#
PCM INSPECTION

BHE014018880W02

## Not Using the WDS or Equivalent

  Note

  • The PCM terminal voltage can vary with conditions when measuring and changes due to age deterioration on the vehicle, causing false diagnosis. Therefore a comprehensive inspection of the input and output systems, and the PCM is necessary to determine where the malfunction occurs.

### PCM terminal voltage table (Reference)

Terminal | Signal name | Connected to | Measurement condition | Voltage (V) | Inspection item(s)
--- | --- | --- | --- | --- | ---
1A | - | - | - | - | -
1B | Throttle control (+) | Throttle body (Throttle valve actuator) | (See Inspection Using An Oscilloscope (Reference).) | • Throttle valve actuator • Related wiring harnesses
1C | Throttle control (-) | Throttle body (Throttle valve actuator) | (SeeInspection Using An Oscilloscope (Reference).) | • Throttle valve actuator • Related wiring harnesses
1D | SSV switch | SSV switch | Idling after warm-up | The SSV actuator rod is completely pulled out. | 1.0 or less | • SSV switch • Related wiring harnesses
The SSV actuator rod is pulled in. | B+
1E | - | - | - | - | -
1F | Knock sensor (-) | Knock sensor | Under any condition | 1.0 or less | • Knock sensor • Related wiring harnesses
1G | Shield | - | - | - | -
1H | - | - | - | - | -
1I | - | - | - | - | -
1J | Throttle valve opening angle No. 1 | Throttle body (TP sensor) | Ignition switch at ON | When the accelerator pedal is depressed. | 3.825-4.095 | • TP sensor • Related wiring harnesses
When the accelerator pedal is released. | 0.4-0.8
1K | - | - | - | - | -
1L | SSV control | SSV solenoid valve | High engine speed and high load after warm-up | 1.0 or less | • SSV solenoid valve • Related wiring harnesses
Idling | B+
1M | Throttle valve opening angle No. 2 | Throttle body (TP sensor) | Ignition switch at ON | When the accelerator pedal is depressed. | 4.033-4.303 | • TP sensor • Related wiring harnesses
When the accelerator pedal is released. | 1.18-1.78
1N | - | - | - | - | -
1O | AIR control | AIR solenoid valve | During the specified period after cold start | 1.0 or less | • AIR solenoid valve • Related wiring harnesses
Idling after warm-up | B+
1P | - | - | - | - | -
1Q | TP sensor power supply | Throttle body (TP sensor) | Under any condition | Approx. 5.0 | • TP sensor • Related wiring harnesses
1R | - | - | - | - | -
1S | APV position sensor power supply *3 | APV motor (APV position sensor) | Under any condition | Approx. 5.0 | • APV position sensor • Related wiring harnesses
-*4 | - | - | - | -
1T | Knock sensor (+) | Knock sensor | Idling after warm-up | Approx. 2.45 | • Knock sensor • Related wiring harnesses
1U | Sensor GND | ECT sensor, rear HO2S, metering oil pump switch, APV position sensor | Under any condition | 1.0 or less | • Related wiring harnesses
1V | Front HO2S heater control | Front HO2S heater | (See Inspection Using An Oscilloscope (Reference).) | • Front HO2S • Related wiring harnesses
1W | VDI control | VDI solenoid valve | High engine speed after warm-up | 1.0 or less | • VDI solenoid valve • Related wiring harnesses
Idling | B+
1X | - | - | - | - | -
1Y | - | - | - | - | -
1Z | - | - | - | - | -
2A | Rear HO2S heater control | Rear HO2S heater | Idling after warm-up | 1.0 or less | • Rear HO2S • Related wiring harnesses
High load | B+
2B | Front HO2S | Front HO2S | Idling after warm-up | Approx. 2.8 | • Front HO2S • Related wiring harnesses
2C | Front HO2S | Front HO2S | Idling after warm-up | Approx. 2.4 | • Front HO2S • Related wiring harnesses
2D | Fuel injector (RS) control | Fuel injector (RS) | (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector • Related wiring harnesses
2E | Oil pressure switch | Oil pressure switch | Idling | The engine oil pressure is at the specified or more. | B+ | • Oil pressure switch • Related wiring harnesses
The engine oil pressure is less than the specified. | 1.0 or less
2F | TP sensor GND | Throttle body (TP sensor) | Under any condition | 1.0 or less | • TP sensor • Related wiring harnesses
