PCM INSPECTION [ZY]

id0140008025c0


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)

am2zzw00004786

Terminal

Signal name

Connected to

Test condition

Voltage (V)

Inspection item
1A*1
Ground
Input/turbine speed sensor shield wire
Under any condition
Below 1.0
•  Related wiring harness
1B
APP sensor No.1 ground
APP sensor
Under any condition
Below 1.0
•  Related wiring harness
1C
APP sensor No.2 ground
APP sensor
Under any condition
Below 1.0
•  Related wiring harness
1D*1
Shift solenoid A
Shift solenoid A
(See Inspection Using An Oscilloscope (Reference).)
•  Shift solenoid A
•  Related wiring harness
1E
APP sensor No.1 power supply
APP sensor
Under any condition
Approx. 5.0
•  Related wiring harness
1F
APP sensor No.2 power supply
APP sensor
Under any condition
Approx. 5.0
•  Related wiring harness
1G
Brake switch
Brake switch
Brake pedal depressed
B+
•  Brake switch
•  Related wiring harness
Brake pedal released
Below 1.0
1H*1
Shift solenoid B
Shift solenoid B
(See Inspection Using An Oscilloscope (Reference).)
•  Shift solenoid B
•  Related wiring harness
1I
—
—
—
—
—
1J
Neutral switch*3
Neutral switch
Ignition switch is turned to the ON position.
Neutral
Below 1.0
•  Neutral switch
•  Related wiring harness
Except above
B+
Manual down*4
Down switch
Ignition switch is turned to the ON position.
Detects down-shift operation of selector lever in M range.
Below 1.0
•  Selector lever
•  Related wiring harness
Except above
B+
1K*1
Shift solenoid D
Shift solenoid D
Idle
P, N position
D (4GR),
L (1GR)*5
M (1GR, 4GR)*4
range
B+
•  Shift solenoid D
•  Related wiring harness
Except above
Below 1.0
1L*1
Shift solenoid C
Shift solenoid C
(See Inspection Using An Oscilloscope (Reference).)
•  Shift solenoid C
•  Related wiring harness
1M
CPP switch*3
CPP switch
Ignition switch is turned to the ON position.
Clutch pedal is depressed
Below 1.0
•  CPP switch
•  Related wiring harness
Clutch pedal is released
B+
Manual up*4
Up switch
Ignition switch is turned to the ON position.
Detects up-shift operation of selector lever in M range
Below 1.0
•  Selector lever
•  Related wiring harness
Except above
B+
1N
M range switch*4
M range switch
Ignition switch is turned to the ON position.
M range
Below 1.0
•  Selector lever
•  Related wiring harness
Except above
B+
Hold switch*5
Hold switch
Ignition switch is turned to the ON position.
Hold switch depressed
Below 1.0
•  Hold switch
•  Related wiring harness
Hold switch released
B+
1O*1
Shift solenoid E
Shift solenoid E
During TCC operation
B+
•  Shift solenoid E
•  Related wiring harness
Except above
Below 1.0
1P*1
Pressure control solenoid (+)
Pressure control solenoid
Idle
B+
•  Pressure control solenoid
•  Related wiring harness
1Q
—
—
—
—
—
1R*1
Input/turbine speed sensor (+)
Input/turbine speed sensor
(See Inspection Using An Oscilloscope (Reference).)
•  Input/turbine speed sensor
•  Related wiring harness
1S*7
Security light
Instrument cluster
Security light illuminate
Below 1.0
•  Security light
•  Related wiring harness
Security light not illuminate
B+
1T*1
Pressure control solenoid (–)
Pressure control solenoid
(See Inspection Using An Oscilloscope (Reference).)
•  Pressure control solenoid
•  Related wiring harness
1U
—
—
—
—
—
1V*1
Input/turbine speed sensor (–)
Input/turbine speed sensor
(See Inspection Using An Oscilloscope (Reference).)
•  Input/turbine speed sensor
•  Related wiring harness
1W*7
Immobilizer system communication
Immobilizer system related module
Because this terminal is for CAN, no valid determination of terminal voltage is possible.
•  Related wiring harness
1X*7
Starter relay
Starter relay
Cranking
Below 1.0
•  Starter relay
•  Related wiring harness
1Y
—
—
—
—
—
1Z
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
1AA*7
Immobilizer system communication
Immobilizer system related module
Because this terminal is for CAN, no valid determination of terminal voltage is possible.
•  Related wiring harness
1AB
—
—
—
—
—
1AC
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.)
Approx. 5.0
1AD
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
1AE
CAN_H
CAN system related module, DLC-2
