PCM INSPECTION [L8, LF]

id0140i7802500

Not Using the M-MDS

  Note
  • The PCM terminal voltage can vary with the conditions when measuring and changes due to aged deterioration on the vehicle, causing false diagnosis. Therefore determine comprehensively where the malfunction occurs among the input systems, output systems, and the PCM.

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Terminal | Signal | Connected to | Test condition | Voltage (V) | Inspection item
--- | --- | --- | --- | --- | ---
1A | — | — | — | — | —
1B | Starter relay control | Starter relay | Under any condition | Below 1.0 | • Starter relay • Related wiring harness
1C | — | — | — | — | —
1D*1 | Clutch operation | CPP switch | Clutch pedal depressed | Below 1.0 | • CPP switch • Related wiring harness
Clutch pedal released | B+
1E | — | — | — | — | —
1F | — | — | — | — | —
1G | — | — | — | — | —
1H | Fuel pump control | Fuel pump relay | Ignition switch is turned to the ON position (Engine off) and a certain period has elapsed | B+ | • Fuel pump relay • Related wiring harness
Cranking | Below 1.0
Idle | Below 1.0
1I | A/C | A/C relay | Engine running | A/C operating | Below 1.0 | • A/C relay • Related wiring harness
A/C not operating | B+
1J | Refrigerant pressure switch (middle) | Refrigerant pressure switch (middle) | Refrigerant pressure is more than the specification. (Refrigerant pressure switch (middle) is on.) | Below 1.0 | • Refrigerant pressure switch (middle) • Related wiring harness
Refrigerant pressure is less than the specification. (Refrigerant pressure switch (middle) is off.) | B+
1K | — | — | — | — | —
1L | — | — | — | — | —
1M | Cooling fan control | Cooling fan relay No.1 | Cooling fan not operating | B+ | • Cooling fan relay No.1 • Related wiring harness
Cooling fan operating | Below 1.0
1N | Cooling fan control | Cooling fan relay No.2 | Cooling fan not operating | B+ | • Cooling fan relay No.2 • Related wiring harness
Cooling fan operating | Below 1.0
1O | — | — | — | — | —
1P | MAF sensor ground | MAF sensor | Under any condition | Below 1.0 | • Related wiring harness
1Q | Main relay control | Main relay | Ignition switch is turned to the ON position | Below 1.0 | • Main relay • Related wiring harness
Ignition switch off and a certain period has elapsed | B+
1R | Cooling fan control | Cooling fan relay No.3 | Cooling fan not operating | B+ | • Cooling fan relay No.3 • Related wiring harness
Cooling fan operating | Below 1.0
1S | — | — | — | — | —
1T | — | — | — | — | —
1U | — | — | — | — | —
1V | — | — | — | — | —
1W | — | — | — | — | —
1X | Neutral position*1 | Neutral switch | Shift lever is at neutral position | Below 1.0 | • Neutral switch • Related wiring harness
Shift lever is not at neutral position | B+
Selector lever position*2 | TR switch | Ignition switch is turned to the ON position | P, N position | Below 1.0 | • TR switch • Related wiring harness
Except above | B+
1Y | — | — | — | — | —
1Z | — | — | — | — | —
1AA | — | — | — | — | —
1AB | Brake switch 1 | Brake switch (No.1 signal) | Brake pedal depressed | B+ | • Brake switch (No.1 signal) • Related wiring harness
Brake pedal released | Below 1.0
1AC | — | — | — | — | —
1AD | — | — | — | — | —
1AE | — | — | — | — | —
1AF*5 | Brake switch 2 | Brake switch (No.2 signal) | Brake pedal depressed | B+ | • Brake switch (No.2 signal) • Related wiring harness
Brake pedal released | Below 1.0
1AG | — | — | — | — | —
1AH | — | — | — | — | —
