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PCM INSPECTION [L3 Turbo]

PCM INSPECTION [L3 Turbo]

id0140b6802500


Using the WDS or Equivalent

Note
•  PIDs for the following parts are not available on this model. Perform the specific inspections for the following parts:
―  CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [L3 Turbo].)
―  Main relay (See RELAY INSPECTION.)

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

am6zzw00007994

2.  Turn the ignition switch to the ON position.

3.  Measure the PID value.

•  If PID value is not within the specification, follow the instructions in the “Inspection item” 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, ARPMDES, FAN_DUTY, EVAPCP, FP, FUELPW1, GENVDSD, HTR11, HTR12, IMRC, INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, test, VT DUTY1, WGC

PID/DATA monitor table (reference)

Monitor item (Definition)

Unit/Condition

Condition/Specification (Reference)

Inspection item

PCM terminal
AC_REQ (A/C switch)
On/Off
A/C switch and fan switch ON at ignition switch ON: On
A/C switch OFF at ignition switch ON: Off
•  A/C switch
1AC
ACCS (A/C relay)
On/Off
Ignition switch ON: Off
A/C switch ON and fan switch ON at idle: On
•  The following PIDs:
―  RPM, TP, ECT, ACSW
•  A/C relay
4N
ALTF (Generator field coil control duty value)
%
Ignition switch ON: 0%
Idle: 0—100%
Just after A/C switch ON and fan switch ON at idle: Duty value rises
•  The following PIDs:
―  IAT, ECT, RPM, VPWR, ALTT V
•  Generator
1AD
ALTT V (Generator output voltage)
V
Ignition switch ON: 0 V
Idle: Approx. 14.5 V*1 (E/L not operating)
•  Generator
1AB
AFR
—
Target air-oil ratio is displayed
•  A/F sensor
1Y
2D
2G
2J
AFR_ACT
—
Actual air-oil ratio is displayed
•  A/F sensor
1Y
2D
2G
2J
APP (Accelerator pedal position)
%
AP is released: 0%
AP is depressed: 100%
•  The following PIDs:
―  APP1, APP2
•  Accelerator pedal position sensor
2A
3D
APP1 (Accelerator pedal position)
%
AP is released: 31.0—32.4%
AP is depressed: 69.8—81.8%
•  Accelerator pedal position sensor
3D
V
AP is released: Approx. 1.6 V
AP is depressed: Approx. 3.9 V
APP2 (Accelerator pedal position)
%
AP is released: 20.2—21.4%
AP is depressed: 58.8—70.8%
•  Accelerator pedal position sensor
2A
V
AP is released: Approx. 1.0 V
AP is depressed: Approx. 3.4 V
ARPMDES (Target engine speed)
RPM
No load: 700 rpm
E/L operating: 700 rpm
P/S operating: 700 rpm
A/C ON: 750 rpm
•  The following PIDs:
―  IAT, RPM, MAP, ECT, MAF, TP, INGEAR, ACSW, PSP, ALTT V
•  CKP sensor
—
B+ (Battery positive voltage)*4
V
Ignition switch ON: B+
•  Main relay
•  Battery
2Y
BARO (Barometric pressure)
Pa
Ignition switch ON: Indicate the atmospheric pressure
•  BARO sensor
—
V
BAT
°C
Boost air temperature is displayed
•  MAP/boost air temperature sensor
1S
BAT_V
V
Boost air temperature 20 °C {68 °F}: 2.4—2.6 V
•  MAP/boost air temperature sensor
1S
Boost air temperature 30 °C {86 °F}: 1.7—1.9 V
BOO (Brake switch)
On/Off
Brake pedal depressed: On
Brake pedal released: Off
•  Brake switch
1K
3T
BPA (Brake pressure applied switch)*5
On/Off
Brake pedal depressed: On
Brake pedal released: Off
•  Brake switch
1K
3T
CATT11_DSD (Estimated catalytic converter temperature)
°C
°F
Indicate the estimated catalytic converter temperature
•  Perform applicable DTC troubleshooting.
—
CHRGLP (Generator warning light)
On/Off
Ignition switch ON: On
Idle: Off
•  Perform applicable DTC troubleshooting.
—
COLP (Refrigerant pressure switch (middle))
ON/OFF
Refrigerant pressure switch (middle) ON*2 at idle: ON
Refrigerant pressure switch (middle) OFF*3 at idle: OFF
•  Refrigerant pressure switch
1Q
CPP (Clutch pedal position)
On/Off
Clutch pedal depressed: On
Clutch pedal released: Off
•  CPP switch
1H
CPP/PNP (Shift lever position)
Drive/Neutral
Neutral position: Neutral
Others: Drive
•  Neutral switch
1W
DTCCNT (Number of DTC detected)
