PCM INSPECTION [WITH WU-TWC]

id0140008025d2

Note

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

― CMP sensor

― Main relay

1. Connect the WDS or equivalent to the DLC-2.

am2zzw00004548

2. Turn the ignition switch to the ON position.

3. Inspect the monitor items.

• If the monitor item condition/specification (reference) is not within the specification, inspect “Inspection item (s)”.

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 not within specification, inspect the monitored value of the input device related to the output control.

• The simulation items are as follows.

― ACCS

― ALTF

― ARPMDES

― EVAPCP

― FAN1

― FAN2

― FP

― FUELPW1

― GENVDSD

― HTR11

― IAC

― IMRC

― IMTV

― INJ_1, INJ_2, INJ_3, INJ_4

― test

― VT DUTY1

― SEGRP

PID/DATA monitor table (reference)

Monitor item (definition)

Unit/Condition

Condition/Specification (Reference)

Inspection item (s)

PCM terminal

A/CL V

(Refrigerant pressure switch (Low, high))

V

•  A/C is not operating: Approx. 5 V

•  A/C is operating: 1.0 V or less

•  Refrigerant pressure switch (Low, high)

1U

A/CT

(Evaporator temperature)

°C, °F

•  Evaporator temperature is 20 °C {68 °F}: 20 °C {68 °F}

•  Evaporator temperature sensor

1AD

A/CT V

(Evaporator temperature (Voltage))

V

•  Evaporator temperature is 20 °C {68 °F}: 2.5 V

•  Evaporator temperature sensor

1AD

ACCS

(A/C relay)

On/Off

•  A/C is operating: On

•  A/C is not operating: Off

•  Inspect the following monitor items:

―  ACSW, ALTT V, ECT, PSP, RPM, TP

1AL

ACSW

(A/C switch)

On/Off

•  A/C switch is on: On

•  A/C switch is off: Off

•  A/C switch

1Q

ALTF

(Generator field coil control duty value)

%

•  Ignition switch is ON: 0%

•  Idling, E/L is operating: Duty value increases.

•  Inspect the following monitor items:

―  ALTT V, VPWR, IAT, RPM

•  Generator

2AN

ALTT V

(Generator output voltage)

V

•  Ignition switch is ON: Approx. 1.0 V or less

•  Idling (No electrical load): Approx. 14.9 V (This is an internal calculation value and differs from the terminal voltage.)

•  Inspect the following monitor items:

―  ALTF, VPWR, IAT, RPM

•  Generator

2AR

ARPMDES

(Target engine speed)

RPM

•  Indicates the target engine speed

•  Inspect the following monitor items:

―  A/CL V, ACCS, ACSW, ALTT V, ECT, IAT, MAF, PSP, test, TP, CPP/PNP, RPM

•   IAC valve

—

BOO

(Brake switch)

On/Off

•  Brake pedal is depressed: On

•  Brake pedal is released: Off

•  Brake switch

1V

CPP^*1

(Clutch pedal position)

On/Off

•  Clutch pedal is depressed: On

•  Clutch pedal is released: Off

•  Clutch switch

1P

CPP/PNP^*1

(Shift lever position)

Drive/Neutral

•  Neutral: Neutral

•  Other than neutral: Drive

•  Neutral switch

1AB

DTCCNT

(Number of DTC detected)

—

•  Number of DTCs output

—

—

ECT

(Engine coolant temperature)

°C, °F

•  ECT is 20 °C {68 °F}: 20 °C {68 °F}

•  ECT is 60 °C {140 °F}: 60 °C {140 °F}

•  ECT is 80 °C {176 °F}: 80 °C {176 °F}

•  ECT sensor

2J

V

•  ECT is 20 °C {68 °F}: Approx. 3.0 V

•  ECT is 60 °C {140 °F}: Approx. 1.4 V

•  ECT is 80 °C {176 °F}: Approx. 0.9 V

EVAPCP

(Purge solenoid valve duty value)

%

•  Ignition switch is ON: 0 %

•  Idling: 10 %

•  Inspect the following monitor items:

―  VPWR, ECT, O2S11, MAF, RPM, test, TP

2AV

FAN1

(Fan relay No.1 control)

On/Off

•  During test mode
CTP: Off

WOT: On

•  Inspect the following monitor items:

―  ECT, test, TP

1AT

FAN2

(Fan relay No.2 control)

On/Off

•  During test mode
CTP: Off

WOT: On

•  Inspect the following monitor items:

―  ECT, test, TP

1I

FP

(Fuel pump relay)

On/Off

•  Ignition switch is ON: Off

•  Idling or cranking: On

•  Fuel pump relay

1AH

FUELPW

(Fuel injector duration)

ms

•  Idling: Approx. 3.0 ms

•  Inspect the following monitor items:

―  MAF, IAT, RPM, ECT, O2S11, TP, TR, PSP, VSS, ACSW, BOO, VPWR

2B, 2C, 2D, 2H

FUELSYS

(Fuel system status)

OL_Drive/

OL/

CL_Fault/

OL_Fault/

CL

•  Idling after completely warmed up: CL

•  Deceleration with CTP: OL

•  Inspect the following monitor items:

―  MAF, IAT, RPM, ECT, O2S11,TP, TR, PSP, VSS, ACSW, BOO, VPWR

—

GEAR^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

GENVDSD

(Generator voltage desired)

V

•  Idling (No electrical load): Approx. 14.9 V (This is an internal calculation value and differs from the terminal voltage.)

