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PCM INSPECTION [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7*# 307683-, JM8 LW28J**# 301514-, JM8 LW28A**# 301514- (Assumed))

BME014018880W01

  Caution

  • The PCM terminal voltages vary with measuring conditions and vehicle conditions. Always carry out a total inspection of the input systems, output systems, and PCM to determine the cause of trouble. Otherwise, diagnosis will be incorrect.

## PCM Inspection Using the SST (WDS or equivalent)

  Note

  • PIDs for the following parts are not available on this model. Go to the appropriate part inspection page.

  - CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7*# 307683-, JM8 LW28J**# 301514-, JM8 LW28A**# 301514- (Assumed)).)
  - Main relay (See RELAY INSPECTION.)

1. Connect the WDS or equivalent to the DLC-2. (See ON-BOARD DIAGNOSTIC TEST [AJ].)

2. Turn the ignition switch to ON.

3. Measure the value.

  • If the value is not within the specification, follow the instructions in Action column.

PID/DATA MONITOR table (Reference)

Parameter Name | Unit/ Condition | Condition/Specification (Reference) | Inspection item | PCM terminal
--- | --- | --- | --- | ---
AC_REQ (A/C switch) | On/Off | A/C and fan operating: On A/C not operating: Off | The following PIDs: RPM, TP, ECT | 5
ACCS (A/C relay) | On/Off | A/C operating: On IG SW ON: Off | The following PIDs: RPM, TP, ECT | 47
ALTF (Generator field coil control duty value) | % | IG SW ON: 0% Idle: 0-100% Generator operating → E/L ON: Duty value rises | The following PIDs: IAT, RPM, ALTT V | 36
ALTT V (Generator output voltage) | V | IG SW ON: 0 V Idle: 14-16 V | The following PIDs: IAT, RPM, ALTF Generator | 63
ARPMDES (Target engine speed) | RPM | Idle: Indicate the target engine speed | Perform "ON-BOARD DIAGNOSTIC TEST" | -
B+ (Battery positive voltage) | V | IG SW ON: B+ | Battery | 86
BARO (Barometric pressure) | Pa | IG SW ON: Indicate the barometric pressure | EGR boost sensor | 37
V | Less than 400 m {1.13 ft} above sea level: 4.1-4.3 V
BARO/EGR (EGR boost sensor solenoid valve) | On/Off | Ignition switch ON: Off Idle: Off | EGR boost sensor solenoid valve | 93
BOO (Brake switch) | On/Off | Brake pedal depressed: On Brake pedal released: Off | Brake switch | 82
CATT11_DSD (Estimated catalytic converter temperature) | °C or °F | Indicate the estimated catalytic converter temperature | The following PIDs: BARO, ECT, IAT, MAF, RPM | -
CATT21_DSD (Estimated catalytic converter temperature) | °C or °F | Indicate the estimated catalytic converter temperature | The following PIDs: BARO, ECT, IAT, MAF, RPM | -
CHRGLP (Generator warning light) | On/Off | IG SW ON: On Idle: Off | Generator warning light | 65
COLP (Refrigerant pressure switch (medium pressure switch)) | On/Off | Refrigerant pressure is the threshold or more: On Refrigerant pressure is the threshold or less: Off | Refrigerant pressure switch (medium pressure switch) | 30
DTCCNT (Number of DTC detected) | - | Number of DTCs stored Normal: 0 | Perform applicable DTC troubleshooting. | -
ECT (Engine coolant temperature) | °C or °F | IG SW ON: Indicate the engine coolant temperature | ECT sensor | 41
V | ECT 20 °C {68 °F}: 2.9-3.1 V After warm up: 0.2-1.0 V
EQ_RAT11_DSD (Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio) | - | Idling after warm-up: Approx.1 | HO2S (Front, LH/RH) | -
EVAPCP (Purge solenoid valve duty value) | % | IG SW ON: 0% | The following PIDs: IAT, RPM, ECT, MAF, TP, BARO, O2S11, O2S21 | 85
FAN_DUTY (Fan control signal) | % | ECT below 100 °C {212 °F}: 0% ECT above 100 °C {212 °F}: 35-100% | Inspect ECT sensor | 69
FP (Fuel pump relay) | On/Off | IG SW ON: Off Idle: On Cranking: On | The following PID: RPM | 95*1, 67*2
FUELPW (Fuel injection duration) | s | IG SW ON: 0 ms Idle: 1.5-3.0 ms | PIDs for input signals | 48, 49, 50, 74, 75, 76
FUELSYS1 (Fuel system status (RH)) | OL / CL / OL_Drive / OL_Fault / CL_Fault | Idling after warm-up: CL | The following PID: MAF, IAT, ECT, RPM, TP, O2S11, O2S12, O2S21, O2S22, BARO, VSS, PSP, ALTF, ACCS, IMCC, BOO, B+ | -
FUELSYS 2 (Fuel system status (RH)) | OL / CL / OL_Drive / OL_Fault / CL_Fault | Idling after warm-up: CL | The following PID: MAF, IAT, ECT, RPM, TP, O2S11, O2S12, O2S21, O2S22, BARO, VSS, PSP, ALTF, ACCS, IMCC, BOO, B+ | -
GENVDSD (Target generator voltage) | V | Ignition switch is turned to the On position: Approx. 1.0 V or less Idling (no electrical load): Approx.14 V (This is an internal calculation value and differs from the terminal voltage.) | The following PIDs: ECT, IAT, RPM, VSS, ALTT V, VPWR Generator | -
HTR11 (HO2S heater (Front, RH)) | On/Off | Ignition switch ON (engine stopped): Off Specified period after engine start with ECT 0-40 °C {32-104 °F}: On Others alternate: On and Off | The following PIDs: ECT, MAF | 83
HTR12 (HO2S heater (Rear, RH))*3 | On/Off | Idle: On RHO2S heater malfunctioning: Off | The following PIDs: ECT, MAF | 57