—
—
•  Perform applicable DTC troubleshooting.
—
ECT (Engine coolant temperature)
°C
°F
Ignition switch at ON position: Indicate the ECT
•  ECT sensor
1M
V
ECT 20 °C {68 °F}: 3.04—3.14 V
ECT 60 °C {140 °F}: 1.29—1.39 V
EQ_RAT11 (Equivalence ratio (lambda))
—
Idling after warm-up: Approx. 1
•  Perform applicable DTC troubleshooting.
2D
2G
2J
EQ_RAT11_DSD
(A/F sensor)
—
Idling after warm-up: Approx. 1
•  Perform applicable DTC troubleshooting.
2D
2G
2J
ETC_ACT (Electronic throttle control actual)
°
Indicate the desired TP by angle
•  Perform applicable DTC troubleshooting.
3J
3M
ETC_DSD (Electronic throttle control desired)
%
Indicate the desired TP by percent
•  The following PIDs:
―  APP1, APP2, ETC_ACT
•  TP sensor
3J
3M
°
Indicate the desired TP by angle
EVAPCP (Purge solenoid valve duty value)
%
Ignition switch ON: 0%
Idle: 0%
•  The following PIDs:
―  IAT, RPM, ECT, MAF, O2S11,BARO, INGEAR, VPWR
•  Purge solenoid valve
4T
FAN_DUTY
%
ECT less than 98 °C {208 °F}: 0%
ECT 100 °C {212 °F}: 30%
ECT 106 °C {223 °F}: 70%
ECT 110 °C {230 °F}: 100%
•  Fan control module
4A
FIA (Fuel injection amount)
mg/cylinder
Indicate the fuel injection amount
•  Fuel injector
•  Injector driver module
—
FP (Fuel pump relay)
On/Off
Idle: On
Cranking: On
•  The following PIDs:
―  RPM
•  Fuel pump relay
4Q
FP_Hi_PRES
On/Off
Spill valve control solenoid valve work: On
Spill valve control solenoid valve don’t work: Off
•  High pressure fuel pump
1A
1B
FUEL_PRES
Pa
Idle: Approx. 3 MPa
Load 60 % or more: Approx. 11.5 MPa
•  Fuel pressure sensor
1V
FUEL_PRES_V
V
Idle: Approx. 1.4 V
•  Fuel pressure sensor
1V
FUELSYS (Fuel system status)
OL/CL/
OL-Drive/
OL-Fault/
CL-Fault
Ignition switch ON: OL_Drive
Idle (after warm up): CL
•  The following PIDs:
―  IAT, MAF, TP, MAP, ECT, RPM, O2S11, O2S12, INGEAR, PSP, ACSW, VPWR, ALTT V
•  Fuel injector
—
GENVDSD (Generator voltage desired)
V
Idle: Approx. 13.83 V*1 (E/L not operating)
•  Perform applicable DTC troubleshooting.
—
HTR11 (A/F sensor heater)
On/Off
Idle (after warm up): OnÛOff
•  The following PIDs:
―  IAT, MAF, TP, ECT, RPM, ACSW
4AD
HTR12 (HO2S heater)
On/Off
Idle: On
Engine speed is above 4,000 rpm: Off
•  The following PIDs:
―  IAT, MAF, ECT, RPM, ACSW
4Z
IAT (Intake air temperature)
°C
°F
Ignition switch at ON position: Indicate the IAT
•  IAT sensor
2V
V
IAT 20 °C {68 °F}: 2.4—2.6V
IAT 30 °C {86 °F}: 1.7—1.9V
IMRC (Variable swirl solenoid valve)
On/Off
Engine speed is less than 3,250 rpm and ECT is less than 60 °C {140 °F}: On
Engine speed is 3,250 rpm or more, or ECT is 60 °C {140 °F} or more: Off
•  The following PIDs:
―  TP, ECT, RPM
•  Variable swirl solenoid valve
4K
INGEAR (Load/no load condition)
On/Off
CPP or CPP/PNP is On: Off
Others: On
•  Perform applicable DTC troubleshooting.
1H
1W
IVS (CTP condition)
Idle/
Off Idle
APP closed: Idle
Others: Off Idle
•  Perform applicable DTC troubleshooting.
3J
3M
KNOCKR (Knocking retard)
°
Ignition switch ON: 0 °
Idle: 0 °
•  Knock sensor
2P
2S
LOAD (Engine load)
%
Ignition switch ON: 0%
Idle (after warm up): 17.1—18.5%
Engine speed is 2,500 rpm: 14.2—15.2
•  MAF sensor
—
LONGFT1 (long term fuel trim)
%
Idle (after warm up):–14—14%
•  Perform applicable DTC troubleshooting.
—
MAF (Mass airflow)
g/sec
Ignition switch ON: Approx. 0 g/s
Idle (after warm up): 2.72—2.94 g/s
Engine speed is 2,500 rpm: 8.00—8.66
•  MAF sensor
1P
V
Ignition switch ON: Approx. 0.7 V
Idle (after warm up): 1.15—1.28 V
MAP (Manifold absolute pressure)
Pa
Ignition switch at ON position: Indicate the atmospheric pressure
•  MAP sensor
1J
V
Ignition switch ON
Manifold absolute pressure Approx. 102 kPa: Approx. 1.9 V
Idle
Manifold absolute pressure Approx. 30 kPa: Approx. 0.7 V
MIL (Malfunction indicator lamp)
On/Off
Ignition switch ON: On
Idle: Off
•  Perform applicable DTC troubleshooting.
—