•  Inspect the following monitor items:

―  ALTF, VPWR, IAT, RPM

•  Generator

—

HTR11

(HO2S heater control)

On/Off

•  Ignition switch is ON: Off

•  Engine speed is 4,300 rpm or less: On

•  Inspect the following monitor items:

―  ECT, MAF, RPM, TP, VPWR

2AM

IAC

(IAC valve control)

%

•  Ignition switch is ON: 0 %

•  Idling (ECT is 90 °C {194 °F}, no load condition): Approx. 23 %

•  Inspect the following monitor items:

―  A/CL V, ACSW, ALTT V, ECT, PSP, test, TP, RPM

2X, 2AB

IAT

(Intake air temperature)

V

•  IAT is 20°C {68°F}: Approx. 2.5 V

•  IAT is 30°C {86°F}: Approx. 1.8 V

•  IAT sensor

2AQ

°C, °F

•  IAT is 20 °C {68 °F}: 20 °C {68 °F}

•  IAT is 30 °C {86 °F}: 30 °C {86 °F}

IMRC

(VTCS)

On/Off

•  Cold start and 3,250 rpm or less: On

•  Hot start or 3,250 rpm or more: Off

•  Inspect the following monitor items:

―  TP, RPM, ECT

2AF, 2AJ

IMTV^*4

(VIS)

On/Off

•  Engine speed is less than 4,100 rpm: On

•  Engine speed is 4,100 rpm or more: Off

•  Inspect the following monitor items:

―  TP, RPM, ECT

2AO, 2AS

INGEAR

(Gears are engaged.)

On/Off

•  Clutch pedal is released: On

•  Clutch pedal is depressed: Off

•  Other than neutral: On

•  Neutral: Off

•  Clutch switch

•  Neutral switch

^*11P, 1AB

•  Other than P and N positions: On

•  P or N position: Off

•  TR switch

^*2—

IVS

(CTP condition)

Idle/Off Idle

•  Idling: Idle

•  Other than idling: Off Idle

•  Inspect the following monitor item:

―  TP

2AA

KNOCKR

(Knocking retard)

°

•  Ignition switch is at the ON position: 0°

•  Idling: 0°

•  Knock sensor

2BA

LINEDES^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

LOAD

(Engine load (charging efficiency))

%

•  Idling (After warm-up): Approx. 19%

•  DTC inspection

—

LONGFT1

(Long term fuel trim)

%

•  Idling (After warm-up): Approx. –14—+14 %

•  DTC inspection

—

LPS^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

MAF

(Mass air flow)

g/s

•  Ignition switch is ON: Approx. 0 g/s

•  Idling: Approx. 2.7 g/s

•  MAF sensor

2AU

V

•  Ignition switch is ON: Approx. 0.7 V

•  Idling: Approx. 1.3 V

MAP^*3

(Manifold absolute pressure)

kPa, Bar, psi

•  Ignition switch is turned to the ON position: Indicate the atmospheric pressure

•  MAP sensor

2S

V

•  Ignition switch is ON

―  Altitude 2,500 m: 1.8—2.8 V

MIL

(Malfunction indicator lamp)

On/Off

•  Ignition switch is ON: On

•  Idling: Off

•  DTC inspection

—

MIL_DIS

(Distance travelled since MIL illuminated)

km, mile

•  Distance travelled since MIL illuminated

—

—

O2S11

(HO2S voltage)

V

•  Ignition switch is ON: 1.0 V or less

•  Idling (After warm-up): Alternates between 0 and 1.0 V

•  Acceleration (After warm-up):
Alternates between 0.5 and 1.0 V

•  Deceleration (After warm-up):
Alternates between 0 and 0.5 V

•  HO2S

2AI

Rich/Lean

•  Acceleration (After warm-up):
Rich

•  Deceleration (After warm-up):
Lean

PSP

(PSP switch)

High/Low

•  Steering wheel is in straight ahead position: Low

•  Steering wheel is fully turned: High

•  PSP switch

2AC

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 “AFTER REPAIR PROCEDURE”.

—

RPM

(Engine speed)

RPM

•  Indicates the engine speed

•  CKP sensor

2P

SEGRP^*3

(EGR control)

Step

•  Ignition switch is turned to the ON position: 0 Step

•  Idling: 0 Step

•  Vehicle driving when engine speed is 1,000—4,700 rpm: 0—52 Step

•  EGR valve

2N, 2R, 2V, 2Z

SEGRP DSD^*3

(EGR valve position desired)

%

•  Ignition switch is turned to the ON position: 0 %

•  Idling: 0 %

•  Vehicle driving when engine speed is 1,000—4,700 rpm: 0—100 %

•  Inspect the following monitor items:

―  MAF, TP, ECT, RPM, VSS

—

SHRTFT1

(Short term fuel trim)

%

•  Idling (After warm-up): –3—+25%

•  DTC inspection

—

SPARKADV

(Ignition timing)

° (BTDC)

•  During test mode: BTDC 9—11 ° (BTDC)

•  Idling: BTDC 6—18 ° (BTDC)

•  Inspect the following monitor items:

―  ACSW, ALTT V, VPWR, ECT, KNOCKR, test, TP, RPM, VSS

2BB

SSA/SS1^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

SSB/SS2^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

SSC/SS3^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

SWA^*5

(Steering angle sensor)

°

•  Steering wheel in neutral position (Not turned): 0 °

•  Steering wheel turned to left: Changes 0 °—negative

•  Steering wheel turned to right: Changes 0 °—positive

•  Steering angle sensor

1R, 1M

TCS^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

test

(Test mode)

On/Off

•  During test mode: On

•  Other than test mode: Off

—

—

TFT^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

TFTV^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

THOP^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

TP

(TP)

%

•  CTP: 0 %

•  WOT: 100 %

•  TP sensor

2AA

V

•  CTP: 0.3—1.0 V

•  WOT: 3.1—4.5 V

TP REL

(Throttle position signal (relative value))

%

•  CTP: 0 %

•  WOT: 100 %

•  TP sensor

2AA

TPCT

(TP sensor voltage at CTP)

V

•  0.3—1.0 V

•  TP sensor

2AA

TR^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

TR_SENS^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

TSS^*2

(See PID/DATA MONITOR INSPECTION [FN4A-EL].)