Because this terminal is for CAN, no valid determination of terminal voltage is possible.
•  Related wiring harness
1AF
—
—
—
—
—
1AG
Ground
Current sensor, Evaporator temperature sensor, TFT sensor, TR switch
Under any condition
Below 1.0
•  Related wiring harness
1AH*1
ATF temperature
TFT sensor
Ignition switch is turned to the ON position.
ATF temperature is 20 °C {68 °F}
Approx. 3.3
•  TFT sensor
•  Related wiring harness
ATF temperature is 40 °C {104 °F}
Approx. 2.4
ATF temperature is 60 °C {140 °F}
Approx. 1.5
1AI
CAN_L
CAN system related module, DLC-2
Because this terminal is for CAN, no valid determination of terminal voltage is possible.
•  Related wiring harness
1AJ
Main relay
Main relay
Ignition switch off and a certain period has elapsed.
B+
•  Main relay
•  Related wiring harness
Ignition switch is turned to the ON position.
Below 1.0
1AK
Current sensor power supply
Current sensor
Under any condition
Approx. 5.0
•  Related wiring harness
1AL
Current sensor
Current sensor
Ignition switch is turned to the ON position.
0.5—4.5
•  Current sensor
•  Related wiring harness
1AM
—
—
—
—
—
1AN
A/C cut-off control
A/C relay
A/C operating
Below 1.0
•  A/C relay
•  Related wiring harness
A/C not operating
B+
1AO
A/C
Refrigerant pressure switch (high, low), A/C amplifier
Refrigerant pressure is more than the specification or less than the specification. (Refrigerant pressure switch (high, low) is off.)
Approx. 5.0
•  Refrigerant pressure switch (high, low)
•  A/C amplifier
•  Related wiring harness
Except above
Below 1.0
1AP*3
Vehicle speed (+)
VSS
(See Inspection Using An Oscilloscope (Reference).)
•  VSS
•  Related wiring harness
1AQ*7
Fuel pump control
Fuel pump relay
Ignition switch is turned to the ON position and a certain period has elapsed.
B+
•  Fuel pump relay
•  Related wiring harness
Cranking
Below 1.0
Idle
1AR*8
Fuel pump control
Fuel pump relay
Ignition switch is turned to the ON position and a certain period has elapsed.
B+
•  Fuel pump relay
•  Related wiring harness
Cranking
Below 1.0
Idle
1AS*1
Selector lever position
TR switch
Ignition switch is turned to the ON position.
P position
Approx. 4.6
•  TR switch
•  Related wiring harness
R range
Approx. 3.9
N position
Approx. 3.2
D range*4
Approx. 1.7
M range*4
Approx. 1.7
D range*5
Approx. 2.5
S range*5
Approx. 1.7
L range*5
Approx. 0.94
1AT*3
Vehicle speed (–)
VSS
Under any condition
Below 1.0
•  VSS
•  Related wiring harness
1AU
—
—
—
—
—
1AV
Cooling fan control
Cooling fan relay No.1
During test mode*2
Accelerator pedal released
B+
•  Cooling fan relay No.1
•  Related wiring harness
Accelerator pedal depressed
Below 1.0
1AW
Evaporator temperature sensor
Evaporator temperature sensor
Ignition switch is turned to the ON position.
Evaporator temperature is 20 °C {68 °F}
Approx. 2.5
•  Evaporator temperature sensor
•  Related wiring harness
1AX*1
Vehicle speed
VSS
(See Inspection Using An Oscilloscope (Reference).)
•  VSS
•  Related wiring harness
1AY
VSS output
Lighting system related module
(See Inspection Using An Oscilloscope (Reference).)
•  Lighting system related module
•  Related wiring harness
1AZ
Cooling fan control
Cooling fan relay No.2
During test mode*2
Accelerator pedal released
B+
•  Cooling fan relay No.2
•  Related wiring harness
Accelerator pedal depressed
Below 1.0
1BA
ECT output
Climate control unit
Ignition switch is turned to the ON position.
ECT is 20 °C {68 °F}
Approx. 3.0
•  Climate control unit
•  Related wiring harness
ECT is 60 °C {140 °F}
Approx. 1.4
ECT is 80 °C {176 °F}
Approx. 0.9
1BB
B+
Main relay
Ignition switch off.
Below 1.0
•  Main relay
•  Battery
•  Related wiring harness
Ignition switch is turned to the ON position.
B+
1BC
Back-up power supply
Battery
Under any condition
B+
•  Battery
•  Related wiring harness
1BD
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+
1BE
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+
1BF
B+
Main relay
Ignition switch off.
Below 1.0
•  Main relay
•  Battery
•  Related wiring harness
Ignition switch is turned to the ON position.
B+
1BG*1
B+
Main relay
Ignition switch off.
Below 1.0
•  Main relay