1AI | CAN_L | CAN related module | Because this terminal is for CAN, no valid determination of terminal voltage is possible | • Related wiring harness
1AJ | APP sensor No.2 power supply | APP sensor | Ignition switch is turned to the ON position | Approx. 5.0 | • Related wiring harness
1AK | MAF | MAF sensor | Ignition switch is turned to the ON position | Approx. 0.7 | • MAF sensor • Related wiring harness
Idle | Approx. 1.4
1AL | APP sensor No.1 power supply | APP sensor | Ignition switch is turned to the ON position. | Approx. 5.0 | • Related wiring harness
1AM | CAN_H | CAN related module | Because this terminal is for CAN, no valid determination of terminal voltage is possible | • Related wiring harness
1AN | — | — | — | — | —
1AO | APP sensor No.1 | APP sensor | Ignition switch is turned to the ON position | Accelerator pedal depressed | Approx. 3.9 | • APP sensor • Related wiring harness
Accelerator pedal released | Approx. 1.6
1AP | APP sensor No.2 | APP sensor | Ignition switch is turned to the ON position | Accelerator pedal depressed | Approx. 3.4 | • APP sensor • Related wiring harness
Accelerator pedal released | Approx. 1.0
1AQ*3 | Cruise control switch | Cruise control switch | Ignition switch is turned to the ON position | ON OFF switch pressed in | Approx. 0 | • Cruise control switch • Related wiring harness
CANCEL switch pressed in | Approx. 1.1
SET/– switch pressed in | Approx. 3.1
RES/+ switch pressed in | Approx. 4.2
Except above | Approx. 5.0
1AR | Sensor ground | MAF/IAT sensor | Under any condition | Below 1.0 | • Related wiring harness
1AS | APP sensor No.1 ground | APP sensor | Under any condition | Below 1.0 | • Related wiring harness
1AT | IAT | MAF/IAT sensor | Ignition switch is turned to the ON position | IAT is 20 °C {68 °F} | Approx. 2.4 | • IAT sensor • Related wiring harness
IAT is 60°C {140 °F} | Approx. 0.9
1AU | Refrigerant pressure switch (high, low) | Refrigerant pressure switch (high, low) | Ignition switch is turned to the ON position | A/C operating | Below 1.0 | • Refrigerant pressure switch (high, low) • Related wiring harness
A/C not operating | B+
1AV | APP sensor No.2 ground | APP sensor | Under any condition | Below 1.0 | • Related wiring harness
1AW | B+ | Main relay | Ignition switch off | Below 1.0 | • Main relay • Related wiring harness
Ignition switch is turned to the ON position | B+
1AX | Drive-by-wire relay control | Drive-by-wire relay | Under any condition | Below 1.0 | • Drive-by-wire relay • Related wiring harness
1AY | Ignition switch | Ignition switch | Ignition switch off | Below 1.0 | • Ignition switch • Related wiring harness
Ignition switch is turned to the ON position | B+
1AZ | Ground | Ground | Under any condition | Below 1.0 | • Related wiring harness
1BA | Back-up power supply | Battery (positive terminal) | Under any condition | B+ | • Battery • Related wiring harness
1BB | Ground | Ground | Under any condition | Below 1.0 | • Related wiring harness
1BC | — | — | — | — | —
1BD | Ground | Ground | Under any condition | Below 1.0 | • Related wiring harness
1BE | B+ | Main relay | Ignition switch off | Below 1.0 | • Main relay • Related wiring harness
Ignition switch is turned to the ON position | B+
1BF | Drive-by-wire relay control | Drive-by-wire relay | Ignition switch is turned to the ON position | Drive-by-wire system is malfunction | Below 1.0 | • Drive-by-wire relay • Related wiring harness
Drive-by-wire system is normal | B+
1BG | — | — | — | — | —