VPWR

(Battery positive voltage)

V

•  Ignition switch is ON: B+

•  Idling: B+

•  Battery

•  Main relay

1AX, 1BF, 1BG

VSS

(Vehicle speed)

KPH, MPH

•  Vehicle is stopped: 0 KPH {0 MPH}

•  Vehicle speed is 25 km/h: 25 KPH {16 MPH}

•  VSS

^*11AA, 1AE

^*21AY, 1BC

VT ACT1

(OCV control)

° (BTDC)

•  Idling: 0 °

•  Racing: 0—25 °

•  Inspect the following monitor items:

―  ECT, MAF, TP, RPM

•  OCV

2AK, 2AG

VT DIFF1

(OCV control)

° (BTDC)

•  Idling: 0 °

•  Inspect the following monitor items:

―  ECT, MAF, TP, RPM

•  OCV

—

VT DUTY1

(OCV control)

%

•  Idling: Approx. 10 %

•  Inspect the following monitor items:

―  ECT, MAF, TP, RPM

2AK, 2AG

Monitor item (definition)	Unit/Condition	Condition/Specification (Reference)	Inspection item (s)	PCM terminal
A/CL V (Refrigerant pressure switch (Low, high))	V	• A/C is not operating: Approx. 5 V • A/C is operating: 1.0 V or less	• Refrigerant pressure switch (Low, high)	1U
A/CT (Evaporator temperature)	°C, °F	• Evaporator temperature is 20 °C {68 °F}: 20 °C {68 °F}	• Evaporator temperature sensor	1AD
A/CT V (Evaporator temperature (Voltage))	V	• Evaporator temperature is 20 °C {68 °F}: 2.5 V	• Evaporator temperature sensor	1AD
ACCS (A/C relay)	On/Off	• A/C is operating: On • A/C is not operating: Off	• Inspect the following monitor items: ― ACSW, ALTT V, ECT, PSP, RPM, TP	1AL
ACSW (A/C switch)	On/Off	• A/C switch is on: On • A/C switch is off: Off	• A/C switch	1Q
ALTF (Generator field coil control duty value)	%	• Ignition switch is ON: 0% • Idling, E/L is operating: Duty value increases.	• Inspect the following monitor items: ― ALTT V, VPWR, IAT, RPM • Generator	2AN
ALTT V (Generator output voltage)	V	• Ignition switch is ON: Approx. 1.0 V or less • Idling (No electrical load): Approx. 14.9 V (This is an internal calculation value and differs from the terminal voltage.)	• Inspect the following monitor items: ― ALTF, VPWR, IAT, RPM • Generator	2AR
ARPMDES (Target engine speed)	RPM	• Indicates the target engine speed	• Inspect the following monitor items: ― A/CL V, ACCS, ACSW, ALTT V, ECT, IAT, MAF, PSP, test, TP, CPP/PNP, RPM • IAC valve	—
BOO (Brake switch)	On/Off	• Brake pedal is depressed: On • Brake pedal is released: Off	• Brake switch	1V
CPP^*1 (Clutch pedal position)	On/Off	• Clutch pedal is depressed: On • Clutch pedal is released: Off	• Clutch switch	1P
CPP/PNP^*1 (Shift lever position)	Drive/Neutral	• Neutral: Neutral • Other than neutral: Drive	• Neutral switch	1AB
DTCCNT (Number of DTC detected)	—	• Number of DTCs output	—	—
ECT (Engine coolant temperature)	°C, °F	• ECT is 20 °C {68 °F}: 20 °C {68 °F} • ECT is 60 °C {140 °F}: 60 °C {140 °F} • ECT is 80 °C {176 °F}: 80 °C {176 °F}	• ECT sensor	2J
V	• ECT is 20 °C {68 °F}: Approx. 3.0 V • ECT is 60 °C {140 °F}: Approx. 1.4 V • ECT is 80 °C {176 °F}: Approx. 0.9 V
EVAPCP (Purge solenoid valve duty value)	%	• Ignition switch is ON: 0 % • Idling: 10 %	• Inspect the following monitor items: ― VPWR, ECT, O2S11, MAF, RPM, test, TP	2AV
FAN1 (Fan relay No.1 control)	On/Off	• During test mode CTP: Off WOT: On	• Inspect the following monitor items: ― ECT, test, TP	1AT
FAN2 (Fan relay No.2 control)	On/Off	• During test mode CTP: Off WOT: On	• Inspect the following monitor items: ― ECT, test, TP	1I
FP (Fuel pump relay)	On/Off	• Ignition switch is ON: Off • Idling or cranking: On	• Fuel pump relay	1AH
FUELPW (Fuel injector duration)	ms	• Idling: Approx. 3.0 ms	• Inspect the following monitor items: ― MAF, IAT, RPM, ECT, O2S11, TP, TR, PSP, VSS, ACSW, BOO, VPWR	2B, 2C, 2D, 2H
FUELSYS (Fuel system status)	OL_Drive/ OL/ CL_Fault/ OL_Fault/ CL	• Idling after completely warmed up: CL • Deceleration with CTP: OL	• Inspect the following monitor items: ― MAF, IAT, RPM, ECT, O2S11,TP, TR, PSP, VSS, ACSW, BOO, VPWR	—
GEAR^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
GENVDSD (Generator voltage desired)	V	• Idling (No electrical load): Approx. 14.9 V (This is an internal calculation value and differs from the terminal voltage.)	• Inspect the following monitor items: ― ALTF, VPWR, IAT, RPM • Generator	—
HTR11 (HO2S heater control)	On/Off	• Ignition switch is ON: Off • Engine speed is 4,300 rpm or less: On	• Inspect the following monitor items: ― ECT, MAF, RPM, TP, VPWR	2AM
IAC (IAC valve control)	%	• Ignition switch is ON: 0 % • Idling (ECT is 90 °C {194 °F}, no load condition): Approx. 23 %	• Inspect the following monitor items: ― A/CL V, ACSW, ALTT V, ECT, PSP, test, TP, RPM	2X, 2AB
IAT (Intake air temperature)	V	• IAT is 20°C {68°F}: Approx. 2.5 V • IAT is 30°C {86°F}: Approx. 1.8 V	• IAT sensor	2AQ
°C, °F	• IAT is 20 °C {68 °F}: 20 °C {68 °F} • IAT is 30 °C {86 °F}: 30 °C {86 °F}