2G | Fuel injector (FS) control | Fuel injector (FS) | (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector • Related wiring harnesses
2H | Shield | - | - | - | -
2I | Field coil control | Generator (D terminal) | (See Inspection Using An Oscilloscope (Reference).) | • Generator • Related wiring harnesses
2J | Fuel injector (RP1) control | Fuel injector (RP1) | (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector • Related wiring harnesses
2K | ECT sensor | ECT sensor | Ignition switch at ON | ECT 0 °C {32 °F} | Approx. 4.0 | • ECT sensor • Related wiring harnesses
ECT 20 °C {68 °F} | Approx. 3.1
ECT 40 °C {104 °F} | Approx. 2.1
ECT 60 °C {140 °F} | Approx. 1.4
ECT 80 °C {176 °F} | Approx. 0.9
ECT 100 °C {212 °F} | Approx. 0.5
2L | - | - | - | - | -
2M | Fuel injector (FP1) control | Fuel injector (FP1) | (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector • Related wiring harnesses
2N | Metering oil pump switch | Metering oil pump (Metering oil pump switch) | Idling | Only when the metering oil pump is commanded to maximum position | B+ | • Metering oil pump switch • Related wiring harnesses
Except above | 1.0 or less
2O | Neutral switch*1 | Neutral switch | Idling | Neutral | 1.0 or less | • Neutral switch • Related wiring harnesses
Except above | B+
-*2 | - | - | - | -
2P | Purge solenoid valve control | Purge solenoid valve | (See Inspection Using An Oscilloscope (Reference).) | • Purge solenoid valve • Related wiring harnesses
2Q | Rear HO2S | Rear HO2S | Idling after warm-up | 0.5-1.0 | • Rear HO2S • Related wiring harnesses
2R | Oil-level switch | Oil-level switch | Ignition switch at ON | The engine oil amount is more than the L mark on the dipstick. | 1.0 or less | • Oil-level switch • Related wiring harnesses
The engine oil amount is low. | B+
2S | - | - | - | - | -
2T | Generator output voltage | Generator (Terminal P) | (See Inspection Using An Oscilloscope (Reference).) | • Generator • Related wiring harnesses
2U | Eccentric shaft position sensor (+) | Eccentric shaft position sensor | (See Inspection Using An Oscilloscope (Reference).) | • Eccentric shaft position sensor • Related wiring harnesses
2V | Metering oil pump control 3 | Metering oil pump | (See Inspection Using An Oscilloscope (Reference).) | • Metering oil pump • Related wiring harnesses
2W | Metering oil pump control 1 | Metering oil pump | (See Inspection Using An Oscilloscope (Reference).) | • Metering oil pump • Related wiring harnesses
2X | Eccentric shaft position sensor (-) | Eccentric shaft position sensor | Under any condition | 1.0 or less | • Eccentric shaft position sensor • Related wiring harnesses
2Y | Metering oil pump control 4 | Metering oil pump | (See Inspection Using An Oscilloscope (Reference).) | • Metering oil pump • Related wiring harnesses
2Z | Ignition coil (L/R) control | Ignition coil | (See Inspection Using An Oscilloscope (Reference).) | • Ignition coil • Related wiring harnesses
2AA | Ignition coil (L/F) control | Ignition coil | (See Inspection Using An Oscilloscope (Reference).) | • Ignition coil • Related wiring harnesses
2AB | Metering oil pump control 2 | Metering oil pump | (See Inspection Using An Oscilloscope (Reference).) | • Metering oil pump • Related wiring harnesses
2AC | Ignition coil (T/R) control | Ignition coil | (See Inspection Using An Oscilloscope (Reference).) | • Ignition coil • Related wiring harnesses
2AD | Ignition coil (T/F) control | Ignition coil | (See Inspection Using An Oscilloscope (Reference).) | • Ignition coil • Related wiring harnesses
3A | Fuel injector (FP2) control*3 | Fuel injector (FP2) | (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector • Related wiring harnesses
-*4 | - | - | - | -
3B | APV opening angle*3 | APV motor (APV position sensor) | High engine speed | 1.5 or less | • APV position sensor • Related wiring harnesses
Idling | 1.5 or more
-*4 | - | - | - | -
3C | - | - | - | - | -
3D | Fuel injector (RP2) control *3 | Fuel injector (RP2) | (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector • Related wiring harnesses
-*4 | - | - | - | -
3E | - | - | - | - | -
3F | - | - | - | - | -