1BH | Ground | Ground | Under any condition | Below 1.0 | • Related wiring harness
2A | Throttle control (+) | Throttle body (Throttle valve actuator) | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Throttle valve actuator • Related wiring harness
2B | Throttle control (–) | Throttle body (Throttle valve actuator) | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Throttle valve actuator • Related wiring harness
2C | Purge control | Purge solenoid valve | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Purge solenoid valve • Related wiring harness
2D | — | — | — | — | —
2E*4 | OCV control | OCV | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • OCV • Related wiring harness
2F | — | — | — | — | —
2G | EGR valve #2 coil control | EGR valve | Idle (EGR control not operating) | B+ | • EGR valve • Related wiring harness
2H | EGR valve #4 coil control | EGR valve | Idle (EGR control not operating) | B+ | • EGR valve • Related wiring harness
2I | Variable tumble control | Variable tumble solenoid valve | ECT 60 °C {142 °F} or more and engine speed 3,750 rpm or more | B+ | • Variable tumble solenoid valve • Related wiring harness
ECT less than 60 °C {142 °F} and engine speed less than 3,750 rpm | Below 1.0
2J | Variable intake air control | Variable intake air solenoid valve | Ignition switch is turned to the ON position | Below 1.0 | • Variable intake air solenoid valve • Related wiring harness
Engine speed: less than 4,750 rpm | Below 1.0
Engine speed: 4,750 rpm or more | B+
2K | EGR valve #1 coil control | EGR valve | Idle (EGR control not operating) | Below 1.0 | • EGR valve • Related wiring harness
2L | EGR valve #3 coil control | EGR valve | Idle (EGR control not operating) | B+ | • EGR valve • Related wiring harness
2M | — | — | — | — | —
2N | — | — | — | — | —
2O | — | — | — | — | —
2P | CMP sensor ground | CMP sensor | Under any condition | Below 1.0 | • Related wiring harness
2Q | HO2S | HO2S | Idle after warm-up | Alternates between 0 and 1.0 | • HO2S • Related wiring harness
2R | — | — | — | — | —
2S | CMP | CMP sensor | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • CMP sensor • Related wiring harness
2T | Power steering pressure | PSP switch | Idle | Steering wheel at straight ahead position | B+ | • PSP switch • Related wiring harness
While turning steering wheel | Below 1.0
2U | Knocking (+) | KS | Ignition switch ON (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter) | Approx. 4.3 | • KS • Related wiring harness
2V | Knocking (–) | KS | Ignition switch ON (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter) | Below 1.0 | • KS • Related wiring harness
2W | CKP | CKP sensor | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • CKP sensor • Related wiring harness
2X | Ground | Shield wire | Under any condition | Below 1.0 | • Related wiring harness
2Y | — | — | — | — | —
2Z | A/F sensor | A/F sensor | Idle after warm-up | Approx. 2.4 | • A/F sensor • Related wiring harness
2AA | — | — | — | — | —
2AB | CKP sensor ground | CKP sensor | Under any condition | Below 1.0 | • Related wiring harness
2AC | — | — | — | — | —
2AD | A/F sensor | A/F sensor | Idle after warm-up | Approx. 2.8 | • A/F sensor • Related wiring harness
2AE*6 | Back-up light | Back-up light switch | Ignition switch ON | Shift lever is at R position | B+ | • Back-up light switch • Related wiring harness
Shift lever is at R position | Below 1.0
2AF | — | — | — | — | —