IMRC (VTCS)	On/Off	• Cold start and 3,250 rpm or less: On • Hot start or 3,250 rpm or more: Off	• Inspect the following monitor items: ― TP, RPM, ECT	2AF, 2AJ
IMTV^*4 (VIS)	On/Off	• Engine speed is less than 4,100 rpm: On • Engine speed is 4,100 rpm or more: Off	• Inspect the following monitor items: ― TP, RPM, ECT	2AO, 2AS
INGEAR (Gears are engaged.)	On/Off	• Clutch pedal is released: On • Clutch pedal is depressed: Off • Other than neutral: On • Neutral: Off	• Clutch switch • Neutral switch	^*11P, 1AB
• Other than P and N positions: On • P or N position: Off	• TR switch	^*2—
IVS (CTP condition)	Idle/Off Idle	• Idling: Idle • Other than idling: Off Idle	• Inspect the following monitor item: ― TP	2AA
KNOCKR (Knocking retard)	°	• Ignition switch is at the ON position: 0° • Idling: 0°	• Knock sensor	2BA
LINEDES^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
LOAD (Engine load (charging efficiency))	%	• Idling (After warm-up): Approx. 19%	• DTC inspection	—
LONGFT1 (Long term fuel trim)	%	• Idling (After warm-up): Approx. –14—+14 %	• DTC inspection	—
LPS^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
MAF (Mass air flow)	g/s	• Ignition switch is ON: Approx. 0 g/s • Idling: Approx. 2.7 g/s	• MAF sensor	2AU
V	• Ignition switch is ON: Approx. 0.7 V • Idling: Approx. 1.3 V
MAP^*3 (Manifold absolute pressure)	kPa, Bar, psi	• Ignition switch is turned to the ON position: Indicate the atmospheric pressure	• MAP sensor	2S
V	• Ignition switch is ON ― Altitude 2,500 m: 1.8—2.8 V
MIL (Malfunction indicator lamp)	On/Off	• Ignition switch is ON: On • Idling: Off	• DTC inspection	—
MIL_DIS (Distance travelled since MIL illuminated)	km, mile	• Distance travelled since MIL illuminated	—	—
O2S11 (HO2S voltage)	V	• Ignition switch is ON: 1.0 V or less • Idling (After warm-up): Alternates between 0 and 1.0 V • Acceleration (After warm-up): Alternates between 0.5 and 1.0 V • Deceleration (After warm-up): Alternates between 0 and 0.5 V	• HO2S	2AI
Rich/Lean	• Acceleration (After warm-up): Rich • Deceleration (After warm-up): Lean
PSP (PSP switch)	High/Low	• Steering wheel is in straight ahead position: Low • Steering wheel is fully turned: High	• PSP switch	2AC
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 “AFTER REPAIR PROCEDURE”.	—
RPM (Engine speed)	RPM	• Indicates the engine speed	• CKP sensor	2P
SEGRP^*3 (EGR control)	Step	• Ignition switch is turned to the ON position: 0 Step • Idling: 0 Step • Vehicle driving when engine speed is 1,000—4,700 rpm: 0—52 Step	• EGR valve	2N, 2R, 2V, 2Z
SEGRP DSD^*3 (EGR valve position desired)	%	• Ignition switch is turned to the ON position: 0 % • Idling: 0 % • Vehicle driving when engine speed is 1,000—4,700 rpm: 0—100 %	• Inspect the following monitor items: ― MAF, TP, ECT, RPM, VSS	—
SHRTFT1 (Short term fuel trim)	%	• Idling (After warm-up): –3—+25%	• DTC inspection	—
SPARKADV (Ignition timing)	° (BTDC)	• During test mode: BTDC 9—11 ° (BTDC) • Idling: BTDC 6—18 ° (BTDC)	• Inspect the following monitor items: ― ACSW, ALTT V, VPWR, ECT, KNOCKR, test, TP, RPM, VSS	2BB
SSA/SS1^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
SSB/SS2^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
SSC/SS3^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
SWA^*5 (Steering angle sensor)	°	• Steering wheel in neutral position (Not turned): 0 ° • Steering wheel turned to left: Changes 0 °—negative • Steering wheel turned to right: Changes 0 °—positive	• Steering angle sensor	1R, 1M
TCS^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
test (Test mode)	On/Off	• During test mode: On • Other than test mode: Off	—	—
TFT^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
TFTV^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
THOP^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
TP (TP)	%	• CTP: 0 % • WOT: 100 %	• TP sensor	2AA
V	• CTP: 0.3—1.0 V • WOT: 3.1—4.5 V
TP REL (Throttle position signal (relative value))	%	• CTP: 0 % • WOT: 100 %	• TP sensor	2AA
TPCT (TP sensor voltage at CTP)	V	• 0.3—1.0 V	• TP sensor	2AA
TR^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
TR_SENS^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
TSS^*2	(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
VPWR (Battery positive voltage)	V	• Ignition switch is ON: B+ • Idling: B+	• Battery • Main relay	1AX, 1BF, 1BG
VSS (Vehicle speed)	KPH, MPH	• Vehicle is stopped: 0 KPH {0 MPH} • Vehicle speed is 25 km/h: 25 KPH {16 MPH}	• VSS	^*11AA, 1AE
^*21AY, 1BC
VT ACT1 (OCV control)	° (BTDC)	• Idling: 0 ° • Racing: 0—25 °	• Inspect the following monitor items: ― ECT, MAF, TP, RPM • OCV	2AK, 2AG
VT DIFF1 (OCV control)	° (BTDC)	• Idling: 0 °	• Inspect the following monitor items: ― ECT, MAF, TP, RPM • OCV	—
VT DUTY1 (OCV control)	%	• Idling: Approx. 10 %	• Inspect the following monitor items: ― ECT, MAF, TP, RPM	2AK, 2AG