3G | APV motor control (+)*3 | APV motor | (See Inspection Using An Oscilloscope (Reference).) | • APV motor • Related wiring harnesses
-*4 | - | - | - | -
3H | - | - | - | - | -
3I | - | - | - | - | -
3J | APV motor control (-)*3 | APV motor | (See Inspection Using An Oscilloscope (Reference).) | • APV motor • Related wiring harnesses
-*4 | - | - | - | -
3K | - | - | - | - | -
3L | - | - | - | - | -
3M | - | - | - | - | -
3N | - | - | - | - | -
3O | - | - | - | - | -
3P | - | - | - | - | -
3Q | - | - | - | - | -
3R | - | - | - | - | -
3S | - | - | - | - | -
3T | - | - | - | - | -
3U | - | - | - | - | -
3 V | - | - | - | - | -
3W | - | - | - | - | -
3X | - | - | - | - | -
3Y | - | - | - | - | -
3Z | - | - | - | - | -
4A | GND | GND | Under any condition | 1.0 or less | • Related wiring harnesses
4B | - | - | - | - | -
4C | Drive-by-wire relay control | Drive-by-wire relay | Ignition switch at ON | When the drive-by-wire system has a malfunction. | 1.0 or less | • Drive-by-wire relay • Related wiring harnesses
Except above | B+
4D | - | - | - | - | -
4E | Main relay control | Main relay | Ignition switch at ON | No malfunction | 1.0 or less | • Main relay • Related wiring harnesses
Malfunctioning | B+
4F | Clutch switch*1 | Clutch switch | Ignition switch at ON | The clutch pedal is depressed. | 1.0 or less | • Clutch switch • Related wiring harnesses
Except above | B+
-*2 | - | - | - | -
4G | - | - | - | - | -
4H | - | - | - | - | -
4I | - | - | - | - | -
4J | GND | GND | Under any condition | 1.0 or less | • Related wiring harnesses
4K | BARO sensor power supply | BARO sensor | Under any condition | Approx. 5.0 | • BARO sensor • Related wiring harnesses
4L | - | - | - | - | -
4M | Fuel pump speed control | Fuel pump speed control relay | High engine speed and high load | 1.0 or less | • Fuel pump speed control relay • Related wiring harnesses
Idling | B+
4N | - | - | - | - | -
4O | AIR pump control | AIR pump relay | During the specified period after sold start | 1.0 or less | • AIR pump relay • Related wiring harnesses
Idling after warm-up | B+
4P | Brake switch*7 | Brake switch | When the brake pedal is depressed. | B+ | • Brake switch • Related wiring harnesses
Except above | 1.0 or less
-*8 | - | - | - | -
4Q | IG1 | Ignition relay | Ignition switch at ON | B+ | • Ignition relay • Related wiring harnesses
Except above | 1.0 or less
4R | - | - | - | - | -
4S | CAN_L | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
4T | Coolant level switch | Coolant level switch | Ignition switch at ON | Engine coolant level in the coolant reserve tank is more than the L mark. | B+ | • Coolant level switch • Related wiring harnesses
Engine coolant level in the coolant reserve tank is at the L mark or less. | 1.0 or less
4U | Sensor GND | MAF sensor, BARO sensor, IAT sensor | Under any condition | 1.0 or less | • Related wiring harnesses
4V | CAN_H | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
4W | A/C control | Refrigerant pressure switch (high pressure and low pressure) | Idling | A/C switch off | B+ | • Refrigerant pressure switch • Related wiring harnesses
A/C switch and fan switch on | 1.0 or less
4X | APP sensor 2 power supply | APP sensor | Under any condition | Approx. 5.0 | • APP sensor • Related wiring harnesses
4Y | APP sensor 1 power supply | APP sensor | Under any condition | Approx. 5.0 | • APP sensor • Related wiring harnesses
4Z | A/C load | Refrigerant pressure switch (medium pressure) | Idling | Refrigerant pressure is 1.11 MPa {11.3 kgf/cm2, 161 psi} or less. | B+ | • Refrigerant pressure switch • Related wiring harnesses
Refrigerant pressure is 1.60 MPa {16.3 kgf/cm2, 232 psi} or more. | 1.0 or less
5A | Starter relay*10 | Starter relay | Ignition switch is turned to START using key registered in immobilizer system | 1.0 or less | • Starter relay • Related wiring harnesses
Ignition switch is turned to START using key not registered in immobilizer system | B+
-*11 | - | - | - | -
5B | - | - | - | - | -
5C | APP sensor 2 | APP sensor | Ignition switch at ON | When the accelerator pedal is depressed. | 3.23-3.38 | • APP sensor • Related wiring harnesses