2AG | Manifold absolute pressure | MAP sensor | Ignition switch is turned to the ON position (at sea level) | Approx. 4.1 | • MAP sensor • Related wiring harness
Idle | Approx. 1.2
2AH | ECT | ECT sensor | Ignition switch is turned to the ON position | ECT is 20 °C {68 °F} | Approx. 3.0 | • ECT sensor • Related wiring harness
ECT is 80 °C {176 °F} | Approx. 0.9
2AI | Generator field coil control | Generator (terminal D) | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Generator • Related wiring harness
2AJ | Generator output voltage | Generator (terminal P) | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Generator • Related wiring harness
2AK | Throttle valve opening angle No. 1 | Throttle body (TP sensor) | Ignition switch is turned to the ON position | Accelerator pedal depressed | Approx. 4.5 | • TP sensor • Related wiring harness
Accelerator pedal released | Approx. 0.5
2AL | Throttle valve opening angle No. 2 | Throttle body (TP sensor) | Ignition switch is turned to the ON position | Accelerator pedal depressed | Approx. 0.5 | • TP sensor • Related wiring harness
Accelerator pedal released | Approx. 4.5
2AM | Constant voltage | CMP sensor | Ignition switch is turned to the ON position | B+ | • Related wiring harness
2AN | — | — | — | — | —
2AO | Constant voltage (Vref) | Throttle body (TP sensor) | Ignition switch is turned to the ON position | Approx. 5.0 | • Related wiring harness
2AP | Sensor ground | Throttle body (TP sensor) | Under any condition | Below 1.0 | • Related wiring harness
2AQ | Constant voltage | CKP sensor | Ignition switch is turned to the ON position | B+ | • Related wiring harness
2AR | — | — | — | — | —
2AS | — | — | — | — | —
2AT | IGT4 | Ignition coil (No.4 cylinders) | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Ignition coil No.4 • Related wiring harness
2AU | Constant voltage (Vref) | MAP sensor | Ignition switch is turned to the ON position | Approx. 5.0 | • Related wiring harness
2AV | MAP sensor ground | MAP sensor | Under any condition | Below 1.0 | • Related wiring harness
2AW | IGT2 | Ignition coil (No.2 cylinders) | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Ignition coil No.2 • Related wiring harness
2AX | IGT3 | Ignition coil (No.3 cylinders) | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Ignition coil No.3 • Related wiring harness
2AY | ECT sensor ground | ECT sensor | Under any condition | Below 1.0 | • Related wiring harness
2AZ | Fuel injection (#4) | Fuel injector No.4 | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector No.4 • Related wiring harness
2BA | IGT1 | Ignition coil (No.1 cylinders) | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Ignition coil No.1 • Related wiring harness
2BB | Fuel injection (#1) | Fuel injector No.1 | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector No.1 • Related wiring harness
2BC | Fuel injection (#2) | Fuel injector No.2 | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector No.2 • Related wiring harness
2BD | Fuel injection (#3) | Fuel injector No.3 | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • Fuel injector No.3 • Related wiring harness
2BE | HO2S heater control | HO2S heater | Heavy load (Heater control not operating) | B+ | • HO2S heater • Related wiring harness
2BF | — | — | — | — | —
2BG | A/F sensor heater control | A/F sensor heater | • Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).) | • A/F sensor heater • Related wiring harness
2BH | HO2S ground | HO2S | Under any condition | Below 1.0 | • Related wiring harness