MIL_DIS (Traveled distance since the MIL illuminated)
km
mile
No DTC: 0 km {0 mile}
DTC detected: Not 0 km {0 mile}
•  Perform applicable DTC troubleshooting.
—
NUMKEYS (Number of keys stored in module)
—
Indicate the number of keys stored in module
—
—
O2S11 (A/F sensor)
A
Idle (after warm up): –1.0—1.0 A
Deceleration (after warm up):
0.25 A or more
•  A/F sensor
2D
2G
2J
O2S12 (HO2S)
V
Idle (after warm up): 0—1.0 V
Acceleration (after warm up):
0.5—1.0 V
Deceleration (after warm up):
0—0.5 V
•  HO2S
1Y
PSP (Power steering pressure switch)
High/Low
Steering wheel in straight ahead position: Low
Others: High
•  PSP switch
1Z
RFCFLAG (Readness function code)
Learnt/ Not Learnt
Before running PCM adaptive memory procedure drive mode: Not Learnt
After running PCM adaptive memory procedure drive mode: Learnt
•  Run PCM adaptive memory procedure drive mode.
—
RO2FT1 (HO2S fuel trim)
—
•  Idle after warm-up: Approx. 0.2
•  The following PID
―  O2S12
1Y
RPM (Engine speed)
RPM
No load: 650—750 rpm
E/L operating: 650—750 rpm
P/S operating: 650—750 rpm
A/C ON: 700—800 rpm
•  CKP sensor
2C
SCCS (Speed control command switch)
V
Press ON/OFF: Approx. 0 V
Press CANCEL: Approx. 1.2 V
Press SET/COAST: Approx. 3.2 V
Press RES/ACCEL: Approx. 4.2 V
Others: Approx. 5.0 V
•  Cruise control switch
—
SEGRP (EGR valve (stepping motor) position)
—
Idle: 0 step
Cranking: 0—60 steps
•  The following PIDs:
―  MAF, TP, ECT, RPM, VSS
•  EGR valve
—
SEGRP DSD (Desired EGR valve (stepping motor) position)
%
Idle: 0%
•  The following PIDs:
―  MAF, TP, ECT, RPM, VSS
—
SELTESTDTC
(DTC of KOEO/KOER self-test)
—
—
•  Perform applicable DTC troubleshooting.
—
SHRTFT1 (Short term fuel trim [A/F sensor])
%
Idle (after warm up): Approx.–30—25%
•  Perform applicable DTC troubleshooting.
—
SHRTFT12 (Short term fuel trim)
%
Idle (after warm up): Approx.–30—25%
•  Perform applicable DTC troubleshooting.
—
SPARKADV (Ignition timing)
°(BTDC)
Idle: BTDC Approx. 8°
•  The following PIDs:
―  MAF, TP, ECT, RPM, INGEAR, PSP, ACSW, VPWR
•  Ignition timing
—
test (Test mode)
On/Off
—
—
—
TIRESIZE (Tire revolution per mile)
rev/mile
Indicate the tire circumference length
—
—
TP REL (Relative TP)
%
Ignition switch to the ON position
•  APP is released: Approx. 17%
Idle (after warm up)
•  Gradually depress the accelerator pedal while verifying that the value changes.
•  TP sensor
3J
3M
TP1 (TP sensor 1)
%
Ignition switch to the ON position
•  APP is released: Approx. 17%
Idle (after warm up)
•  Gradually depress the accelerator pedal while verifying that the value changes.
•  TP sensor
3M
V
Ignition switch to the ON position
•  APP is released: Approx. 0.85 V
Idle (after warm up)
•  Gradually depress the accelerator pedal while verifying that the voltage changes.
TP2 (TP sensor 2)
%
Ignition switch to the ON position
•  APP is released: Approx. 17%
Idle (after warm up)
•  Gradually depress the accelerator pedal while verifying that the value changes.
•  TP sensor
3J
V
Ignition switch to the ON position
•  APP is released: Approx. 4.11 V
Idle (after warm up)
•  Gradually depress the accelerator pedal while verifying that the voltage changes.
TPCT (Lowest closed throttle voltage)
V
Indicate the voltage of the closed TP sensor
•  TP sensor
3J
3M
VPWR (Module supply voltage)*5
V
Indicate the Module supply voltage.
Inspect battery.
—
VSS (Vehicle speed)
KPH
MPH
Indicate the vehicle speed
•  Perform applicable DTC troubleshooting.
—
VT ACT1 (Actual valve timing)
°
Idle: Approx. 0°
•  The following PIDs:
―  TP, ECT, RPM
•  OCV
—
VT DIFF1 (Difference between actual valve timing and target valve timing)
°
Idle: Approx. 0°
•  The following PIDs:
―  TP, ECT, RPM
•  OCV
4S
VT DUTY1
%
Idle: Approx. 11.5%
•  The following PIDs:
―  TP, ECT, RPM
•  OCV
4S
WGC
%
Racing with the accelerator pedal fully depressed: 100 %
•  Wastegate control solenoid valve
4H
Fully closed: 0 %

