2007 Mazda 6 s, 4D Hatchback, AutomaticFACTORY OEM SERVICE PROCEDURE

Pcm Inspection: Notes

  1. Connect the M-MDS to the DLC-2.
  2. Turn the ignition switch to ON position.
  3. Measure the PID value.
    • If PID value is not within the specification, follow the instructions in Action column.
      Fig 1: Locating DLC-2 Connector
      G04324291Courtesy of MAZDA MOTORS CORP.

PID/DATA MONITOR table (Reference) 

PID/DATA MONITOR REFERENCE

Monitor item (Definition) Unit/Condition Condition/Specification (Reference) Inspection item (s) PCM terminal
AAT
(Ambient air temperature)		 °C or °F Ignition switch at ON position:
Indicate the ambient air temperature		 -
AC REQ (A/C switch) On/Off A/C switch and fan switch ON at ignition switch ON: On A/C switch OFF at ignition switch ON: Off 1AN
ACCS (A/C relay) On/Off A/C is operating: On
Ignition switch is ON: Off		 1AW
ALTF (Generator field coil control duty value) % Ignition switch is ON: 0% Idling, E/L is operating: Duty value rises
  • Inspect following PIDs: ALTT V, ECT, IAT, RPM
 2AP
ALTT V (Generator output voltage) V Ignition switch is ON: 0 V
Idling: 14-16 V		 2AU
APP (Accelerator pedal position) % CTP: Approx. 0%
WOT: Approx. 99.2%		 1AP, 1AO
APP1 (APP sensor No.1) % AP is released: 31.0-32.4%
AP is depressed: 69.8-81.8%		 1AO
V AP is released: 1.55-1.62 V
AP is depressed: 3.49-4.09 V
APP2 (APP sensor No.2) % AP is released: 20.2-21.4%
AP is depressed: 58.8-70.8%		 1AP
V AP is released: 1.01-1.07 V
AP is depressed: 2.94-3.54 V
ARPMDES (Target engine speed) RPM Idling (no load): 700-800 RPM -
BARO (Barometric pressure) kPa, Bar, psi Ignition switch is ON at sea level: Approx. 101 kPa {1.01 Bar, 14.6 psi} 1AL
V Ignition switch is ON at sea level: Approx. 4.1 V
BARO/EGR (EGR boost sensor solenoid valve) On/Off Ignition switch is ON:
Off Idling: Off		 1AX
BOO (Brake switch No.1) On/Off Brake pedal is depressed: On
Brake pedal is released: Off		 1AJ
BPA (Brake switch No.2) On/Off Brake pedal is depressed: Off
Brake pedal is released: On		 1AF
CATT11_DSD
(Estimated catalytic converter temperature)		 °C or °F Idling after warm-up: indicate the WU-TWC (RH) forecast temperature
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
CATT21_DSD
(Estimated catalytic converter temperature)		 °C or °F Idling after warm-up: indicate the WU-TWC (LH) forecast temperature
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
CHRGLP (Generator warning light) On/Off Ignition switch is ON: On
Idling: Off
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
COLP (Refrigerant pressure switch - middle) On/Off Idling, refrigerant pressure switch (middle) is on: On
Idling, refrigerant pressure switch (middle) is off: Off		 1AH
CPP(1)
(Clutch pedal position)		 On/Off Clutch pedal is depressed: On
Clutch pedal is released: Off		 1AB
CPP/PNP(1)
(Shift lever position)		 Neutral/Drive Gear is neutral position: Neutral
Gear is not neutral position: Drive		 2X
DTCCNT
(Number of DTC detected)		 - -
  • Perform applicable DTC troubleshooting.

    (See DTC TABLE ).