*1 :MT
*2 :AT
*3 :With cruise control system
*4 :LF
*5 :With cruise control system or from NC18**-215550,NC18**-250831,NC30**-202488,NCA8**-251024
*6 :With gear shift indicator

Inspection Using An Oscilloscope (Reference)

Throttle control (+) signal

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  PCM terminals

  • 2A (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 5 V/DIV (Y), 1 ms/DIV (X), DC range

  Vehicle condition

  • Idle (Accelerator pedal released)

Throttle control (–) signal

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  PCM terminals

  • 2B (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 5 V/DIV (Y), 1 ms/DIV (X), DC range

  Vehicle condition

  • Idle (Accelerator pedal released)

Purge control signal

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  PCM terminals

  • 2C (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 2 V/DIV (Y), 0.1 s/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up

OCV control signal

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  PCM terminals

  • 2E (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 2.5 V/DIV (Y), 1 ms/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up

CMP signal

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  PCM terminals

  • 2S (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 2 V/DIV (Y), 50 ms/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up

CKP signal

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  PCM terminals

  • 2W (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 2 V/DIV (Y), 10 ms/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up

Generator field coil control signal

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  PCM terminals

  • 2AI (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 0.5 V/DIV (Y), 1 ms/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up

Generator output voltage signal

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  PCM terminals

  • 2AJ (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 2 V/DIV (Y), 1 ms/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up

Ignition timing signals

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  PCM terminals

  • IGT1 (No.1): 2BA (+)—Negative battery terminal (–)
  • IGT2 (No.2): 2AW (+)—Negative battery terminal (–)
  • IGT3 (No.3): 2AX (+)—Negative battery terminal (–)
  • IGT4 (No.4): 2AT (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 2 V/DIV (Y), 50 ms/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up

Fuel injection signals

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  PCM terminals

  • Fuel Injection No.1: 2BB (+)—Negative battery terminal (–)
  • Fuel Injection No.2: 2BC (+)—Negative battery terminal (–)
  • Fuel Injection No.3: 2BD (+)—Negative battery terminal (–)
  • Fuel Injection No.4: 2AZ (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 10 V/DIV (Y), 10 ms/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up

A/F sensor heater control signal

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  PCM terminals

  • 2BG (+)—Negative battery terminal (–)

  Oscilloscope setting

  • 5 V/DIV (Y), 50 ms/DIV (X), DC range

  Vehicle condition

  • Idle after warm-up (no load)

Using the M-MDS

  Note
  • PIDs for the following parts are not available on this model. Go to the appropriate part inspection page.
    ― CMP sensor
    ― Main relay

1. Connect the SST (M-MDS) to the DLC-2.

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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 “Inspection item (s)” 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, ALTF, EVAPCP, FAN1, FAN2, FAN3, FP, FUELPW1, GENVDSD, HTR11, HTR12, IMRC, IMTV, INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, test, VT DUTY1 Wt

PID/DATA monitor table (reference)