*1  :Calculated value; differs from terminal voltage
*2  :Refrigerant pressure switch (middle) turns off when the refrigerant pressure is 1.26—1.49 MPa {12.9—15.1 kgf/cm6, 184—214 psi}
*3  :Refrigerant pressure switch (middle) turns on when the refrigerant pressure is 1.69—1.84 MPa {17.3—18.7 kgf/cm2, 247—265 psi}
*4  :Australian specs.
*5  :European (L.H.D. U.K.) specs.

Without Using the SST

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.

1.  Measure the voltage at each terminal.

•  If any incorrect voltage is detected, inspect the related system(s), wiring harnesses and connector(s) referring to the Action column in the terminal voltage table.


Terminal voltage table (Reference)

am6zzw00007995

Terminal

Signal

Connected to

Test condition

Voltage (V)

Inspection item
1A
High pressure fuel pump control (+)
High pressure fuel pump
Ignition switch OFF
Approx. 10.0
•  High pressure fuel pump
•  Related wiring harness Related wiring harness
Ignition switch ON
Approx. 9.6
Idle
Approx. 9.4
1B
High pressure fuel pump control (–)
High pressure fuel pump
Ignition switch OFF
Approx. 9.9
•  High pressure fuel pump
•  Related wiring harness Related wiring harness
Ignition switch ON
Approx. 9.7
Idle
Approx. 9.1
1C
GND
Body ground
Under any condition
Below 1.0
•  Related wiring harness
1D
Variable swirl solenoid valve power supply
Main relay
Ignition switch OFF after 90s
Bellow 1.0
•  Main relay
•  Related wiring harness
Ignition switch ON
B+
1E
—
—
—
—
—
1F
—
—
—
—
—
1G
—
—
—
—
—
1H
Clutch operation
Clutch switch
Clutch pedal depressed
Below 1.0
•  Clutch switch
•  Related wiring harness
Clutch pedal released
B+
1I
MAF sensor GND
MAF/IAT sensor
Under any condition
Below 1.0
•  MAF/IAT sensor
•  Related wiring harness
1J
Manifold absolute pressure
MAP sensor
Ignition switch ON (Engine off) at sea level
Approx. 1.9
•  MAP sensor
•  Related wiring harness
Idle
Approx. 0.7
1K
Brake (No. 1)
Brake switch No. 1
Brake pedal depressed
B+
•  Brake switch
•  Related wiring harness
Brake pedal released
Below 1.0
1L
—
—
—
—
—
1M
ECT
ECT sensor
Ignition switch ON
ECT 20 °C
{68 °F}
3.04—3.14
•  ECT sensor
•  Related wiring harness
ECT 60 °C
{140 °F}
1.29—1.39
1N
Variable swirl shutter valve monitor
Variable swirl shutter valve switch
Engine speed is less than 3,250 rpm and ECT is less than 60°C {140 °F}
Below 1.0
•  Variable swirl shutter valve switch
•  Related wiring harness
Engine speed is 3,250 rpm or more, or ECT is 60°C {140 °F} or more
Approx. 5.0
1O
—
—
—
—
—
1P
MAF
MAF sensor
Ignition switch ON
Approx. 0.7
•  MAF sensor
•  Related wiring harness
Idle (after warm up)
1.15—1.28
1Q
A/C compressor load
Refrigerant pressure switch (middle)
A/C ON
Refrigerant pressure is above 1.52 MPa {15.5 kgf/cm2, 220 psi}
Below 1.0
•  Refrigerant pressure switch
•  Related wiring harness
Refrigerant pressure is below 1.23 MPa {12.5 kgf/cm2, 178 psi}
B+
1R
—
—
—
—
—
1S
Boost air temperature
MAP/Boost air temperature sensor
Ignition switch ON
IAT 20 °C
{68 °F}
2.4—2.6
•  Boost air temperature sensor
•  Related wiring harness
IAT 30 °C
{86 °F}
1.7—1.9
1T
—
—
—
—
—
1U
—
—
—
—
—
1V
Fuel pressure sensor
Fuel pressure sensor
Ignition switch OFF
Approx. 1.4
•  Fuel pressure sensor
•  Related wiring harness
Ignition switch ON
Approx. 1.5
Idle
Approx. 1.4
1W
Neutral position