*1 :MTX

*2 :ATX

*3 :ZJ

*4 :ZY

*5 :The steering angle will be cleared if the ignition switch is turned off. The sensor detects the steering angle after the ignition switch is turned to the ON position and the vehicle is driven straight at a vehicle speed of 20 km/h {12 mph} or more. The SWA value will be cleared every time the ignition switch is turned off, so the initial value (300 °) is displayed until the steering angle is detected. If the SWA value does not change from 300 °, drive the vehicle under 20 km/h {12 mph} or less until the steering angle is detected, and then monitor the item again.

Without Using WDS or Equivalent

Caution

• The PCM terminal voltages vary with change in 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, a wrong diagnosis will be made.

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Terminal voltage table (Reference)

Terminal	Signal	Connected to	Test condition		Voltage (V)	Inspection item (s)
1A	—	—	—		—	—
1B	—	—	—		—	—
1C	—	—	—		—	—
1D	—	—	—		—	—
1E	—	—	—		—	—
1F	—	—	—		—	—
1G^*1	GND	Input/turbine speed sensor shield wire	Under any condition		1.0 or less	• Related harness
1H	—	—	—		—	—
1I	Electric fan control	Cooling fan relay No. 2	Test mode is on^*2	CTP	B+	• Cooling fan relay No.2 • Related harness
1I	Electric fan control	Cooling fan relay No. 2	Test mode is on^*2	WOT	1.0 or less	• Cooling fan relay No.2 • Related harness
1J	—	—	—		—	—
1K^*1	Input/turbine speed sensor (–)	Input/turbine speed sensor	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Input/turbine speed sensor • Related harness
1L	—	—	—		—	—
1M	Steering angle sensor (signal B)	Steering angle sensor	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Steering angle sensor • Related harness
1N	GND	Evaporator temperature sensor	Under any condition		1.0 or less	• Related harness
1O^*1	Input/turbine speed sensor (+)	Input/turbine speed sensor	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Input/turbine speed sensor • Related harness
1P^*3	Clutch switch	Clutch switch	Ignition switch is ON	Clutch pedal depressed	1.0 or less	• Clutch switch • Related harness
1P^*3	Clutch switch	Clutch switch	Ignition switch is ON	Clutch pedal released	Approx. 6.3	• Clutch switch • Related harness
1Q	A/C operation	A/C switch, refrigerant pressure switch (low, high)	Ignition switch is ON	A/C switch is off	Approx. 5.0	• A/C switch • Refrigerant pressure switch (low, high) • Related harness
1Q	A/C operation	A/C switch, refrigerant pressure switch (low, high)	Ignition switch is ON	A/C switch and fan switch are on	1.0 or less
1R	Steering angle sensor (signal A)	Steering angle sensor	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Steering angle sensor • Related harness
1S	CAN_L	Instrument cluster, ABS HU/CM, DLC-2	Because this terminal is for CAN, good/no good determination of terminal voltage is not possible.			—
1T	—	—	—		—	—
1U	Refrigerant pressure (middle)	Refrigerant pressure switch (middle)	Idle	Refrigerant pressure is specified value or more	1.0 or less	• Refrigerant pressure switch (middle) • Related harness
1U	Refrigerant pressure (middle)	Refrigerant pressure switch (middle)	Idle	Refrigerant pressure is specified value or less	Approx. 5.0	• Refrigerant pressure switch (middle) • Related harness
1V	Brake switch	Brake switch	Brake pedal depressed		B+	• Brake switch • Related harness
1V	Brake switch	Brake switch	Brake pedal released		1.0 or less	• Brake switch • Related harness
1W	CAN_H	Instrument cluster, ABS HU/CM, DLC-2	Because this terminal is for CAN, good/no good determination of terminal voltage is not possible.			—
1X^*1	Selector lever position	TR switch	Ignition switch is ON	P position	Approx. 4.6	• TR switch • Related harness
				R position	Approx. 3.9
				N position	Approx. 3.2
				D range	Approx. 2.5
				S range	Approx. 1.7
				L range	Approx. 0.94
1Y	—	—	—		—	—
1Z	Vehicle speed output	Car-navigation unit	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Car-navigation unit • Related harness
1AA^*3	Vehicle speed (–)	VSS	Under any condition		1.0 or less	• VSS • Related harness
1AB^*3	Neutral switch	Neutral switch	Ignition switch is ON	Neutral	1.0 or less	• Neutral switch • Related harness
1AB^*3	Neutral switch	Neutral switch	Ignition switch is ON	Except above	Approx. 6.3	• Neutral switch • Related harness
1AC	—	—	—		—	—
1AD	Evaporator temperature	Evaporator temperature sensor	Ignition switch is ON	Evaporator temperature is 20 °C {68 °F}	Approx. 2.5	• Evaporator temperature sensor • Related harness
1AE^*3	Vehicle speed (+)	VSS	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• VSS • Related harness
1AF^*1	Pressure control solenoid (+)	Pressure control solenoid	Idle		B+	• Pressure control solenoid • Related harness
1AG	—	—	—		—	—
1AH	Fuel pump control	Fuel pump relay	Ignition switch is ON		B+	• Fuel pump relay • Related harness
			Cranking		1.0 or less
			Idle		1.0 or less
1AI	—	—	—		—	—