When the accelerator pedal is released. | 1.005-1.105
5D | GND | GND | Under any condition | 1.0 or less | • Related wiring harnesses
5E | - | - | - | - | -
5F | APP sensor 1 | APP sensor | Ignition switch at ON | When the accelerator pedal is depressed. | 3.78-3.93 | • APP sensor • Related wiring harnesses
When the accelerator pedal is released. | 1.555-1.655
5G | - | - | - | - | -
5H | Drive-by-wire relay control | Drive-by-wire relay | Ignition switch at ON | There is a malfunction in the drive-by-wire system. | 1.0 or less | • Drive-by-wire relay • Related wiring harnesses
Except above | B+
5I | - | - | - | - | -
5J | Backup power supply (KAM) | Battery | Under any condition | B+ | • Battery • Related wiring harnesses
5K | IAT sensor | MAF/IAT sensor | Ignition switch at ON | IAT 0 °C {32 °F} | Approx. 3.4 | • IAT sensor • Related wiring harnesses
IAT 20 °C {68 °F} | Approx. 2.4
IAT 40 °C {104 °F} | Approx. 1.5
IAT 60 °C {140 °F} | Approx. 0.9
IAT 80 °C {176 °F} | Approx. 0.5
IAT 100 °C {212 °F} | Approx. 0.3
5L | Fuel pump relay control*11 | Fuel pump relay | Engine runs. | 1.0 or less | • Fuel pump relay • Related wiring harnesses
Engine stops. | B+
-*10 | - | - | - | -
5M | - | - | - | - | -
5N | MAF sensor | MAF sensor | MT | Idling | 1.16-1.23 | • MAF sensor • Related wiring harnesses
2,500 rpm | 1.49-1.64
AT | Idling | 1.21-1.29
2,500 rpm | 1.54-1.67
5O | GND | GND | Under any condition | 1.0 or less | • Related wiring harnesses
5P | Fuel pump relay control*10 | Fuel pump relay | Engine runs. | 1.0 or less | • Fuel pump relay • Related wiring harnesses
Engine stops. | B+
-*11 | - | - | - | -
5Q | - | - | - | - | -
5R | GND | GND | Under any condition | 1.0 or less | • Related wiring harnesses
5S | BARO sensor | BARO sensor | Ignition switch at ON | Altitude:0 m {0 ft} | 3.8-4.2*9 | • BARO sensor • Related wiring harnesses
Altitude:305 m {1,000 ft} | 3.6-4.0*9
Altitude:610 m {2,000 ft} | 3.5-3.9*9
Altitude:914 m {3,000 ft} | 3.4-3.7*9
Altitude:1,219 m {4,000 ft} | 3.2-3.6*9
Altitude:1,524 m {5,000 ft} | 3.1-3.5*9
Altitude:1,829 m {6,000 ft} | 3.0-3.4*9
Altitude:2,134 m {7,000 ft} | 2.9-3.3*9
5T | GND | GND | Under any condition | 1.0 or less | • Related wiring harnesses
5U | MAF sensor GND | MAF sensor | Under any condition | 1.0 or less | • MAF sensor • Related wiring harnesses
5V | Cruise control switch*5 | Cruise control switch | Ignition switch at ON | CRUISE MAIN switch pressed in | Approx. 0 | • Cruise control switch • Related wiring harnesses
CANCEL switch pressed in | 0.25-0.26
SET/COAST switch pressed in | 1.16-1.20
RES/ACCEL switch pressed in | 2.47-2.53
Except above | Approx. 5
-*6 | - | - | - | -
5W | ECT (A/C unit) | A/C unit | Ignition switch at ON | ECT 0 °C {32 °F} | Approx. 4.0 | • A/C unit • Related wiring harnesses
ECT 20 °C {68 °F} | Approx. 3.1
ECT 40 °C {104 °F} | Approx. 2.1
ECT 60 °C {140 °F} | Approx. 1.4
ECT 80 °C {176 °F} | Approx. 0.9
ECT 100 °C {212 °F} | Approx. 0.5
5X | Electrical fan control | Cooling fan relay | The cooling fan is operating. | 1.0 or less | • Cooling fan relay • Related wiring harnesses
Except above | B+
5Y | - | - | - | - | -
5Z | VFAD control*3 | VFAD solenoid valve | High engine speed | 1.0 or less | • VFAD solenoid valve • Related wiring harnesses
Idling | B+
-*4 | - | - | - | -
5AA | A/C relay | A/C relay | Ignition switch at ON | A/C switch on and fan switch at 1st or higher | 1.0 or less | • A/C relay • Related wiring harnesses
Except above | B+
5AB | APP sensor GND 2 | APP sensor | Under any condition | 1.0 or less | • APP sensor • Related wiring harnesses
5AC | Power supply | Main relay | Under any condition | B+ | • Main relay • Related wiring harnesses
5AD | Electrical fan control | Cooling fan relay | The cooling fan is operating at high speed. | 1.0 or less | • Cooling fan relay • Related wiring harnesses
Except above | B+
5AE | APP sensor GND 1 | APP sensor | Under any condition | 1.0 or less | • APP sensor • Related wiring harnesses
5AF | Power supply | Main relay | Under any condition | B+ | • Main relay • Related wiring harnesses