Neutral switch
Shift lever is at neutral position
Below 1.0
•  Neutral switch
•  Related wiring harness
Shift lever is not at neutral position
B+
1X
—
—
—
—
—
1Y
HO2S
HO2S
Ignition switch ON
Below 1.0
•  HO2S
•  Related wiring harness
Voltage changes between 0 and 1 according to the amount of racing
1Z
PSP
PSP switch
Idle
Steering wheel at straight ahead position
B+
•  PSP switch
•  Power steering system
•  Related wiring harness
While turning steering wheel
Below 1.0
1AA
—
—
—
—
—
1AB
Generator output voltage
Generator
(terminal P)
•  Inspect using the wave profile.
•  Generator
•  Related wiring harness
1AC
A/C operation
Refrigerant pressure switch (high, low)
Idle
A/C switch and fan switch on
Below 1.0
•  Refrigerant pressure switch
•  Related wiring harness
A/C switch off
B+
1AD
Generator field coil control
Generator
(terminal D)
•  Inspect using the wave profile.
•  Following PIDs: IAT, ECT, RPM, VPWR, ALTT V.
•  Generator
•  Related wiring harness
2A
APP position (No. 2)
APP sensor No. 2
Ignition switch ON
APP is released
Approx. 1.0
•  APP sensor
•  Related wiring harness
APP is depressed
Approx. 3.4
2B
Fuel injector check signal
Injector driver module
•  Inspect using the wave profile.
•  Injector driver module
•  Related wiring harness
2C
CKP
CKP sensor
•  Inspect using the wave profile.
•  CKP sensor
•  Related wiring harness
2D
A/F sensor IP+
A/F sensor
Idle (after warm up)
Approx. 3.7—3.9
•  A/F sensor
•  Related wiring harness
When the engine speed is increased, the voltage increased.
2E
CMP
CMP sensor
•  Inspect using the wave profile.
•  CMP sensor
•  Related wiring harness
2F
—
—
—
—
—
2G
A/F sensor VSIP
A/F sensor
Idle (after warm up)
Approx. 4.0
•  A/F sensor
•  Related wiring harness
2H
Sensor GND
MAF/IAT sensor, A/F sensor, HO2S, APP sensor, CKP sensor, CMP sensor, Fuel pressure sensor, ECT sensor, MAP sensor, purge solenoid valve
Under any condition
Below 1.0
•  Related wiring harness
2I
—
—
—
—
—
2J
A/F sensor power supply
A/F sensor
Idle (after warm up)
Approx. 4.1
•  A/F sensor
•  Related wiring harness
2K
Constant voltage (Vref)
MAP sensor, fuel pressure sensor, APP sensor
Ignition switch ON
Approx. 5.0
•  Related wiring harness
2L
—
—
—
—
—
2M
A/F sensor calibration resistor
A/F sensor
Ignition switch OFF after 90s
Approx. 0
•  A/F sensor
•  Related wiring harness
Ignition switch ON
Approx. 1.7
2N
—
—
—
—
—
2O
—
—
—
—
—
2P
Knocking (–)
Knock sensor
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
•  Perform “On-Board Diagnostic Test”
•  Related wiring harness
2Q
Coil (Immobilizer system)
Coil
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
•  Coil
•  Related wiring harness
2R
CAN (low)
Instrument cluster, DSC HU/CM, injector control module
Because this terminal is for CAN, good/no good judgment by terminal voltage is not possible.
•  Related wiring harness
2S
Knocking (+)
Knock sensor
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
•  Perform “On-Board Diagnostic Test”
•  Related wiring harness
2T
Coil (Immobilizer system)
Coil
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
•  Coil
•  Related wiring harness
2U
CAN (high)
Instrument cluster, DSC HU/CM, injector control module
Because this terminal is for CAN, good/no good judgment by terminal voltage is not possible.
•  Related wiring harness