 -
ECT
(Engine coolant temperature)		 °C or °F Indicate the engine coolant temperature 2AQ
V ECT is 20°C {68°F}: 2.9-3.1 V After warm-up: 0.2-1.0 V
EQ_RAT11_DSD (Front oxygen sensor) - Idling after warm-up: Approx. 1
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
ETC_ACT
(Electronic throttle control actual)		 ° Accelerator pedal is released: Approx. 7.4°
Accelerator pedal is released: Approx. 74.3°		 2AI, 2AM
ETC_DSD
(Electronic throttle control desired)		 % Throttle valve is closed --> open: PID value changes smoothly 2AI, 2AM
° Accelerator pedal is released: Approx. 0°
Accelerator pedal is released: Approx. 74°
EVAPCP
(Purge solenoid valve duty value)		 % Ignition switch is ON: 0%
  • Inspect following PIDs: BARO, ECT, IAT, MAF, O2S11, O2S21, RPM, TP REL
 1BF
FAN_DUTY
(Fan control signal)		 % ECT is below 100°C {212°F}: 0%
ECT is above 100°C {212°F}:
50-100%
  • Inspect following PIDs: COLP, ECT
 1U
FLI (Fuel level) % - - -
FP
(Fuel pump relay)		 On/Off Ignition switch is ON: Off
Idling: On
Cranking: On		 1V
FUELPW
(Fuel injection duration)		 ms Ignition switch is ON: 0 ms
Idling: 1.5-3.0 ms
  • Inspect following PIDs: ACSW, ALTT V, ECT, IAT, INGEAR, MAF, MAP, O2S11, O2S12, O2S21, O2S22, PSP, RPM, TP REL, VBAT
  • Fuel injector

    (See FUEL INJECTOR INSPECTION [AJ] ).

 2G, 2E, 2J, 2F, 2K 21
FUEL SYS1
(Fuel system status)		 OL/CL/OL-Drive/OL-Fault/CL-Fault Ignition switch is ON: CL
Idling after warm-up: CL
  • Inspect following PIDs: ALTT V, ECT, IAT, INGEAR, MAF, MAP, O2S11, 02S12, O2S21, O2S22, PSP, RPM, TP REL
  • Fuel injector

    (See FUEL INJECTOR INSPECTION [AJ] ).

 -
FUEL SYS2
(Fuel system status)		 OL/CL/OL-Drive/OL-Fault/CL-Fault Ignition switch is ON: CL
Idling after warm-up: CL
  • Inspect following PIDs: ALTT V, ECT, IAT, INGEAR, MAF, MAP, O2S11, O2S12, O2S21, O2S22, PSP, RPM, TP REL
  • Fuel injector

    (See FUEL INJECTOR INSPECTION [AJ] ).

 -
GENVDSD
(Generator voltage desired)		 V Ignition switch is ON: 0 V
Idling, E/L is not operating:
Approx. 14.9 V
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
HTR11
(HO2S heater - RF)		 On/Off Idle after warm-up: On and Off
  • Inspect following PIDs: ECT, MAF, RPM, TP REL
 2AW
HTR12
(HO2S heater - RR)		 On/Off Idling: On
Engine speed is above 4,000 RPM: Off
  • Inspect following PIDs: ECT, MAF, RPM, TP REL
 2AT
HTR21
(HO2S heater - LF)		 On/Off Idle after warm-up: On and Off
  • Inspect following PIDs: ECT, MAF, RPM, TP REL
 2AS
HTR22
(HO2S heater - LR)		 On/Off Idling: On
Engine speed is above 4,000 RPM: Off
  • Inspect following PIDs: ECT, MAF, RPM, TP REL
 2AO
IASV
(VAD control solenoid valve)		 On/Off TP opening angle is less than 60% and engine speed is 6,000 RPM or above: On
TP opening angle is 60% or above and engine speed is 4,800 RPM or above: On
Others: Off
  • Inspect following PIDs: ECT, RPM, TP REL
 1BB
IAT
(Intake air temperature)		 °C or °F Indicate the intake-air temperature 1AT
V IAT is 20°C {68°F}: 2.4-2.6 V
IAT is 30°C {86°F}: 1.7-1.9 V
INGEAR(1)
(Load/no load condition)		 On/Off Gear is not neutral position and clutch pedal is released: On
Gear is neutral position: Off
Clutch pedal is depressed: Off
  • Inspect following PIDs: CPP, CPP/PNP
  • Perform applicable DTC troubleshooting.