  *1 :
MT
  *2 :
AT
  *3 :
13B-MSP (High Power)
  *4 :
13B-MSP (Standard Power)
  *5 :
With cruise control system
  *6 :
Without cruise control system
  *7 :
With cruise control system and DSC
  *8 :
Without cruise control system and DSC
  *9 :
The voltage may vary excessively depending on the weather or battery conditions.
  *10 :
With Immobilizer system
  *11 :
Without Immobilizer system

## Inspection Using An Oscilloscope (Reference)

  Note

  • The duty ratio for the wave pattern can vary with the control conditions. Therefore determine comprehensively where the malfunction occurs among the input systems, output systems, and the PCM.

### Throttle control (+)

  • Terminal connected: 1B (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 0.4 ms/DIV (X), DC range
  • Measurement condition: Ignition switch at ON

### Throttle control (-)

  • Terminal connected1C (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 1 ms/DIV (X), DC range
  • Measurement condition: As soon as the accelerator pedal is fully released from the fully depressed position while the ignition switch is at ON (engine off).

### Front HO2S heater control

  • Terminal connected:1V (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 50 ms/DIV (X), DC range
  • Measurement condition: Idling after warm-up (no load)

### Fuel injector (FS, RS) control

  • Terminal connected:
  FS: 2G (+)-Negative battery terminal
  RS: 2D (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 5 ms/DIV (X), DC range
  • Measurement condition: Racing after warm-up (no load)

### Field coil control (Generator)

  • Terminal connected: 2I (+)-Negative battery terminal
  • Oscilloscope setting: 0.5 V/DIV (Y): 1 ms/DIV (X), DC range
  • Measurement condition: Idling after warm-up (no load)

### Fuel injector (FP1, RP1) control

  • Terminal connected:
  FP1: 2M (+)-Negative battery terminal
  RP1: 2J (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 10 ms/DIV (X), DC range
  • Measurement condition: Idling after warm-up (no load)

  • Terminal connected:
  FP1: 2M (+)-Negative battery terminal
  RP1: 2J (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 10 ms/DIV (X), DC range
  • Measurement condition: Cranking while the engine is cold. (ECT: Approx. 20 °C {68 °F})

### Purge control

  • Terminal connected:2P (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 20 ms/DIV (X), DC range
  • Measurement condition: Idling after warm-up (no load)

  Note

  • Purge control might not be activated depending on the engine conditions.

### Generator output voltage

  • Terminal connected: 2T (+)-Negative battery terminal
  • Oscilloscope setting: 2 V/DIV (Y): 2 ms/DIV (X), DC range
  • Measurement condition: Idling after warm-up (no load)

### Eccentric shaft position sensor

  • Terminal connected: 2U (+)-Negative battery terminal
  • Oscilloscope setting: 2 V/DIV (Y): 5 ms/DIV (X), DC range
  • Measurement condition: Idling after warm-up (no load)

### Metering oil pump control 1

  • Terminal connected: 2W (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 2 ms/DIV (X), DC range
  • Measurement condition: Just after the ignition switch is off after warm-up (no load)

### Metering oil pump control 2

  • Terminal connected: 2AB (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 2 ms/DIV (X), DC range
  • Measurement condition: Just after the ignition switch is off after warm-up (no load)

### Metering oil pump control 3

  • Terminal connected: 2V (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 2 ms/DIV (X), DC range
  • Measurement condition: Just after the ignition switch is off after warm-up (no load)

### Metering oil pump control 4

  • Terminal connected: 2Y (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 2 ms/DIV (X), DC range
  • Measurement condition: Just after the ignition switch is off after warm-up (no load)

### Ignition coil (L/F, L/R, T/F, T/R)

  • Terminal connected:
  L/F: 2AA (+)-Negative battery terminal
  L/R: 2Z (+)-Negative battery terminal
  T/F: 2AD (+)-Negative battery terminal
  T/R: 2AC (+)-Negative battery terminal
  • Oscilloscope setting: 2 V/DIV (Y): 10 ms/DIV (X), DC range
  • Measurement condition: Idling after warm-up (no load)

### Fuel injector (FP2, RF2) control

  • Terminal connected:
  FP2: 3A (+)-Negative battery terminal
  RP2: 3D (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 5 ms/DIV (X), DC range
  • Measurement condition: Racing after warm-up (no load)

### APV motor control (+)

  • Terminal connected: 3G (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 20 ms/DIV (X), DC range
  • Measurement condition: Engine speed 6,250 rpm or more after warm-up (Approx. 2 s after the APV remains open)

### APV motor control (-)

  • Terminal connected: 3J (+)-Negative battery terminal
  • Oscilloscope setting: 5 V/DIV (Y): 20 ms/DIV (X), DC range
  • Measurement condition: Within 20 s from 2 s after the accelerator is released from the engine speed at 6,250 rpm or more after warm-up.

## Using the WDS or Equivalent

  Note

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

  – Main relay (See RELAY INSPECTION.)

1. Connect the WDS or equivalent 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.

  Note

  • The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device. If a monitored value of an output device is out of specification, inspect the monitored value of the input device related to the output control.
  • For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM terminal voltage.
  • The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are as follows.

  – ACCS, AIP RLY, ALTF, APV, ARPMDES, DEI, ETC_DSD, EVAPCP, FAN1, FAN2, FP, FPRR, FUELPW, GENVDSD, HTR11, HTR12, IASV, MOP POS, PACNTV, PREDELI, SSV, test

PID/DATA monitor table (reference)

Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) | Inspection item(s) | PCM terminal
--- | --- | --- | --- | ---
ACCS (A/C relay) | On/Off | • Ignition switch ON: Off • A/C switch ON and fan switch ON at idling: On | • The following PIDs – ACSW, ECT, IVS, PCM_T, RPM, TP, VSS • A/C relay | 5AA
ACSW (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 | • A/C switch | 4W
AIP RLY (AIR pump relay) | On/Off | • During the specified period after cold: On • Idling after warm-up: Off | • The following PIDs – CATT11_DSD, ECT, IAT • AIR pump relay | 4O
ALTF (Generator field coil control duty value) | % | • Ignition switch ON: 0% • Just after A/C switch ON and fan switch ON at idling: Duty value rises | • The following PIDs – ALTT V, B+, ECT, IAT, IVS, PCM_T, RPM, VSS | 2I
ALTT V (Generator output voltage) | V | • Ignition switch ON: 0 V • Idling: Approx. 14.9 V*1 (E/L not operating) | Generator. | 2T
APP (Accelerator pedal position) | % | • Accelerator pedal released: 0% • Accelerator pedal depressed: 100% | • The following PIDs – APP1, APP2 • APP sensor | -
APP1 (Accelerator pedal position) | % | • Accelerator pedal released: 31.1-33.1% • Accelerator pedal depressed: 75.6-78.6% | APP sensor | 5F
V | • Accelerator pedal released: 1.555-1.655 V • Accelerator pedal depressed: 3.78-3.93 V
APP2 (Accelerator pedal position) | % | • Accelerator pedal released: 20.1-22.1% • Accelerator pedal depressed: 64.6-67.6% | APP sensor | 5C
V | • Accelerator pedal released: 1.005-1.105 V • Accelerator pedal depressed: 3.23-3.38 V
APV (APV motor) | Opening/Closing | • High engine speed after warm-up: Opening • Except above: Closing | • The following PIDs – APV_POS, BARO, ECT, IAT, MAF, RPM, TP • APV motor | 3G, 3J
APV_POS (APV position sensor) | V | • High engine speed after warm-up: 1.5 V or less • Except above: 1.5 V or more | • APV position sensor | 3B
ARPMDES (Target engine speed) | RPM | MT • No load after warm-up: 750-850 rpm AT • No load after warm-up: 760-860 rpm | • The following PIDs – ACCS, ALTT V, B+, COLP, ECT, IAT, MAF, RPM, TP | -
B+ (Battery positive voltage) | V | • Ignition switch ON: B+ | • Battery | 5J
BARO (Barometric pressure) | kPa, Bar, psi | • Ignition switch ON: Indicate the atmospheric pressure | • BARO sensor | 5S
V | • Ignition switch ON – Altitude 0 m {0 ft}: 3.8-4.2 V*4 – Altitude 305 m {1,000 ft}: 3.6-4.0 V*4 – Altitude 610 m {2,000 ft}: 3.5-3.9 V*4 – Altitude 914 m {3,000 ft}: 3.4-3.7 V*4 – Altitude 1,219 m {4,000 ft}: 3.2-3.6 V*4 – Altitude 1,524 m {5,000 ft}: 3.1-3.5 V*4 – Altitude 1,829 m {6,000 ft}: 3.0-3.4 V*4 – Altitude 2,134 m {7,000 ft}: 2.9-3.3 V*4
BOO (Brake switch) | On/Off | • Brake pedal depressed: On • Brake pedal released: Off | • Brake switch | 4P
CATT11_DSD (Estimated catalytic converter temperature) | °C | °F | • Idling after warm-up: Approx. 531 °C {988 °F} | • The following PIDs – ECT, IAT, LOAD, RPM | -
CHRGLP (Generator warning light) | On/Off | • Ignition switch ON: On • Idling: Off | • Generator warning light | -
COLP (Refrigerant pressure switch (middle)) | On/Off | • Refrigerant pressure switch (middle) ON *2 at idling: On • Refrigerant pressure switch (middle) OFF*3 at idling: Off | • Refrigerant pressure switch | 4Z
CPP (Clutch pedal position) | On/Off | • Clutch pedal depressed: On • Clutch pedal released: Off | • CPP switch | 4F
CPP/PNP (Shift lever position) | Drive/Neutral | • Neutral position: Neutral • Except above: Drive | • Neutral switch | 2O
DEI (VDI solenoid valve) | On/Off | • Idling: Off • High engine speed after warm-up: On | • The following PID – RPM • VDI solenoid valve | 1W
DTC_CNT (Number of DTC detected) | - | - | - | -
ECT (Engine coolant temperature) | °C | °F | • Ignition switch at ON position: Indicate the ECT | • ECT sensor | 2K
V | • ECT 20 °C {68 °F}: Approx. 3.1 V • ECT 80 °C {176 °F}: Approx. 0.9 V
ECT_DES (Estimated ECT) | °C | °F | • Ignition switch at ON position: Indicate the estimated ECT | • The following PIDs – ECT, IAT, LOAD, MAF, VSS | -
EQ_RAT11 (Front HO2S) | - | • Idling after worm-up: Approx.1 | • Front HO2S | 2B, 2C