1AJ^*1	Shift solenoid D	Shift solenoid D	P or N position		B+	• Shift solenoid D • Related harness
1AJ^*1	Shift solenoid D	Shift solenoid D	Except above		1.0 or less	• Shift solenoid D • Related harness
1AK	—	—	—		—	—
1AL	A/C cut-off control	A/C relay	A/C is operating		1.0 or less	• A/C relay • Related harness
1AL	A/C cut-off control	A/C relay	A/C is not operating		B+	• A/C relay • Related harness
1AM	—	—	—		—	—
1AN^*1	GND	TFT sensor, TR switch	Under any condition		1.0 or less	• Related harness
1AO	—	—	—		—	—
1AP	—	—	—		—	—
1AQ^*1	HOLD switch	HOLD switch	Ignition switch is ON	HOLD switch pushed	1.0 or less	• HOLD switch • Related harness
1AQ^*1	HOLD switch	HOLD switch	Ignition switch is ON	HOLD switch released	B+	• HOLD switch • Related harness
1AR^*1	Shift solenoid E	Shift solenoid E	During TCC operation		B+	• Shift solenoid E • Related harness
1AR^*1	Shift solenoid E	Shift solenoid E	Except above		1.0 or less	• Shift solenoid E • Related harness
1AS	—	—	—		—	—
1AT	Electric fan control	Cooling fan relay No. 1	Test mode is on^*2	CTP	B+	• Cooling fan relay No.1 • Related harness
1AT	Electric fan control	Cooling fan relay No. 1	Test mode is on^*2	WOT	1.0 or less	• Cooling fan relay No.1 • Related harness
1AU^*1	ATF temperature	TFT sensor	Ignition switch is ON	TFT is 20 °C {68 °F}	Approx. 3.3	• TFT sensor • Related harness
				TFT is 40 °C {104 °F}	Approx. 2.4
				TFT is 60 °C {140 °F}	Approx. 1.5
1AV^*1	Pressure control solenoid (–)	Pressure control solenoid	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Pressure control solenoid • Related harness
1AW	Main relay	Main relay	Ignition switch is off		1.0 or less	• Main relay • Related harness
1AW	Main relay	Main relay	Ignition switch is ON		1.0 or less	• Main relay • Related harness
1AX	Back-up power supply	Battery	Under any condition		B+	• Battery • Related harness
1AY^*1	Vehicle speed	VSS	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• VSS • Related harness
1AZ^*1	Shift solenoid A	Shift solenoid A	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Shift solenoid A • Related harness
1BA	ECT output	Climate control unit	Ignition switch is ON	ECT is 20 °C {68 °F}	Approx. 3.0	• Climate control unit • Related harness
				ECT is 60 °C {140 °F}	Approx. 1.4
				ECT is 80 °C {176 °F}	Approx. 0.9
1BB	Battery voltage	Main relay	Ignition switch is off		1.0 or less	• Main relay • Battery • Related harness
1BB	Battery voltage	Main relay	Ignition switch is ON		B+	• Main relay • Battery • Related harness
1BC^*1	VSS power supply	VSS	Ignition switch is ON		B+	• Related harness
1BD^*1	Shift solenoid C	Shift solenoid C	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Shift solenoid C • Related harness
1BE	Ignition switch	Ignition switch	Ignition switch is off		1.0 or less	• Ignition switch • Related harness
1BE	Ignition switch	Ignition switch	Ignition switch is ON		B+	• Ignition switch • Related harness
1BF	Battery voltage	Main relay	Ignition switch is off		1.0 or less	• Main relay • Battery • Related harness
1BF	Battery voltage	Main relay	Ignition switch is ON		B+	• Main relay • Battery • Related harness
1BG^*1	Battery voltage	Main relay	Ignition switch is off		1.0 or less	• Main relay • Battery • Related harness
1BG^*1	Battery voltage	Main relay	Ignition switch is ON		B+	• Main relay • Battery • Related harness
1BH^*1	Shift solenoid B	Shift solenoid B	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Shift solenoid B • Related harness
2A	Ignition coil power supply	Ignition coil	Ignition switch is ON		B+	• Related harness
2B	Fuel injection control	Fuel injector No.1	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Fuel injector No.1 • Related harness
2C	Fuel injection control	Fuel injector No.2	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Fuel injector No.2 • Related harness
2D	Fuel injection control	Fuel injector No.3	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Fuel injector No.3 • Related harness
2E	Fuel injector No.1 power supply	Fuel injector No.1	Ignition switch is ON		B+	• Related harness
2F	Fuel injector No.2 power supply	Fuel injector No.2	Ignition switch is ON		B+	• Related harness
2G	Fuel injector No.3 power supply	Fuel injector No.3	Ignition switch is ON		B+	• Related harness
2H	Fuel injection control	Fuel injector No.4	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Fuel injector No.4 • Related harness
2I	—	—	—		—	—
2J	ECT	ECT sensor	Ignition switch is ON	ECT is 20 °C {68 °F}	Approx. 3.0	• ECT sensor • Related harness
				ECT is 60 °C {140 °F}	Approx. 1.4
				ECT is 80 °C {176 °F}	Approx. 0.9
2K	—	—	—		—	—
2L	Fuel injector No.4 power supply	Fuel injector No.4	Ignition switch is ON		B+	• Related harness
2M	ESA control	Ignition coil No.4	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Ignition coil No.4 • Related harness
2N^*6	EGR control	EGR valve	Idle (EGR control operating)		1.0 or less	• EGR valve • Related harness
2O	—	—	—		—	—