•  Battery
•  Related wiring harness
Ignition switch is turned to the ON position.
B+
1BH
Ignition switch
Ignition switch
Ignition switch off
Below 1.0
•  Ignition switch
•  Related wiring harness
Ignition switch is turned to the ON position.
B+
2A
Fuel injection control
Fuel injector No.1
(See Inspection Using An Oscilloscope (Reference).)
•  Fuel injector No.1
•  Related wiring harness
2B
Fuel injection control
Fuel injector No.2
(See Inspection Using An Oscilloscope (Reference).)
•  Fuel injector No.2
•  Related wiring harness
2C
Fuel injection control
Fuel injector No.3
(See Inspection Using An Oscilloscope (Reference).)
•  Fuel injector No.3
•  Related wiring harness
2D
Ignition coil power supply
Ignition coil
Ignition switch is turned to the ON position.
B+
•  Related wiring harness
2E
Fuel injector No.1 power supply
Fuel injector No.1
Ignition switch is turned to the ON position.
B+
•  Related wiring harness
2F
Fuel injector No.2 power supply
Fuel injector No.2
Ignition switch is turned to the ON position.
B+
•  Related wiring harness
2G
Fuel injector No.3 power supply
Fuel injector No.3
Ignition switch is turned to the ON position.
B+
•  Related wiring harness
2H
Fuel injection control
Fuel injector No.4
(See Inspection Using An Oscilloscope (Reference).)
•  Fuel injector No.4
•  Related wiring harness
2I
Power supply
CMP sensor, Purge solenoid valve, OCV, CKP sensor
Ignition switch is turned to the ON position.
B+
•  Related wiring harness
2J
Ground
ECT sensor, Rear HO2S, Variable tumble shutter valve switch, MAP sensor, KS shield wire
Under any condition
Below 1.0
•  Related wiring harness
2K
EGR control
EGR valve
Idle (EGR control operating)
Below 1.0
•  EGR valve
•  Related wiring harness
2L
Fuel injector No.4 power supply
Fuel injector No.4
Ignition switch is turned to the ON position.
B+
•  Related wiring harness
2M
Ground
CMP sensor
Under any condition
Below 1.0
•  Related wiring harness
2N
CMP
CMP sensor
(See Inspection Using An Oscilloscope (Reference).)
•  CMP sensor
•  Related wiring harness
2O
EGR control
EGR valve
Idle (EGR control operating)
B+
•  EGR valve
•  Related wiring harness
2P
EGR control
EGR valve
Idle (EGR control operating)
B+
•  EGR valve
•  Related wiring harness
2Q
Ground
IAT sensor
Under any condition
Below 1.0
•  Related wiring harness
2R
IAT
IAT sensor
Ignition switch is turned to the ON position.
IAT is 20 °C {68 °F}
Approx. 2.2
•  IAT sensor
•  Related wiring harness
IAT is 30 °C {86 °F}
Approx. 1.8
2S
Evaporative purge control
Purge solenoid valve
(See Inspection Using An Oscilloscope (Reference).)
•  Purge solenoid valve
•  Related wiring harness
2T
EGR control
EGR valve
Idle (EGR control operating)
B+
•  EGR valve
•  Related wiring harness
2U
Ground
MAF sensor
Under any condition
Below 1.0
•  Related wiring harness
2V
MAF
MAF sensor
Ignition switch is turned to the ON position.
Approx. 0.7
•  MAF sensor
•  Related wiring harness
Idle
Approx. 1.3
2W
Variable valve timing control
OCV
(See Inspection Using An Oscilloscope (Reference).)
•  OCV
•  Related wiring harness
2X
Front HO2S heater control
Front HO2S (heater)
(See Inspection Using An Oscilloscope (Reference).)
•  Front HO2S
•  Related wiring harness
2Y
CKP
CKP sensor
(See Inspection Using An Oscilloscope (Reference).)
•  CKP sensor
•  Related wiring harness
2Z
Front HO2S
Front HO2S
Idle (after warm-up)
Approx. 2.8
•  Front HO2S
•  Related wiring harness
2AA
—
—
—
—
—
2AB
Rear HO2S heater control
Rear HO2S (heater)
Idle (after warm-up)
Below 1.0
•  Rear HO2S
•  Related wiring harness
Heavy load
B+
2AC
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 60 °C {140 °F}
Approx. 1.4
ECT is 80 °C {176 °F}
Approx. 0.9
2AD
Front HO2S
Front HO2S
Idle (after warm-up)
Approx. 2.4
•  Front HO2S
•  Related wiring harness
2AE
Generator output voltage
Generator (terminal P: stator coil)
(See Inspection Using An Oscilloscope (Reference).)
•  Generator
•  Related wiring harness
2AF
Generator field coil control
Generator (terminal D: field coil)
(See Inspection Using An Oscilloscope (Reference).)
•  Generator
•  Related wiring harness
2AG
Variable tumble control (open)