2V
IAT
MAF/IAT sensor
Ignition switch ON
IAT 20 °C
{68 °F}
2.4—2.6
•  IAT sensor
•  Related wiring harness
IAT 30 °C
{86 °F}
1.7—1.9
2W
Security light control
Instrument cluster (Security light)
Security light illuminate
Approx. 3.1
•  Related wiring harness
Others
B+
2X
Main relay control
Main relay
Ignition switch OFF after 90s
B+
•  Main relay
•  Related wiring harness
Ignition switch ON
Approx. 0.8
2Y
B+
Main relay
Ignition switch OFF
Below 1.0
•  Battery
•  Related wiring harness
Ignition switch ON
B+
2Z
Back-up power supply
Battery (positive terminal)
Under any condition
B+
•  Battery
•  Related wiring harness
2AA
—
—
—
—
—
2AB
GND
Body ground
Under any condition
Below 1.0
•  Related wiring harness
2AC
GND
Body ground
Under any condition
Below 1.0
•  Related wiring harness
2AD
Ignition switch (IG1)
Ignition switch
Ignition switch OFF
Below 1.0
•  Ignition switch
•  Related wiring harness
Ignition switch ON
B+
3A
APP sensor GND
APP sensor
Under any condition
Below 1.0
•  Related wiring harness
3B
Fuel injection (#1)
Fuel injector No.1
•  Inspect using the wave profile.
•  Fuel injector No.1
•  Related wiring harness
3C
Drive-by-wire-relay
Drive-by-wire-relay
Ignition switch OFF
Below 1.0
•  Drive-by-wire-relay
•  Related wiring harness
Ignition switch ON
Below 1.0
3D
APP position (No. 1)
APP sensor No. 1
Ignition switch ON
APP is released
Approx. 1.6
•  APP sensor
•  Related wiring harness
APP is depressed
Approx. 3.9
3E
Fuel injection (#2)
Fuel injector No.2
•  Inspect using the wave profile.
•  Fuel injector No.2
•  Related wiring harness
3F
—
—
—
—
—
3G
APP sensor 1 power
APP sensor
Under any condition
Approx. 5.0
•  APP sensor
•  Related wiring harness
3H
Fuel injection (#3)
Fuel injector No.3
•  Inspect using the wave profile.
•  Fuel injector No.3
•  Related wiring harness
3I
—
—
—
—
—
3J
TP position (No. 2)
TP sensor No. 2
Ignition switch to the ON position
APP is released
Approx. 4.11
•  TP sensor
•  Related wiring harness
Idle (after warm up)
Gradually depress the accelerator pedal while verifying that the voltage changes.
3K
Fuel injection (#4)
Fuel injector No.4
•  Inspect using the wave profile.
•  Fuel injector No.4
•  Related wiring harness
3L
—
—
—
—
—
3M
TP position (No. 1)
TP sensor No. 1
Ignition switch to the ON position
APP is released
Approx. 0.85
•  TP sensor
•  Related wiring harness
Idle (after warm up)
Gradually depress the accelerator pedal while verifying that the voltage changes.
3N
Injector control
Injector driver relay
Under any condition
Below 1.0
•  Related wiring harness
3O
—
—
—
—
—
3P
Constant voltage (vref)
TP sensor
Under any condition
Approx. 5.0
•  TP sensor
•  Related wiring harness
3Q
TP sensor GND
TP sensor
under any condition
Below 1.0
•  TP sensor
•  Related wiring harness
3R
—
—
—
—
—
3S
Cruise control
Cruise control switch
Ignition switch ON
Depressing ON/OFF
Approx. 0
•  Cruise control switch
•  Related wiring harness
Depressing CANCEL
Approx. 1.2
Depressing SET/COAST
Approx. 3.2
Depressing RES/ACCEL
Approx. 4.2
Others
Approx. 5.0
3T
Brake (No. 2)
Brake switch No. 2
Brake pedal depressed
B+
•  Brake switch
•  Related wiring harness
Brake pedal released
Below 1.0
3U
—
—
—
—
—
3V
—
—
—
—
—
3W
IGT1
Ignition coil (No.1 cylinders)
•  Inspect using the wave profile.
•  Ignition coil