HTR21 (HO2S heater (Front, LH)) | On/Off | Ignition switch ON (engine stopped): Off Specified period after engine start with ECT 0-40 °C {32-104 °F}: On Others alternate: On and Off | The following PIDs: ECT, MAF | 84
HTR22 (HO2S heater (Rear, LH))*3 | On/Off | Idle: On RHO2S heater malfunctioning: Off | The following PIDs: ECT, MAF | 58
IAC (IAC valve) | % | IG SW ON: 0% Idle: 25-40% | The following PIDs: IAT, RPM, ECT, MAF, TP, PSP, TEST | 88
IAT (Intake air temperature) | °C or °F | IG SW ON: Indicate the intake air temperature | IAT sensor | 15
V | IAT 20 °C {68 °F}: 2.3-2.5 V IAT 30 °C {86 °F}: 1.8-2.0 V
IMCC (IMCC actuator) | % | Idle: 0% Engine speed above 3,750-5,560 rpm: 100% → 50% | The following PID: RPM | 97
INGEAR (Gears are engaged.) | On/Off | P or N position: Off Others: On | TR switch | -
IVS (CTP condition) | Idle / Off Idle | Idling: Idle Other than idling: Off Idle | The following PIDs: TP | 40
KNOCKR (Spark retard value to prevent knocking) | °(DEG) | Idle: 0 ° | PIDs for input signals | 3, 81
LOAD (Calculated engine load) | % | Idle: 18-20% Engine speed at 2,500 rpm: 17-19% | Perform "ON-BOARD DIAGNOSTIC TEST" | -
LONGFT1 (Current long fuel trim (RH) adjustment) | % | Idle: -20-20% | Perform "ON-BOARD DIAGNOSTIC TEST" | -
LONGFT2 (Current long fuel trim (LH) adjustment) | % | Idle: -20-20% | Perform "ON-BOARD DIAGNOSTIC TEST" | -
MAF (Intake airflow amount) | g/s | Idle:3.3-4.7 g/s Engine speed at 2,500 rpm: 12.1-15.0 g/s | MAF sensor | 11
V | IG SW ON: 0.0-0.1 V Idle: 0.5-0.8 V
MIL (Malfunction indicator light) | On/Off | IG SW ON: On DTC output: On No DTC output: Off | MIL | 68
MIL_DIS (Travelled distance since MIL illuminate) | km or mi | Indicate the travelled distance since MIL illuminate Normal: 0 km {0 mi} | The following PIDs: DTCCNT, MIL Perform applicable DTC troubleshooting. | -
O2S11 (HO2S (Front, RH)) | V | IG SW ON: 0-1.0 V Idle (After warm up): 0-1.0 V Acceleration: 0.5-1.0 V Deceleration: 0-0.5 V | HO2S (Front, RH) | 18
O2S12 (HO2S (Rear, RH))*3 | V | IG SW ON: 0-1.0 V Idle (After warm up): 0-1.0 V Acceleration: 0.5-1.0 V Deceleration: 0-0.5 V | HO2S (Rear, RH) | 44
O2S21 (HO2S (Front, LH)) | V | IG SW ON: 0-1.0 V After warm up: 0-1.0 V Acceleration: 0.5-1.0 V Deceleration: 0-0.5 V | HO2S (Front, LH) | 19
O2S22 (HO2S (Rear, LH))*3 | V | IG SW ON: 0-1.0 V After warms up: 0-1.0 V Acceleration: 0.5-1.0 V Deceleration: 0-0.5 V | HO2S (Rear, LH) | 45
PSP (PSP switch) | High/Low | Steering wheel at straight ahead position: Low Steering wheel fully turned: High | PSP switch | 55
RFCFLAG (Readiness Function Code) | Learnt/Not Learnt | Idling (after running PCM adaptive memory procedure drive mode): Learnt Right after the negative battery cable is disconnected (before running PCM adaptive memory procedure drive mode): Not Learnt | Perform DRIVE MODE 1 | -
RO2FT1 (HO2S (Rear, RH) fuel trim)*3 | - | Indicate the HO2S (Rear, RH) fuel trim | The following PID: O2S12 | -
RO2FT2 (HO2S (Rear, LH) fuel trim)*3 | - | Indicate the HO2S (Rear, LH) fuel trim | The following PID: O2S12 | -
RPM (Engine speed) | RPM | Idle: Indicate the engine speed | CKP sensor | 27, 1
SEGRP (EGR valve (stepping motor) position) | - | IG SW ON: 0 (step) Idle: 0 (step) Cranking: 0-60 (steps) | The following PIDs: ECT, TP | 98, 72, 73, 99
SEGRP DSD (EGR valve position desired) | % | EGR not operating: 0% EGR operating: 0-100% | The following PID - MAF, TP, ECT, RPM, VSS | -
SHRTFT1 (Short term fuel trim (RH)) | % | Idle: -20-20% | Perform "ON-BOARD DIAGNOSTIC TEST" | -
SHRTFT11 (Short term fuel trim (Front, RH)) | % | Indicate the short term fuel trim (Front, RH) | Perform "ON-BOARD DIAGNOSTIC TEST" | 18
SHRTFT12 (Short term fuel trim (Rear, RH))*3 | % | Indicate the short term fuel trim (Front, LH) | Perform "ON-BOARD DIAGNOSTIC TEST" | 44
SHRTFT2 (Short term fuel trim (LH)) | % | Idle: -20-20% | Perform "ON-BOARD DIAGNOSTIC TEST" | -
SHRTFT21 (Short term fuel trim (Front, LH)) | % | Indicate the short term fuel trim (Rear, RH) | Perform "ON-BOARD DIAGNOSTIC TEST" | 19
SHRTFT22 (Short term fuel trim (Rear, LH))*3 | % | Indicate the short term fuel trim (Rear, LH) | Perform "ON-BOARD DIAGNOSTIC TEST" | 45
SPARKADV (Ignition timing) | °(BTDC) | Indicate the ignition timing | The following PIDs: MAF V, IAT V, RPM, TP V, ECT V, PSP SW, NL SW, CLT SW, A/C SW, TEN, CMP Perform Engine tune-up. | 52 for #1 104 for #2 102 for #3 78 for #4 103 for #5
101 for #6
test (Test mode) | On/Off | During test mode: On Other than test mode: Off | - | -
TIRESIZE (Tire revolution per mile) | - | Indicate the tire revolution per mile | - | -
TP (TP sensor signal voltage) | V | CTP: 0.7-1.2 V WOT: 4.15-4.8 V | TP sensor | 40
TP REL (Throttle position signal (relative value)) | % | CTP: Approx. 0% WOT: Approx. 100% | TP sensor | 40
TP1 (Throttle position) | % | Indicate the throttle position | TP sensor | 40
TPCT (TP sensor voltage at CTP) | V | CTP: 0.7-1.2 V | TP sensor | -
VSS (Vehicle speed) | KPH or MPH | Vehicle running: Indicate the vehicle speed | Inspect VSS | 79