Variable tumble shutter valve actuator
The engine is hot.
Directly after the ignition switch is turned to the ON position.
B+*6
•  Variable tumble shutter valve actuator
•  Related wiring harness
Idle after cold start.
When the ECT is increased instant and reaches 60 °C {140 °F}
Except above
Below 1.0
2AH
Rear HO2S
Rear HO2S
Idle (after warm-up)
Approx.
0—1.0
•  Rear HO2S
•  Related wiring harness
2AI
Variable intake air control (close)
Variable intake air shutter valve actuator
Directly after the ignition switch is turned to the ON position.
B+*6
•  Variable intake air shutter valve actuator
•  Related wiring harness
When the engine speed is decreased gradually and reaches 4,100 rpm.
Except above
Below 1.0
2AJ
Variable intake air control (open)
Variable intake air shutter valve actuator
Directly after the ignition switch is turned to the ON position.
Below 1.0
•  Variable intake air shutter valve actuator
•  Related wiring harness
When the engine speed is increased gradually and reaches 4,100 rpm.
B+*6
Except above
Below 1.0
2AK
Variable tumble control (close)
Variable tumble shutter valve actuator
The engine is cold.
Directly after the ignition switch is turned to the ON position.
B+*6
•  Variable tumble shutter valve actuator
•  Related wiring harness
Except above
Below 1.0
2AL
Variable tumble shutter valve switch
Variable tumble shutter valve switch
ECT is less than 60 °C {140 °F}
Engine speed is 3,250 rpm or less.
Approx. 3.6
•  Variable tumble shutter valve switch
•  Related wiring harness
other
Approx. 0.8
2AM
—
—
—
—
—
2AN
Knocking
KS
Ignition switch is turned to the ON position. (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter.)
Approx. 2.4
•  KS
•  Related wiring harness
2AO
Power supply
Variable tumble shutter valve switch, MAP sensor
Ignition switch is turned to the ON position.
Approx. 5.0
•  Related wiring harness
2AP
MAP sensor
MAP sensor
Ignition switch is turned to the ON position.
Altitude: 0—2,500 m
1.8—2.8
•  MAP sensor
•  Related wiring harness
2AQ
ESA control
Ignition coil No.1
(See Inspection Using An Oscilloscope (Reference).)
•  Ignition coil No.1
•  Related wiring harness
2AR
ESA control
Ignition coil No.2
(See Inspection Using An Oscilloscope (Reference).)
•  Ignition coil No.2
•  Related wiring harness
2AS
TP sensor power supply
Throttle body (TP sensor)
Under any condition
Approx. 5.0
•  Related wiring harness
2AT
TP sensor No.2
Throttle body (TP sensor)
Ignition switch is turned to the ON position.
Accelerator pedal depressed
Approx. 0.4
•  TP sensor
•  Related wiring harness
Accelerator pedal released
Approx. 4.5
2AU
ESA control
Ignition coil No.3
(See Inspection Using An Oscilloscope (Reference).)
•  Ignition coil No.3
•  Related wiring harness
2AV
ESA control
Ignition coil No.4
(See Inspection Using An Oscilloscope (Reference).)
•  Ignition coil No.4
•  Related wiring harness
2AW
TP sensor ground
Throttle body (TP sensor)
Under any condition
Below 1.0
•  Related wiring harness
2AX
TP sensor No.1
Throttle body (TP sensor)
Ignition switch is turned to the ON position.
Accelerator pedal depressed
Approx. 4.6
•  TP sensor
•  Related wiring harness
Accelerator pedal released
Approx. 0.5
2AY
—
—
—
—
—
2AZ
Ground
Body ground
Under any condition
Below 1.0
•  Related wiring harness
2BA
Ground
Body ground
Under any condition
Below 1.0
•  Related wiring harness
2BB
Ground
Body ground
Under any condition
Below 1.0
•  Related wiring harness
2BC
Power supply
MAF sensor, EGR valve
Idle
B+
•  Related wiring harness
2BD
Ground
Body ground
Under any condition
Below 1.0
•  Related wiring harness
2BE
Throttle control (–)
Throttle body (throttle valve actuator)
(See Inspection Using An Oscilloscope (Reference).)
•  Throttle valve actuator
•  Related wiring harness
2BF
Throttle control (+)
Throttle body (throttle valve actuator)
(See Inspection Using An Oscilloscope (Reference).)
•  Throttle valve actuator
•  Related wiring harness
2BG
Ground
Front HO2S shield wire, Rear HO2S shield wire
Under any condition
Below 1.0
•  Related wiring harness
2BH
Ground
Body ground
Under any condition
Below 1.0
•  Related wiring harness