Item (definition) | Unit/Condition | Condition/Specification (Reference) | Inspection item(s) | PCM terminal
--- | --- | --- | --- | ---
AC_REQ (Refrigerant pressure switch (high, low) | Off/On | • Refrigerant pressure is more than the specification or less than the specification. (Refrigerant pressure switch (high, low) is off.): Off • Except above: On | • Refrigerant pressure switch (high, low) • A/C amplifier | 1AU
ACCS (A/C relay) | Off/On | • A/C relay is ON: On • A/C relay is OFF: Off | • The following PIDs ― CPP*1, CPP/PNP*1, ECT, RPM, TP REL, AC_REQ, COLP • A/C relay | 1I
AFR (Air/fuel ratio) | - | • Idle after warm-up: Approx. 1 | • A/F sensor | 2Z, 2AD
AFR_ACT (Actual air/fuel ratio) | - | • Idle after warm-up: Approx. 1 | • A/F sensor • HO2S | —
ALTF (Generator field coil control duty value) | % | • Ignition switch is turned to the ON position: 0% • Idle, E/L is operating: Duty value increases. | • Generator | 2AI
ALTT V (Generator output voltage) | V | • Idle (no E/L): Approx. 14 V (This is an internal calculation value and differs from the terminal voltage.) | • Generator | 2AJ
APP (Accelerator pedal position) | % | • Accelerator pedal released: 0% • Accelerator pedal depressed: 100% | • The following PIDs ― APP1, APP2 | 1AO, 1AP
APP1 (APP sensor No.1) | % | • Accelerator pedal released: Approx. 32% • Accelerator pedal depressed: Approx. 78% | • APP sensor | 1AO
V | • Accelerator pedal released: Approx. 1.6 V • Accelerator pedal depressed: Approx. 3.9 V
APP2 (APP sensor No.2) | % | • Accelerator pedal released: Approx. 21% • Accelerator pedal depressed: Approx. 67% | • APP sensor | 1AP
V | • Accelerator pedal released: Approx. 1.0 V • Accelerator pedal depressed: Approx. 3.4 V
ARPMDES (Target engine speed) | RPM | • Indicate the target engine speed. | • The following PIDs ― CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP REL, MAF, MAP, VSS, AC_REQ, COLP | —
BARO (Barometric pressure) | Pa | • Indicate the barometric pressure | — | —
V | • Ignition switch is turned to the ON position (at sea level): 4.1 V
BOO (Brake switch (No.1 signal)) | On/Off | • Brake pedal depressed: ON • Brake pedal released: OFF | • Brake switch (No.1 signal) | 1AB
BPA*5 (Brake switch (No.2 signal)) | On/Off | • Brake pedal depressed: ON • Brake pedal released: OFF | • Brake switch (No.2 signal) | 1AF
CATT11_DSD (Catalyst temperature) | °C | °F | • Indicate the catalyst temperature | — | —
CHRGLP (Generator warning light) | Off/On | • Idle, Generator warning light illuminate: On • Idle, Generator warning light not illuminate: Off | • Generator warning light | —
COLP (Refrigerant pressure switch (middle)) | OFF/ON | • Refrigerant pressure is more than the specification. (Refrigerant pressure switch (middle) is on.): On • Refrigerant pressure is less than the specification. (Refrigerant pressure switch (middle) is off.): Off | • Refrigerant pressure switch (middle) | 1J
CPP*1 (Clutch pedal position) | Off/On | • Clutch pedal depressed: On • Clutch pedal released: Off | • CPP switch | 1D
CPP/PNP*1 (Shift lever position) | Drive/Neutral | • Neutral: Neutral • Other than neutral: Drive | • Neutral switch | 1X
DTCCNT (Number of DTC detected) | — | • Number of DTCs stored | — | —
ECT (Engine coolant temperature) | °C | °F | • Indicate the ECT | • ECT sensor | 2AH
V | • ECT is 20 °C {68 °F}: Approx. 3.0 V • ECT is 80 °C {176 °F}: Approx. 0.9 V
EQ_RAT11 (Actual lambda signal) | — | • Idle after warm-up: Approx. 1 | • A/F sensor | —
EQ_RAT11_DSD (Target lambda) | — | • Target lambda (Excess air factor = supplied air amount / theoretical air/fuel ratio) | • A/F sensor | —
ETC_ACT (Throttle control) | ° | • Accelerator pedal released: Approx. 0 ° • Accelerator pedal depressed: Approx. 94.5 ° | • Throttle valve actuator | 2A, 2B