•  Related wiring harness
3X
IGT2
Ignition coil (No.2 cylinders)
•  Inspect using the wave profile.
•  Ignition coil
•  Related wiring harness
3Y
—
—
—
—
—
3Z
IGT3
Ignition coil (No.3 cylinders)
•  Inspect using the wave profile.
•  Ignition coil
•  Related wiring harness
3AA
IGT4
Ignition coil (No.4 cylinders)
•  Inspect using the wave profile.
•  Ignition coil
•  Related wiring harness
4A
Fan control module
Control module unit
Fan not operate
Approx. 0.5
•  Fan control module
•  Related wiring harness
Operation
Approx. 2.5
4B
—
—
—
—
—
4C
—
—
—
—
—
4D
EGR valve #1 coil control
EGR valve
(terminal E)
Ignition switch ON
Below 1.0
•  EGR valve
•  Related wiring harness
Idle
Below 1.0
4E
—
—
—
—
—
4F
—
—
—
—
—
4G
EGR valve #3 coil control
EGR valve
(terminal A)
Ignition switch ON
B+
•  EGR valve
•  Related wiring harness
Ignition switch OFF after 90s
Below 1.0
4H
Wastegate control solenoid valve
Wastegate control solenoid valve
Idle
B+
•  Wastegate control solenoid valve
•  Related wiring harness
When the turbocharger works
Approx. 0.3
4I
Starter relay control
Starter relay
Cranking
Below 1.0
•  Perform “On-Board Diagnostic Test”
•  Related wiring harness
4J
EGR valve #4 coil control
EGR valve
(terminal B)
Ignition switch ON
B+
•  EGR valve
•  Related wiring harness
Ignition switch OFF after 90s
Below 1.0
4K
Variable swirl control
Variable swirl solenoid valve
Engine speed is less than 3,250 rpm and ECT is less than 60°C {140 °F}
Below 1.0
•  Variable swirl solenoid valve
•  Related wiring harness
Engine speed is 3,250 rpm or more, or ECT is 60°C {140 °F} or more
B+
4L
—
—
—
—
—
4M
EGR valve #6 coil control
EGR valve
(terminal F)
Ignition switch ON
B+
•  EGR valve
•  Related wiring harness
Idle after 2s
B+
4N
A/C
A/C relay
A/C operating
Below 1.0
•  A/C relay
•  Related wiring harness
A/C not operating
B+
4O
—
—
—
—
—
4P
Fuel pump speed control relay
Fuel pump speed control relay
Relay is OFF
B+
•  Fuel pump relay
•  Related wiring harness
Relay is ON
Below 1.0
4Q
Fuel pump relay
Fuel pump relay
Ignition switch ON after 1s
B+
•  Fuel pump speed control relay
•  Related wiring harness
Cranking
Below 1.0
Idle
Below 1.0
4R
—
—
—
—
—
4S
OCV control
OCV
•  Inspect using the wave profile.
•  OCV
•  Related wiring harness
4T
Purge solenoid valve
Purge solenoid valve
•  Inspect using the wave profile.
•  Purge solenoid valve
•  Related wiring harness
4U
—
—
—
—
—
4V
Throttle valve power
Drive-by-wire-relay
Ignition switch OFF after 90s
Below 1.0
•  Throttle relay
•  Related wiring harness
Ignition switch ON
B+
4W
—
—
—
—
—
4X
GND
GND
Under any condition
Below 1.0
•  Related wiring harness
4Y
Throttle actuator control (+)
Throttle body
Ignition switch OFF
B+
•  Throttle actuator
•  Related wiring harness
Ignition switch ON
Approx. 1.5
4Z
HO2S heater control
HO2S heater
Engine speed below 4,000 rpm
Approx. 0.2
•  HO2S heater
•  Related wiring harness
Engine speed above 4,000 rpm and TP angle above 50%
B+
4AA
—
—
—
—
—
4AB
Throttle actuator control (–)
Throttle body
Ignition switch ON
B+
•  Throttle actuator
•  Related wiring harness
Ignition switch OFF
Approx. 1.5
4AC
GND
Body ground
Under any condition
Below 1.0
•  Related wiring harness
4AD
A/F sensor heater control
A/F sensor heater
•  Inspect using the wave profile.
•  A/F sensor
•  Related wiring harness