*1  :ATX
*2  :Turn the test mode on using the WDS simulation function.
*3  :MTX
*4  :Sport AT
*5  :4AT
*6  :The voltage changes for the specified period of time.
*7  :With immobilizer system
*8  :Without immobilizer system


Inspection Using An Oscilloscope (Reference)


Shift solenoid A signal

am2zzw00004787
PCM terminals
•  1D (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
•  4GR


Shift solenoid B signal

am2zzw00004788
PCM terminals
•  1H (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
•  1GR (D, S range)


Shift solenoid C signal

am2zzw00004789
PCM terminals
•  1L (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
•  1GR or 2GR


Input/turbine speed sensor signal

am2zzw00004790
PCM terminals
•  1R (+)—1V (–)
Oscilloscope setting
•  2 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
•  Idle at P position


Pressure control solenoid (–) signal

am2zzw00004791
PCM terminals
•  1T (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
•  Idle


Vehicle speed (+) signal (MTX)

am2zzw00004792
PCM terminals
•  1AP (+)—Negative battery terminal (–)
Oscilloscope setting
•  1 V/DIV (Y), 10 ms/DIV (X), DC range
Vehicle condition
•  Vehicle speed is 20 km/h {6.2 mph}.


Vehicle speed signal (ATX)

am2zzw00004793
PCM terminals
•  1AX (+)—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}.


Vehicle speed output signal

am2zzw00004794
PCM terminals
•  1AY (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
•  Vehicle speed is 20 km/h {6.2 mph}.


Fuel injection control signal

am2zzw00004795
PCM terminals
•  Fuel injector No.1: 2A (+)—Negative battery terminal (–)
•  Fuel injector No.2: 2B (+)—Negative battery terminal (–)
•  Fuel injector No.3: 2C (+)—Negative battery terminal (–)
•  Fuel injector No.4: 2H (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 10 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm-up


CMP signal

am2zzw00004796
PCM terminals
•  2N (+)—Negative battery terminal (–)
Oscilloscope setting
•  1 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm-up


Evaporative purge control signal

am2zzw00004797
PCM terminals
•  2S (+)—Negative battery terminal (–)
Oscilloscope setting
•  2 V/DIV (Y), 0.1 s/DIV (X), DC range
Vehicle condition
•  Idle after warm-up


Variable valve timing control signal

am2zzw00004798
PCM terminals
•  2W (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm-up


Front HO2S heater control signal

am2zzw00004799
PCM terminals
•  2X (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 50 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm-up (no load condition)


CKP signal

am2zzw00004800
PCM terminals
•  2Y(+)—Negative battery terminal (–)
Oscilloscope setting
•  1 V/DIV (Y), 10 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm-up


Generator output voltage signal

am2zzw00004801
PCM terminals
•  2AE (+)—Negative battery terminal (–)
Oscilloscope setting
•  2 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm-up


Generator field coil control signal

am2zzw00004802
PCM terminals
•  2AF (+)—Negative battery terminal (–)
Oscilloscope setting
•  0.5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm-up


ESA control signal

am2zzw00004803
PCM terminals (except for California emission regulation applicable model)
•  Fuel injection No.1: 2AQ (+)—Negative battery terminal (–)
•  Fuel injection No.2: 2AR (+)—Negative battery terminal (–)
•  Fuel injection No.3: 2AU (+)—Negative battery terminal (–)
•  Fuel injection No.4: 2AV (+)—Negative battery terminal (–)
Oscilloscope setting
•  0.5 V/DIV (Y), 40 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm-up


Throttle control (–) signal

am2zzw00004804
PCM terminals
•  2BE (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
•  When the accelerator pedal changes from fully depressed to fully released while the ignition switch is in the ON position


Throttle control (+) signal

am2zzw00004805
PCM terminals
•  2BF (+)—Negative battery terminal (–)
Oscilloscope setting
•  5 V/DIV (Y), 0.4 ms/DIV (X), DC range
Vehicle condition
•  Ignition switch is turned to the ON position.