    (See DTC TABLE ).

 1AB, 2X
IVS
(CTP condition)		 Idle/Off Idle CTP: Idle
Others: Off Idle
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 2AI, 2AM
KNOCKR
(Knocking retard)		 ° Ignition switch is ON: 0°
Idling: 0°		 2AF, 2AC
LDP_EVAPCP
(EVAP system leak detection pump detect incorrect purge flow)		 mA Indicate the EVAP control system incorrect purge flow detection value
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
LDP_IDL (EVAP system leak detection pump idle current) mA Indicate the EVAP system leak detection pump idle current
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
LDP_MON (EVAP system leak detection pump monitoring current) mA Indicate the EVAP system leak detection pump monitoring current
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
LDP_REF (EVAP system leak detection pump reference current) mA Indicate the EVAP system leak detection pump reference current
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
LDP_SLDV (EVAP system small leak detection value) mA Indicate the EVAP control system small leak detection value
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
LDP_VSL_FV(2)
(EVAP system small leak detection value)		 mA/sec Indicate the EVAP control system vary small leak detection value
  • Perform applicable DTC troubleshooting.

    (See DTC TABLE ). -

 -
LDP_VSL_SV(2)
(EVAP system small leak detection value)		 mA/sec Indicate the EVAP control system vary small leak detection value
  • Perform applicable DTC troubleshooting.

    (See DTC TABLE ).

 -
LDP_VSLDV(2)
(EVAP system small leak detection value)		 mA/sec Indicate the EVAP control system vary small leak detection value
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
LOAD
(Engine load)		 % MTX 
Idling: Approx. 16.8%
Engine speed is 2,500 RPM:
Approx. 14.6%
ATX 
Idling: Approx. 17.5%
Engine speed is 2,500 RPM:
Approx. 15.2%
  • Inspect following PIDs: ECT, IAT, MAF, MAP, RPM, TP REL
 -
LONGFT1
(Long term fuel trim - RH)		 % Idling: -20-20%
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
LONGFT2
(Long term fuel trim - LH)		 % Idling: -20-20%
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
MAF (Mass airflow) g/s MTX 
Idling: 3.6-3.8 g/s
Engine speed is 2,500 RPM:
10.5-11.2 g/s
ATX 
Idling: 3.8-4.0 g/s
Engine speed is 2,500 RPM:
10.6-11.4 g/s
  • MAF sensor

    01-40C-32 MASS AIR FLOW (MAF) SENSOR INSPECTION [AJ]).

 1AK
V Idling: Approx. 1.3 V
Engine speed is 2,500 RPM:
Approx. 1.9 V
MIL
(Malfunction indicator light)		 On/Off Ignition switch is ON: On
Idling: Off
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
MIL_DIS (Travelled distance since the MIL illuminated) km or mile No DTC: 0 km {0 mile}
DTC detected: Not 0 km {0 mile}
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
NUMKEYS
(Number of keys stored in module)		 - Indicate the number of keys stored in module - -
O2S11 (HO2S - RF) V Idling after warm-up: 0-1.0 V
Acceleration: 0.5-1.0 V
Deceleration: 0-0.5 V		 2AK
O2S12
(HO2S - RR)		 V Ignition switch is ON: 0-1.0 V
Idling after warm-up: 0-1.0 V
Acceleration: 0.5-1.0 V
Deceleration: 0-0.5 V		 2AG
O2S21
(HO2S - LF)		 V Idling after warm-up: Approx. 0.6 V 2AL
O2S22
(HO2S - LR)		 V Idling after warm-up: Approx. 0.6 V 2AH
PSP
(PSP switch)		 High/Low Steering wheel is in straight ahead position: Low
Steering wheel is turned: High		 2T
RFCFLAG
(Readiness Function Code)		 Learnt/Not Learnt RFC exists: Learnt
No RFC: Not Learnt		 -
RO2FT1
(HO2S (RR) fuel trim)		 - Idling after warm-up: Approx. -0.03-0.03
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
RO2FT2
(HO2S (RL) fuel trim)		 - Idling after warm-up: Approx. -0.03-0.03
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
RPM
(Engine speed)		 RPM Idling (no load): 700-800 RPM 2Z, 2Y
SCCS
(Cruise control switch)		 V Press ON/OFF: Approx. 0 V
Press CALCEL: Approx. 1.2 V
Press SET/COAST: Approx. 3.2 V
Press RES/ACCEL: Approx. 4.2 V Others: Approx. 5.0 V		 1AS
SEGRP
(EGR valve position)		 No. of step Ignition switch is ON: 0 step
Idling: 0 step
Cranking: 0-60 steps		 -
SEGRP DSD
(Desired EGR valve position)		 % Ignition switch is ON: 0%
Idling: 0%
Cranking: 0-100%
  • Inspect following PIDs: ECT, IAT, MAF, RPM, VSS
 -
SHRTFT1
(Short term fuel trim - RH)		 % Idling: -20-20%
  • Perform applicable DTC troubleshooting.