ETC_DSD (Throttle control desired) | % | • Indicate the target throttle valve opening ratio | • The following PIDs ― APP, RPM | —
° | • Indicate the target throttle valve opening angle
EVAPCP (Purge solenoid valve duty value) | % | • Ignition switch is turned to the ON position: 0% • Increase the engine speed (after warm-up): Duty value rises | • The following PIDs ― ECT, IAT, RPM, TP REL, MAF, O2S11, O2S12, BOO, VPWR • Purge solenoid valve | 2C
FAN1 (Cooling fan relay No.1 control signal) | Off/On | • During test mode CTP: Off WOT: On | • The following PIDs ― ECT, test, TP REL • Cooling fan relay No.1 | 1M
FAN2 (Cooling fan relay No.2 control signal) | Off/On | • During test mode CTP: Off WOT: On | • The following PIDs ― ECT, test, TP REL • Cooling fan relay No.2 | 1N
FAN3 (Cooling fan relay No.3 control signal) | Off/On | • During test mode CTP: Off WOT: On | • The following PIDs ― ECT, test, TP REL • Cooling fan relay No.3 | 1R
FP (Fuel pump relay) | Off/On | • Ignition switch is turned to the ON position and a certain period has elapsed: Off • Cranking: On • Idle: On | • Fuel pump relay | 1H
FUELPW (Fuel injector duration) | sec | • Idle: Approx. 2.0 ms | • The following PIDs ― CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP REL, MAF, O2S11, O2S12, MAP, VSS, BOO, AC_REQ, COLP, VPWR • Fuel injector | 2BB, 2BC, 2BD, 2AZ
FUELSYS (Fuel system status) | OL/CL/ OL–Drive/ OL–Fault/ CL–Fault | • Idle after warm-up: CL | • The following PIDs ― CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP REL, MAF, O2S11, O2S12, MAP, VSS, BOO, AC_REQ, COLP, VPWR | —
GENVDSD (Target generator voltage) | V | • Indicate the target generated voltage | • The following PIDs ― ECT, IAT, RPM, VSS, ALTT V, VPWR • Generator | —
HTR11 (A/F sensor heater control) | Off/On | • Ignition switch is turned to the ON position: Off • Idle: On | • The following PIDs ― ECT, IAT, RPM, TP REL, MAF, MAP, VPWR • A/F sensor heater | 2BG
HTR12 (HO2S heater control) | Off/On | • Ignition switch is turned to the ON position: Off • Idle: On | • The following PIDs ― ECT, IAT, RPM, TP REL, MAF, MAP, VPWR • HO2S heater | 2BE
IAT (Intake air temperature) | °C | °F | • Indicate the IAT | • IAT sensor | 1AT
V | • IAT is 20 °C {68 °F}: Approx. 2.4 V • IAT is 60 °C {140 °F}: Approx. 0.9 V
IMRC*4 (Variable tumble control) | Off/On | • ECT less than 60 °C {142 °F} and engine speed less than 3,750 rpm: On • ECT 60 °C {142 °F} or more and engine speed 3,750 rpm or more: Off | • The following PIDs ― ECT, RPM, TP REL • Variable sllenoid valve | 2I
IMTV (Variable intake air control) | Off/On | • Engine speed is less than 4,750 rpm: On • Engine speed is 4,750 rpm or more: Off | • The following PIDs ― RPM • Variadle intake air solenoid valve | 2J
INGEAR (Gears are engaged) | Off/On | MT • When the following conditions are satisfied: On ― Other than neutral ― Clutch pedal released • Except above: Off | • CPP switch • Neutral switch | 1D,1X
AT • Driving range: On • Except above: Off | • TR switch | 1X
IVS (CTP condition) | Idle/Off Idle | • Idle: Idle • Other than idle: Off Idle | • The following PIDs ― TP REL | —
KNOCKR (Knocking retard) | ° | • Ignition switch is turned to the ON position: 0 ° • Idle: 0 ° | • KS | 2U, 2V
LOAD (Engine load) | % | • Idle after warm-up: Approx. 23% | • The following PIDs ― MAP, IAT, MAF, RPM | —
LONGFT1 (Long term fuel trim) | % | • Idle after warm-up: Approx. –15—+15% | • The following PIDs ― CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP REL, MAF, O2S11, O2S12, MAP, VSS, BOO, AC_REQ, COLP, VPWR | —
MAF (Mass air flow) | g/sec | • Indicate the MAF | • MAF sensor | 1AK