Using SST (WDS or Equivalent)

Note
•  PIDs for the following parts are not available on this model. Go to the appropriate part inspection page.
―  CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [ZY].)
―  Main relay (See RELAY INSPECTION.)

1.  Connect the SST (WDS or equivalent) to the DLC-2.

am2zzw00004806

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.
•  The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are as follows.
―  ACCS, ALTF, ARPMDES, EVAPCP, FAN1, FAN2, FP, FUELPW1, GENVDSD, HTR11, HTR12, IMRC, IMTV, INJ_1, INJ_2, INJ_3, INJ_4, LPS, SEGRP, SSA/SS1, SSB/SS2, SSC/SS3, SSD/SS4, SSE_SS5, VT DUTY1 Wt

Item (definition)

Unit/Condition

Condition/Specification (Reference)

Inspection item(s)

PCM terminal
A/CL V
(A/C load signal voltage)
V
•  A/C is not operating: Approx. 5.0 V
•  A/C is operating: 1.0 V or less
•  Refrigerant pressure switch (middle)
1AC
A/CT
(Evaporator temperature)
°C
°F
•  Evaporator temperature is 20 °C {68 °F}: 20 °C {68 °F}
•  Evaporator temperature sensor
1AW
A/CT V
(Evaporator temperature signal voltage)
V
•  Evaporator temperature sensor is 20 °C {68 °F}: Approx. 2.5 V
AC_REQ
(Refrigerant pressure switch (high, low)
On/Off
•  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
1AO
ACCS
(A/C relay)
On/Off
•  A/C relay is ON: On
•  A/C relay is OFF: Off
•  The following PIDs
―  CPP*1, CPP/PNP*1, ECT, PCM_T, RPM, TP, TR*2, AC_REQ, COLP
1AN
ALT_CUR_S
(Current sensor)
A
•  Ignition switch is turned to the ON position: –100—100 A
•  Increase in electrical load: Increases
•  Current sensor
1AL
V
•  Ignition switch is turned to the ON position: 0.5—4.5 V
•  Increase in electrical load: Decreases
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
2AF
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
2AE
APP
(Accelerator pedal position)
%
•  Accelerator pedal released: 0 %
•  Accelerator pedal depressed: 100 %
•  The following PIDs
―  APP1, APP2
—
APP1
(APP sensor No.1)
%
•  Accelerator pedal released: Approx. 32 %
•  Accelerator pedal depressed: Approx. 78 %
•  APP sensor
1Z
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
1AD
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, MAF, MAP, VSS, AC_REQ, COLP
—
BOO
(Brake switch)
On/Off
•  Brake pedal depressed: On
•  Brake pedal released: Off
•  Brake switch
1G
CHRGLP
(Generator warning light)
On/Off
•  Idle, Generator warning light illuminate: On
•  Idle, Generator warning light not illuminate: Off
•  Generator warning light
—
COLP
(Refrigerant pressure switch (middle))
On/Off
•  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)
1AC
CPP*1
(Clutch pedal position)
On/Off
•  Clutch pedal depressed: On
•  Clutch pedal released: Off
•  CPP switch
1M
CPP/PNP*1
(Shift lever position)
Drive/Neutral
•  Neutral: Neutral
•  Other than neutral: Drive
•  Neutral switch
1J
DTCCNT
(Number of DTC detected)
—
•  Number of DTCs stored
—
—
DWN SW*3
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
ECT
(Engine coolant temperature)
°C
°F
•  Ignition switch is turned to the ON position: Indicate the ECT
•  ECT sensor
2AC
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
EQ_RAT11
(Actual lambda signal)
—
•  Idle after warm-up: Approx. 1
•  Front HO2S
—
EQ_RAT11_DSD
(Target lambda)
—
•  Target lambda (Excess air factor = supplied air amount / theoretical air/fuel ratio)
•  Front HO2S
—
ETC_ACT
(Throttle control)
°
•  Accelerator pedal released: 0 °
•  Accelerator pedal depressed: 94.5 °
•  TP sensor
—
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, MAF, O2S11, O2S12, BOO, VPWR
•  Purge solenoid valve
2S
FAN1
(Cooling fan relay No.1 control signal)
On/Off
•  During test mode
CTP: Off
WOT: On
•  The following PIDs
―  ECT, test, TP
1AV