ETC_ACT (Electronic throttle control actual) | ° | • CTP: Approx. 6.3° • WOT: Approx. 83° | • The following PIDs – TP1, TP2 | -
ETC_DSD (Electronic throttle control desired) | ° | • CTP: Approx. 6.3° • WOT: Approx. 83° | • The following PIDs – APP, ECT_DES | -
% | • CTP: Approx. 7% • WOT: Approx. 100%
EVAPCP (Purge solenoid valve duty value) | % | • Ignition switch ON: 0% • Increase the engine speed: Duty value rises | • The following PIDs – BARO, ECT, FUELSYS, IAT, LOAD, MAF, RPM • Purge solenoid valve | 2P
FAN1 (Cooling fan control) | On/Off | • The cooling fan is operating: On • Except above: Off | • The following PIDs – ACSW, COLP, ECT, IAT, PCM_T • Cooling fan relay No.1 | 5X
FAN2 (Cooling fan control) | On/Off | • The cooling fan is operating at high speed: On • Except above: Off | • The following PIDs – ACSW, COLP, ECT, IAT, PCM_T • Cooling fan relay No.2 | 5AD
FDPDTC (Pending code caused FFD storage) | - | - | - | -
FP (Fuel pump relay) | On/Off | • Ignition switch ON: Off • Idling: On • Cranking: On | • The following PID – RPM • Fuel pump relay | 5P*5 5L*6
FPRR (Fuel pump speed control relay) | On/Off | • Ignition switch ON: Off • Idling: Off • Cranking: On | • The following PIDs – B+, BARO, ECT, IAT, MAF, O2S11, O2S12, RPM, TP • Fuel pump speed control relay | 4M
FUELPW (Fuel injector duration) | ms | • Cranking (before warm-up [ECT: 20 °C {68 °F}]): Approx. 48 ms • Cranking after warm-up: Approx. 9.6 ms • Idling after warm-up: 2.9-3.5 ms | • The following PIDs – ACSW, APP, B+, BARO, ECT, IAT, KNOCKR, MAF, O2S11, O2S12, RPM, TP, VSS • Fuel injector | 2J, 2M
FUELSYS (Fuel system status) | OL/CL/ OL Drive/ OL Fault/ CL Fault | • Idling after warm-up: CL | • The following PIDs – ACSW, APP, B+, BARO, ECT, IAT, KNOCKR, MAF, O2S11, O2S12, RPM, TP, VSS | -
GENVDSD (Generator voltage desired) | V | • Ignition switch ON: 0 V • Idling: Approx. 14.9 V*1 (E/L not operating) | • The following PIDs – ACSW, ALTT V, B+, BOO, ECT, IAT, PCM_T, RPM, VSS | -
HTR11 (Front HO2S heater) | On/Off | • Idling after warm-up: On | • The following PIDs – B+, ECT, IAT, LOAD, MAF • Front HO2S heater | 1V
HTR12 (Rear HO2S heater) | On/Off | • Idling after warm-up: On | • The following PIDs – B+, ECT, IAT, LOAD, MAF • Rear HO2S heater | 2A
IAC (Idle air control) | % | • Ignition switch ON: Approx. 26% • Idling after warm-up: Approx. 21% | • The following PIDs – ACSW, ALTT V, APP, ARPMDES, COLP, ECT, EVAPCP, RPM, VSS • Throttle valve actuator | 1B, 1C
IASV (VFAD solenoid valve) | On/Off | • High engine speed: On • Idling: Off | • The following PID – RPM • VFAD solenoid valve | 5Z
IAT (Intake air temperature) | °C | °F | • Ignition switch at ON position: Indicate the IAT | • IAT sensor | 5K
V | • IAT 20 °C {68 °F}: Approx. 2.4 V • IAT 40 °C {104 °F}: Approx. 1.5 V
INGEAR (In gear) | On/Off | MT • When the following conditions are satisfied: On – Engine runs – Not neutral – Clutch pedal released • Except above: Off AT • When the following conditions are satisfied: On – Engine runs – Driving range • Except above: Off | • The following PIDs – CPP, CPP/PNP, RPM | -
IVS (CTP condition) | Idle/ Off Idle | • CTP: Idle • Except above: Off idle | • The following PID – APP | -
KNOCKR (Knocking retard) | ° | • Ignition switch ON: 0 ° • Idling: 0 ° | • KS | 1T
LOAD (Engine load) | % | MT • Idling: 18.0-25.0% • Engine speed 2,500 rpm (no load): 13.5-19.5% AT • Idling: 20.0-28.0% • Engine speed 2,500 rpm (no load): 15.0-21.0% | • The following PIDs – BARO, IAT, MAF, RPM | -
LONGFT1 (long term fuel trim) | % | • Idling after warm-up: Approx.-12.5-12.5% | • The following PIDs – ECT, LOAD, MAF, RPM, SHRTFT | -
MAF (Mass airflow) | g/s | MT • Idling after warm-up: 3.8-4.7 g/s • Engine speed 2,500 rpm (no load): 8.7-11.7 g/s AT • Idling after warm-up: 4.4-5.3 g/s • Engine speed 2,500 rpm (no load): 9.5-12.5 g/s | • MAF sensor | 5N
V | MT • Idling after warm-up: 1.16-1.23 V • Engine speed 2,500 rpm (no load): 1.49-1.64 V AT • Idling after warm-up: 1.21-1.29 V • Engine speed 2,500 rpm (no load): 1.54-1.67 V
