booster pressure sensor -G294-
Unplausible signal
NOTE: DTCs P1912, P1913, and P1914 can only occur on vehicles with automatic transmission.
P3262 16646 Exhaust bank 1/2
Oxygen sensors behind catalytic converter mixed up
  • Check harness connectors

A L L Diagnostic Trouble Codes ( DTC )

Supporting Diagrams & Locations

Reference material from the factory manual for this diagnostic procedure.

Diagram

Corrective Steps

Diagram

Corrective Steps

Diagram

Corrective Steps

Diagram

Corrective Steps

Diagram

Corrective Steps

Diagram

Corrective Steps

Location

CHRYSLER Group LLC

Location

CHRYSLER Group LLC

Location

ACURA

Location

AUDI

Fuse/Relay

Diagnostic Trouble Codes (DTC) Index

Fuse/Relay

CHRYSLER Group LLC

Fuse/Relay

AUDI

Fuse/Relay

BMW

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