FAN2
(Cooling fan relay No.2 control signal)
On/Off
•  During test mode
CTP: Off
WOT: On
•  The following PIDs
―  ECT, test, TP
1AZ
FP
(Fuel pump relay)
On/Off
•  Ignition switch is turned to the ON position and a certain period has elapsed: Off
•  Cranking: On
•  Idle: On
•  Fuel pump relay
1AQ*4
1AR*5
FUELPW
(Fuel injector duration)
ms
•  Idle: Approx. 2.0 ms
•  The following PIDs
―  CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP, MAF, O2S11, O2S12, MAP, VSS, TR*2, BOO, AC_REQ, COLP, VPWR
2A, 2B, 2C, 2H
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, MAF, O2S11, O2S12, MAP, VSS, TR*2, BOO, AC_REQ, COLP, VPWR
—
GEAR*2
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
GENVDSD
(Target generator voltage)
V
•  Indicate the target generated voltage
•  The following PIDs
―  ECT, IAT, RPM, VSS, ALTT V, VPWR
•  Generator
—
HTM_CNT*2
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
HTM_DIS*2
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
HTR11
(Front HO2S heater control)
On/Off
•  Ignition switch is turned to the ON position: Off
•  Idle: On
•  The following PIDs
―  ECT, IAT, RPM, TP, MAF, MAP, VPWR
2X
HTR12
(Rear HO2S heater control)
On/Off
•  Ignition switch is turned to the ON position: Off
•  Idle: On
•  The following PIDs
―  ECT, IAT, RPM, TP, MAF, MAP, VPWR
2AB
IAT
(Intake air temperature)
°C
°F
•  Ignition switch is turned to the ON position: Indicate the IAT
•  IAT sensor
2R
V
•  IAT is 20 °C {68 °F}: Approx. 2.2 V
•  IAT is 30 °C {86 °F}: Approx. 1.8 V
IMRC
(Variable tumble control)
On/Off
•  Cold start and 3,250 rpm or less: On
•  Hot start or 3,250 rpm or more: Off
•  The following PIDs
―  ECT, RPM, TP
2AG, 2AK
IMRC_POS
(Variable tumble control position)
%
•  ECT is less than 60 °C {140 °F} and 3,250 rpm or less: Approx. 72%
•  Other: Approx. 16%
•  The following PIDs
―  ECT, RPM
2AL
V
•  ECT is less than 60 °C {140 °F} and 3,250 rpm or less: Approx. 3.6 V
•  Other: Approx. 0.8 V
IMTV
(Variable intake air control)
On/Off
•  Engine speed is less than 4,100 rpm: On
•  Engine speed is 4,100 rpm or more: Off
•  The following PIDs
―  RPM
2AI, 2AJ
INGEAR
(Gears are engaged)
On/Off
MTX
•  When the following conditions are satisfied: On
―  Other than neutral
―  Clutch pedal released
•  Except above: Off
•  CPP switch
•  Neutral switch
1J, 1M
ATX
•  Driving range: On
•  Except above: Off
•  TR switch
—
IVS
(CTP condition)
Idle/Off_Idle
•  Idle: Idle
•  Other than idle: Off Idle
•  The following PIDs
―  TP
—
KNOCKR
(Knocking retard)
°
•  Ignition switch is turned to the ON position: 0 °
•  Idle: 0 °
•  KS
2AN
LINEDES*2
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
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, MAF, O2S11, O2S12, MAP, VSS, TR*2, BOO, AC_REQ, COLP, VPWR
—
LPS*2
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
MAF
(Mass air flow)
g/s
•  Ignition switch is turned to the ON position: Approx. 0 g/s
•  Idle: Approx. 2.7 g/s
•  MAF sensor
2V
V
•  Ignition switch is turned to the ON position: Approx. 0.7 V
•  Idle: Approx. 1.3 V
MAP
(Manifold absolute pressure)
kPa
psi
Bar
•  Ignition switch is turned to the ON position: Indicate the MAP
•  MAP sensor
2AP
V
•  Ignition switch is turned to the ON position
―  Altitude: 0—2,500 m: 1.8—2.8 V
MIL
(Malfunction indicator lamp)
On/Off
•  Idle, MIL illuminate: On
•  Idle, MIL not illuminate: Off
•  MIL
—
MIL_DIS
(Travelled distance since MIL illuminated)
km
mile
Travelled distance since MIL illuminated
MNL SW*3
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
NUMKEYS
(Number of keys stored in module)
—
•  Number of keys stored in module
—
—
O2S11
(Front HO2S)
mA
•  Idle after warm-up: Approx. 0 mA
•  Front HO2S
2Z
O2S12
(Rear HO2S)
V