2P	CKP	CKP sensor	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• CKP sensor • Related harness
2Q	ESA control	Ignition coil No.3	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Ignition coil No.3 • Related harness
2R^*6	EGR control	EGR valve	Idle (EGR control operating)		B+	• EGR valve • Related harness
2S^*6	MAP sensor	MAP sensor	Ignition switch is ON	Altitude: 0—2,500 m {0—8,202 ft}	1.8—2.8^*7	• MAP sensor • Related harness
2T	Input/output device power supply	CKP sensor, CMP sensor, HO2S, purge solenoid valve, EGR valve	Ignition switch is ON		B+	• Related harness
2U	ESA control	Ignition coil No.2	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Ignition coil No.2 • Related harness
2V^*6	EGR control	EGR valve	Idle (EGR control operating)		B+	• EGR valve • Related harness
2W	Constant voltage (vref)	TP sensor, MAP sensor	Ignition switch is ON		Approx. 5.0	• TP sensor • MAP sensor • Related harness
2X	IAC (+)	IAC valve	Idle		B+	• IAC valve • Related harness
2Y	ESA control	Ignition coil No.1	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Ignition coil No.1 • Related harness
2Z^*6	EGR control	EGR valve	Idle (EGR control operating)		1.0 or less	• EGR valve • Related harness
2AA	TP	TP sensor	Ignition switch is ON	CTP	0.3—1.0	• TP sensor • Related harness
2AA	TP	TP sensor	Ignition switch is ON	WOT	3.1—4.5	• TP sensor • Related harness
2AB	IAC (–)	IAC valve	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• IAC valve • Related harness
2AC	PSP switch	PSP switch	Idle	Steering wheel at straight ahead position	B+	• PSP switch • Related harness
2AC	PSP switch	PSP switch	Idle	While turning steering wheel	1.0 or less	• PSP switch • Related harness
2AD	—	—	—		—	—
2AE	GND	TP sensor	Under any condition		1.0 or less	• Related harness
2AF	VTCS (open)	VTCS shutter valve actuator	Engine is hot	When ignition switch is ON.	B+^*5	• VTCS shutter valve actuator • Related harness
			Idle after cold start	When the ECT reaches 60 °C {140 °F}	B+^*5
			Except above		1.0 or less
2AG	Variable valve timing control (–)	OCV	Under any condition		1.0 or less	• OCV • Related harness
2AH	—	—	—		—	—
2AI	Oxygen concentration	HO2S	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• HO2S • Related harness
2AJ	VTCS (close)	VTCS shutter valve actuator	Engine is cold	When ignition switch is ON.	B+^*5	• VTCS shutter valve actuator • Related harness
2AJ	VTCS (close)	VTCS shutter valve actuator	Except above		1.0 or less	• VTCS shutter valve actuator • Related harness
2AK	Variable valve timing control (+)	OCV	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• OCV • Related harness
2AL	—	—	—		—	—
2AM	HO2S heater control	HO2S heater	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• HO2S heater • Related harness
2AN	Generator control	Generator (terminal D)	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Generator • Related harness
2AO^*4	VIS (open)	VIS shutter valve actuator	When ignition switch is ON.		1.0 or less	• VIS shutter valve actuator • Related harness
			When the engine speed is increased gradually and reaches 4,100 rpm.		B+^*5
			Except above		1.0 or less
2AP	—	—	—		—	—
2AQ	IAT	IAT sensor	Ignition switch is ON	IAT is 20 °C {68 °F}	Approx. 2.5	• IAT sensor • Related harness
2AQ	IAT	IAT sensor	Ignition switch is ON	IAT is 30 °C {86 °F}	Approx. 1.8	• IAT sensor • Related harness
2AR	Generator output voltage	Generator (terminal P)	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Generator • Related harness
2AS^*4	VIS (close)	VIS shutter valve actuator	When ignition switch is ON.		B+^*5	• VIS shutter valve actuator • Related harness
			When the engine speed is decreased gradually and reaches 4,100 rpm.		B+^*5
			Except above		1.0 or less
2AT	—	—	—		—	—
2AU	MAF	MAF sensor	Ignition switch is ON		Approx. 0.7	• MAF sensor • Related harness
2AU	MAF	MAF sensor	Idle		Approx. 1.3	• MAF sensor • Related harness
2AV	Purge control	Purge solenoid valve	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• Purge solenoid valve • Related harness
2AW	—	—	—		—	—
2AX	GND	ECT sensor, MAP sensor, HO2S	Under any condition		1.0 or less	• Related harness
2AY	GND	IAT sensor	Under any condition		1.0 or less	• Related harness
2AZ	GND	GND	Under any condition		1.0 or less	• Related harness
2BA	Knocking	Knock sensor	Ignition switch is ON (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter)		Approx. 2.4	• Knock sensor • Related harness
2BB	CMP	CMP sensor	Inspect using the wave profile. (See Inspection Using An Oscilloscope (Reference).)			• CMP sensor • Related harness
2BC	GND	MAF sensor	Under any condition		1.0 or less	• Related harness
2BD	GND	GND	Under any condition		1.0 or less	• Related harness
2BE	GND	HO2S shield wire	Under any condition		1.0 or less	• Related harness
2BF	GND	CMP sensor	Under any condition		1.0 or less	• Related harness
2BG	MAF sensor power supply	MAF sensor	Idle		B+	• Related harness
2BH	GND	GND	Under any condition		1.0 or less	• Related harness