V | • Ignition switch is turned to the ON position: Approx. 0.7 V • Idle: Approx. 1.4 V
MAP (Manifold absolute pressure) | Pa | • Indicate the MAP | • MAP sensor | 2AG
V | • Ignition switch is turned to the ON position (at sea level): 4.1 V • Idle after warm-up: Approx. 1.2 V
MIL (Malfunction indicator lamp) | Off/On | • Idle, MIL illuminate: On • Idle, MIL not illuminate: Off | • MIL | —
MIL_DIS (Travelled distance since MIL illuminated) | km | mile | Travelled distance since MIL illuminated | —
O2S11 (A/F sensor) | A | • Idle after warm-up: Approx. 0 mA | • A/F sensor | 2AD
O2S12 (HO2S) | V | • Idle after warm-up: Alternates between 0 and 1.0 V | • HO2S | 2Q
PSP (PSP switch) | Low/High | • Steering wheel at straight ahead position: Low • While turning steering wheel: High | • PSP switch | 2T
RO2FT1 (HO2S fuel trim) | — | • Idle after warm-up: Approx. 0 | • The following PIDs ― O2S12 | —
RPM (Engine speed) | RPM | • When the engine is running: Indicate the engine speed | • CKP sensor | 2W
SCCS*2 (Cruise control switch) | V | • ON OFF switch pressed in: Approx. 0 V • CANCEL switch pressed in: Approx. 1.1 V • SET/- switch pressed in: Approx. 3.1 V • RES/+ switch pressed in: Approx. 4.2 V • Except above: Approx. 5.0 V | • Cruise control switch | 1AQ
SEGRP (EGR control) | — | • Ignition switch is turned to the ON position: 0 Step • Idle: 0 Step • Engine speed is 1,187—4,200 rpm: 0—52 Step | • EGR valve | 2K, 2G, 2L, 2H
SEGRP DSD (EGR valve position desired) | % | • Ignition switch is turned to the ON position: 0% • Idle: 0% • Engine speed is 1,187—4,200 rpm: 0—100% | • The following PIDs ― MAF, TP REL, ECT, RPM, VSS | —
SHRTFT1 (Short term fuel trim (front)) | % | • Idle after warm-up: –25— 25% | • The following PIDs ― CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP REL, MAF, O2S11, O2S12, MAP, VSS, BOO, AC_REQ, COLP, VPWR | —
SPARKADV (Ignition timing) | ° | • Indicate the ignition timing | • The following PIDs ― CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP REL, MAF, KNOCKR, BOO, AC_REQ, COLP • Ignition coil | 2S
test (Test mode) | Off/On | • Test mode On: On • Test mode Off: Off | — | —
TIRESIZE (Tire revolution per mile) | rev/mile | • Indicate the tire revolution per a mile | —
TP REL (Throttle position signal (relative value)) | % | • Accelerator pedal released: Approx. 10% • Accelerator pedal depressed: Approx. 81% | • The following PIDs ― TP1, TP2 | 2AK, 2AL
TP1 (TP sensor No.1) | % | • Accelerator pedal released: Approx. 10% • Accelerator pedal depressed: Approx. 90% | • TP sensor | 2AK
V | • Accelerator pedal released: Approx. 0.5 V • Accelerator pedal depressed: Approx. 4.5 V
TP2 (TP sensor No.2) | % | • Accelerator pedal released: Approx. 10% • Accelerator pedal depressed: Approx. 90% | • TP sensor | 2AL
V | • Accelerator pedal released: Approx. 4.5 V • Accelerator pedal depressed: 0.5 V
TPCT (TP sensor voltage at CTP) | V | • Ignition switch is turned to the ON position: Approx. 0.5 V | • The following PIDs ― TP1, TP2 | —
VPWR (Battery positive voltage) | V | • Indicate the battery voltage | • Battery | 1BA
VSS (Vehicle speed) | KPH | • Vehicle running: Indicate the vehicle speed | • ABS, DSC HU/CM | —
VT ACT1*3 (Actual valve timing) | ° | • Idle: Approx. 0 ° • Racing: 0—25 ° | • The following PIDs ― ECT, RPM, TP REL, MAF • CMP sensor | 2S
VT DIFF1*3 (Difference between target valve timing and actual valve timing) | ° | • Idle: 0 ° | • The following PIDs ― ECT, RPM, TP REL, MAF • OCV | —
VT DUTY1*3 (OCV control) | % | • Idle: Approx. 10% | • The following PIDs ― ECT, RPM, TP REL, MAF | 2E

*1 :MT
*2 :With cruise control system
*3 :LF
*4 :With variable tumble system
*5 :With cruise control system or from NC18**-215550,NC18**-250831,NC30**-202488,NCA8**-251024