MIL (Malfunction indicator lamp) | On/Off | • Ignition switch ON: On • Idling: Off | • MIL | -
MIL_DIS (Travelled distance since the MIL illuminated) | Indicate the travelled distance since the MIL illuminated
MOP_POS (Metering oil pump) | - | • When the initial set function is operating: value is increased | • The following PIDs – BARO, ECT, IAT, MOP_SW, RPM • Metering oil pump | 2V, 2W, 2Y, 2AB
MOP_SW (Metering oil pump switch) | On/Off | • When the initial set function is operating: On | • Metering oil pump switch | 2N
O2S11 (Front HO2S) | mA | • Idling after warm-up: Approx. 0 mA | • Front HO2S | 2B
O2S12 (Rear HO2S) | V | • Idling after warm-up: 0.1 -0.9 V | • Rear HO2S | 2Q
PSCNTV (AIR solenoid valve control) | On/Off | • AIR pump operating: On • AIR pump not operating: Off | • The following PIDs – CATT11_DSD, ECT, IAT • AIR solenoid valve | 1O
PCM_T (PCM temperature sensor) | V | • Ignition switch at ON position: Indicate the PCM temperature sensor output voltage | • PCM | -
RO2FT1 (Rear HO2S fuel trim) | - | • Idling after warm-up: Approx.-0.03-0.03 | • The following PID – O2S12 | -
RPM (Engine speed) | RPM | • Engine runs: Indicate the engine speed | • Eccentric shaft position sensor | -
PREDELI (Pre-delivery mode) | On/Off | • This PID is for the off-line inspection.
SC_SET (Cruise set indicator light) | On/Off | • Cruise set indicator light ON: On • Cruise set indicator light OFF: Off | • Cruise indicator light | -
SCCS (Cruise control switch) | V | • Press ON/OFF: Approx. 0 V • Press CANCEL: Approx. 0.25 V • Press SET/COAST: Approx. 1.18 V • Press RES/ACCEL: Approx. 2.50 V • Others: Approx. 5.0 V | • Cruise control switch | 5V
SELTESTDTC (DTC) | Indicate the Number of the DTCs detected by the KOEO/KOER self-test function
SHRTFT1 (Short term fuel trim (front)) | % | • Idling after warm-up: -4-4% | • The following PIDs – ACSW, APP, B+, BARO, ECT, IAT, KNOCKR, LOAD, MAF, O2S11, O2S12, RPM, TP, VSS | -
SHRTFT12 (Short term fuel trim (rear)) | % | • Idling after warm-up: Approx. 99% | • The following PIDs – ACSW, APP, B+, BARO, ECT, IAT, KNOCKR, LOAD, MAF, O2S11, O2S12, RPM, TP, VSS | -
SPARK-L (Ignition timing) | °(BTDC) | • Ignition switch ON: BTDC 0° • Idling after warm-up: BTDC Approx. 5° | • The following PIDs – ACSW, APP, ECT, IAT, IVS, KNOCKR, LOAD, MAF, RPM, TP, VSS • Ignition coil (L/F) | 2AA
SPARK-T (Ignition timing) | °(BTDC) | • Ignition switch ON: BTDC 20° • Idling after warm-up: BTDC Approx. 23° | • The following PIDs – ACSW, APP, ECT, IAT, IVS, KNOCKR, LOAD, MAF, RPM, TP, VSS • Ignition coil (T/F) | 2AD
SSV (SSV solenoid valve) | On/Off | • High engine speed and high load after warm-up: On • Idling: Off | • The following PIDs – BARO, ECT, IAT, MAF, RPM, TP • SSV solenoid valve | 1L
test | On/Off | • Test mode: On • Except above: Off | - | -
TIRESIZE (Tire revolution per mile) | rev/mile | • Indicate the tire revolution per a mile
TP (TP) | V | • CTP: Approx. 0.8 V • WOT: Approx. 3.92 V | • The following PIDs – TP1, TP2 | -
TP_REL (Relative TP) | % | • CTP: Approx. 7% • WOT: Approx. 100% | • The following PIDs – TP, TP1, TP2 | -
TP1 (TP sensor 1) | % | • CTP: 8.0-16.0% • WOT: 76.5-81.9% | • TP sensor No.1 | 1J
V | • CTP: 0.40-0.80 V • WOT: 3.825-4.095 V
TP2 (TP sensor 2) | % | • CTP: 23.6-35.6% • WOT: 80.66-86.06% | • TP sensor No.2 | 1M
V | • CTP: 1.18-1.78 V • WOT: 4.033-4.303 V
TPCT (TP sensor voltage at CTP) | V | • Ignition switch ON (CTP): 0.01 V | • TP sensor | 1J, 1M
VSS (Vehicle speed) | km/h | MPH | • Vehicle running: Indicate the vehicle speed | • ABS HU/CM • DSC HU/CM | -

  *1 :
Calculated value; differs from terminal voltage
  *2 :
Refrigerant pressure switch (middle) turns off when the refrigerant pressure is 1.11 MPa {11.3 kgf/cm2, 161 psi} or less
  *3 :
Refrigerant pressure switch (middle) turns on when the refrigerant pressure is 1.60 MPa {16.3 kgf/cm2, 232 psi} or more
  *4 :
The voltage may vary excessively depending on the weather or battery conditions.
  *5 :
With Immobilizer system
  *6 :
Without Immobilizer system