Inspection Using An Oscilloscope (Reference)

Generator output voltage signal
am6zzw00007996
PCM terminals
•  1AB(+)—Body ground(–)
Oscilloscope setting
•  2 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
Generator field coil control signal
am6zzw00007997
PCM terminals
•  1AD(+)—Body ground(–)
Oscilloscope setting
•  0.5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
Fuel injector check signal
am6zzw00007998
PCM terminals
•  2B(+)—Body ground(–)
Oscilloscope setting
•  2 V/DIV (Y), 10 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
CKP sensor signal
am6zzw00007999
PCM terminals
•  2C(+)—Body ground(–)
Oscilloscope setting
•  2 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
CMP sensor signal
am6zzw00008000
PCM terminals
•  2E(+)—Body ground(–)
Oscilloscope setting
•  2 V/DIV (Y), 50 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
Fuel injection control
am6zzw00008001
PCM terminals
•  Fuel Injection No.1: 3B(+)—Body ground(–)
•  Fuel Injection No.2: 3E(+)—Body ground(–)
•  Fuel Injection No.3: 3H(+)—Body ground(–)
•  Fuel Injection No.4: 3K(+)—Body ground(–)
Oscilloscope setting
•  2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
IGT control signals
am6zzw00008002
PCM terminals
•  IGT1(No.1): 3W(+)—Body ground(–)
•  IGT2(No.2): 3X(+)—Body ground(–)
•  IGT3(No.3): 3Z(+)—Body ground(–)
•  IGT4(No.4): 3AA(+)—Body ground(–)
Oscilloscope setting
•  2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
OCV control signal
am6zzw00008003
PCM terminals
•  4S(+)—Body ground(–)
Oscilloscope setting
•  2.5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
Purge control signal
am6zzw00008004
PCM terminals
•  4T(+)—Body ground(–)
Oscilloscope setting
•  2 V/DIV (Y), 10 ms/DIV (X), DC range
Vehicle condition
•  Idle after warm up (no load, P/S off, A/C off)
A/F sensor heater control signal
am6zzw00008005
PCM terminals
•  4AD(+)—Body ground(–)
Oscilloscope setting
•  2.5 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
•  Idle after engine start (no load, P/S off, A/C off)