*1 :ATX

*2 :Turn the test mode on using the WDS simulation test.

*3 :MTX

*4 :ZY

*5 :The voltage changes for a specified time.

*6 :ZJ

*7 :The voltage may very excessively depending on the weather or battery conditions.

Inspection Using An Oscilloscope (Reference)

Input/turbine speed sensor signal

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PCM terminals

• 1O (+)—1K (–)

Oscilloscope setting

• 2 V/DIV (Y), 2 ms/DIV (X), DC range

Vehicle condition

• Idle at P position

Steering angle sensor signal

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PCM terminals

• Signal A: 1R (+)—Negative battery terminal (–)

• Signal B: 1M (+)—Negative battery terminal (–)

Oscilloscope setting

• DC range

Vehicle condition

• Steering wheel in neutral position (not turned).

Vehicle speed output signal

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PCM terminals

• 1Z (+)—Negative battery terminal (–)

Oscilloscope setting

• 5 V/DIV (Y), 20 ms/DIV (X), DC range

Vehicle condition

• Vehicle speed is 20 km/h {12 mph}.

Vehicle speed (+) signal (MTX)

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PCM terminals

• 1AE (+)—Negative battery terminal (–)

Oscilloscope setting

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

Vehicle condition

• Vehicle speed is 20 km/h {12 mph}.

Pressure control solenoid (–) signal

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PCM terminals

• 1AV (+)—Negative battery terminal (–)

Oscilloscope setting

• 5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

• Idle

Vehicle speed signal (ATX)

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PCM terminals

• 1AY (+)—Negative battery terminal (–)

Oscilloscope setting

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

Vehicle condition

• Vehicle speed is 32 km/h {20 mph}.

Shift solenoid A signal

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PCM terminals

• 1AZ (+)—Negative battery terminal (–)

Oscilloscope setting

• 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition

• 4GR

Shift solenoid C signal

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PCM terminals

• 1BD (+)—Negative battery terminal (–)

Oscilloscope setting

• 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition

• 1GR or 2GR

Shift solenoid B signal

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PCM terminals

• 1BH (+)—Negative battery terminal (–)

Oscilloscope setting

• 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition

• 1GR (except L range (HOLD))

Fuel injection control signal

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PCM terminals

• No.1: 2B (+)—Negative battery terminal (–)

• No.2: 2C (+)—Negative battery terminal (–)

• No.3: 2D (+)—Negative battery terminal (–)

• No.4: 2H (+)—Negative battery terminal (–)

Oscilloscope setting

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

Vehicle condition

• Idle after warm-up

ESA control signal

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PCM terminals

• No.1: 2Y (+)—Negative battery terminal (–)

• No.2: 2U (+)—Negative battery terminal (–)

• No.3: 2Q (+)—Negative battery terminal (–)

• No.4: 2M (+)—Negative battery terminal (–)

Oscilloscope setting

• 0.5 V/DIV (Y), 40 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

CKP signal

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PCM terminals

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

Oscilloscope setting

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

Vehicle condition

• Idle after warm-up

IAC (–) signal

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PCM terminals

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

Oscilloscope setting

• 2 V/DIV (Y), 2 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

Oxygen concentration signal

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PCM terminals

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

Oscilloscope setting

• 0.2 V/DIV (Y), 1 s/DIV (X), DC range

Vehicle condition

• Idle after warm-up

Variable valve timing control (+) signal

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PCM terminals

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

Oscilloscope setting

• 5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

HO2S heater signal

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PCM terminals

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

Oscilloscope setting

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

Vehicle condition

• Idle after warm-up

Generator control signal

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PCM terminals

• 2AN (+)—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

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

Oscilloscope setting

• 2 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

Purge control signal

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PCM terminals

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

Oscilloscope setting

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

Vehicle condition

• Idle after warm-up

CMP signal

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PCM terminals

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

Oscilloscope setting

• 1 V/DIV (Y), 20 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up