  *1 :
Immobilizer system equipped
  *2 :
Immobilizer system not equipped
  *3 :
With HO2S (Rear)

## Freeze Frame Data Monitor Table

  Note

  • FFD is a snapshot of the conditions that are present when DTC or PENDING CODE is stored. Once FFD is stored, this data will remain in PCM memory even if another emission related DTC or PENDING CODE is stored additionally, except for Misfire or Fuel System related DTC or PENDING CODE. Once Misfire or Fuel System related DTC or PENDING CODE is stored, it will overwrite any previous data and the FFD will not be further overwritten. When DTC associated with the FFD is erased or PCM is reset, new FFD can be stored.

Full names | Unit
--- | ---
DTC that caused required Freeze Frame Data storage | No unit
Fuel system loop status | Refer to list below.
LOAD | %
ECT | °C | °F
Short term fuel trim (RH, LH) | %
Long term fuel trim (RH, LH) | %
Engine speed | rpm
Vehicle speed | km/h | mph
Spark advance | ° (BTDC)
IAT | °C | °F
MAF | g/s
Absolute TP | %
Time since engine start | s
EGR valve control signal | %
Purge solenoid valve control signal | %
Number of warm-ups since DTCs cleared | No unit
Distance travelled since DTCs cleared | km | miles
BARO | kPa
Estimated catalyst converter temperature (RH, LH) | °C | °F
PCM voltage | V
Absolute load value | %
Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio | No unit
Relative TP | %