    (See DTC TABLE ).

 -
SHRTFT11
(Short term fuel trim - RF)		 % Idling: -20-20%
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
SHRTFT12
(Short term fuel trim - LF)		 % Idling: -20-20%
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
SHRTFT2
(Short term fuel trim - LH)		 % Idling: -20-20%
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
SHRTFT21
(Short term fuel trim - RR)		 % Idling: -20-20%
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
SHRTFT22 (Short term fuel trim - LR) % Idling: -20-20%
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
SPARKADV
(Ignition timing)		 ° (BTDC) Ignition switch is ON: 0° (BTDC)
Idling: Approx. 10° (BTDC)
  • Inspect following PIDs: ALTT V, CPP, CPP/PNP, ECT, KNOCKR, MAF, PSP, RPM, TP REL, VSS
  • Perform engine tune-up

    (See ENGINE TUNE-UP ).

 -
test (Test mode) On/Off - - -
TIRESIZE (Tire revolution per mile) rev/mile Indicate the tire revolution per a mile - -
TPREL
(Relative throttle position)		 % Throttle valve is closed --> open:
PID value changes smoothly		 2AI, 2AM
TP1
(TP sensor No.1 signal voltage)		 % Ignition switch is ON and accelerator pedal not depressed: 13-24%
Ignition switch is ON and WOT: Approx. 78%		 2AM
V Ignition switch is ON and accelerator pedal not depressed: 3.8-4.35 V
Ignition switch is ON and WOT: Approx. 1.1 V
TP2
(TP sensor No.2 signal voltage)		 % Ignition switch is ON and accelerator pedal not depressed: 15-36%
Ignition switch is ON and WOT: Approx. 88%		 2AI
V Ignition switch is ON and accelerator pedal not depressed: 0.75-1.8 V
Ignition switch is ON and WOT: Approx. 4.4 V
TPCT
(Relative throttle position)		 V Ignition switch is ON: 0 V 2AI, 2AM
VPWR
(Battery positive voltage)		 V Ignition switch is ON: B+ -
VSS
(Vehicle speed)		 KPH or MPH Vehicle speed is 20 km/h {12 mph}:20 KPH {12MPH}
Vehicle speed is 40 km/h {25 mph}: 40 KPH {25 MPH}
  • Perform applicable DTC troubleshooting

    (See DTC TABLE ).

 -
VT ACT1
(Actual valve timing - RH)		 ° Idling: 0° 2AE, 2AD
VT ACT2
(Actual valve timing - LH)		 ° Idling: 0° 2AB, 2AA
VT DIFF1
(Difference between actual and target valve timing - RH)		 ° Idling: 0° 2AE, 2AD
VT DIFF2
(Difference between actual and target valve timing - LH)		 ° Idling: 0° 2AB, 2AA
VT DUTY1
(OCV control signal - RH)		 % Idling: 0% 2AE, 2AD
VT DUTY2
(OCV control signal - LH)		 % Idling: 0% 2AB, 2AA
(1) MTX
(2) California emission regulation applicable model
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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.