•  Idle after warm-up: Approx. 0—1.0 V
•  Rear HO2S
2AH
OSS*2
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
PCM_T
(PCM temperature sensor)
V
•  Indicate the PCM temperature sensor voltage.
•  PCM
—
PCM_T_Max
(Maximum PCM temperature)
V
•  Ignition switch is turned to the ON position: Indicate the maximum PCM temperature sensor output voltage
•  PCM
—
RFCFLAG
(PCM adaptive memory produce verification)
Learnt/
Not Learnt
•  Idle (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
•  Verify after repair procedure
—
RO2FT1
(Rear oxygen sensor 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
2Y
SEGRP
(EGR control)
—
•  Ignition switch is turned to the ON position: 0 Step
•  Idle: 0 Step
•  Engine speed is 1,200—4,200 rpm: 0—52 Step
•  EGR valve
2K, 2O, 2P, 2T
SEGRP DSD
(EGR valve position desired)
%
•  Ignition switch is turned to the ON position: 0 %
•  Idle: 0 %
•  Engine speed is 1,200—4,200 rpm: 0—100 %
•  The following PIDs
―  MAF, TP, ECT, RPM, VSS
—
SELTESTDTC
—
•  Display the stored DTC by performing KOEO/KOER self-test
SHRTFT1
(Short term fuel trim (front))
%
•  Idle after warm-up: –25—+25 %
•  The following PIDs
―  CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP, MAF, O2S11, O2S12, MAP, VSS, TR*2, BOO, AC_REQ, COLP, VPWR
—
SHRTFT12
(Short term fuel trim (rear))
%
•  Idle after warm-up: Approx. 99 %
•  The following PIDs
―  CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP, MAF, O2S11, MAP, VSS, TR*2, BOO, AC_REQ, COLP, VPWR
—
SPARKADV
(Ignition timing)
°
•  Indicate the ignition timing
•  The following PIDs
―  CPP*1, CPP/PNP*1, ECT, IAT, RPM, TP, MAF, KNOCKR, TR*2, BOO, AC_REQ, COLP
2N
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].)
SSD/SS4*2
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
SSE_SS5*2
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
TCS*7
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
test
(Test mode)
On/Off
•  Test mode On: On
•  Test mode Off: 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].)
TIRESIZE
(Tire revolution per mile)
rev/mile
•  Indicate the tire revolution per a mile
TP
(Throttle position)
%
•  Accelerator pedal released: Approx. 21 %
•  Accelerator pedal depressed: Approx. 87 %
•  The following PIDs
―  TP1, TP2
—
TP REL
(Throttle position signal (relative value))
%
•  Accelerator pedal released: Approx. 10 %
•  Accelerator pedal depressed: Approx. 93 %
•  The following PIDs
―  TP1, TP2
—
TP1
(TP sensor No.1)
V
•  Accelerator pedal released: Approx. 0.5 V
•  Accelerator pedal depressed: Approx. 4.6 V
•  TP sensor
2AX
TP2
(TP sensor No.2)
%
•  Accelerator pedal released: Approx. 7 %
•  Accelerator pedal depressed: Approx. 90 %
•  TP sensor
2AT
V
•  Accelerator pedal released: Approx. 4.5 V
•  Accelerator pedal depressed: 0.4 V
TPCT
(TP sensor voltage at CTP)
V
•  Ignition switch is turned to the ON position: Approx. 1 V
•  The following PIDs
―  TP1, TP2
—
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].)
UP SW*3
(See PID/DATA MONITOR INSPECTION [FN4A-EL].)
VPWR
(Battery positive voltage)
V
•  Indicate the battery voltage
•  Battery
•  Main relay
1BB, 1BC, 1BF, *21BG
VSS
(Vehicle speed)
Km/h
mph
•  Vehicle running: Indicate the vehicle speed
•  VSS
•  ABS HU/CM
*11AP
*21AX
*6—
VT ACT1
(Actual valve timing)
°
•  Idle: Approx. 0 °
•  Racing: 0—20 °
•  The following PIDs
―  ECT, RPM, TP, MAF
•  OCV
2W
VT DIFF1
(Difference between target valve timing and actual valve timing)
°
•  Idle: 0 °
•  The following PIDs
―  ECT, RPM, TP, MAF
•  OCV
—
VT DUTY1
(OCV control)
%
•  Idle: Approx. 10 %
•  The following PIDs
―  ECT, RPM, TP, MAF
2W

*1  :MTX
*2  :ATX
*3  :Sport AT
*4  :With immobilizer system
*5  :Without immobilizer system
*6  :With ABS
*7  :4AT