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Post Type Selectors

PCM INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))]

PCM INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))]

SM2565866


id0140u0802500

Note
• Because the PCM uses a waterproof connector, the inspection for the voltage/wave pattern cannot be performed. The following values are for reference.



Terminal voltage table (Reference)

am3zzw00034777

—: Not applicable

Terminal

Signal

Connected to

Test condition

Voltage (V)

inspection item

1A *1
CAN_2H
CAN system related modules
Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
• Related wiring harness
1B *1
CAN_2L
CAN system related modules
Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
• Related wiring harness
1C *2
Constant voltage (Vref)
Neutral sensor
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
1D
Constant voltage (Vref)
Engine oil pressure sensor, engine oil temperature sensor, coolant control valve position sensor, refrigerant pressure sensor No.2
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
1E
Constant voltage (Vref)
CKP sensor, revolution sensor
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
1F
CKP
CKP sensor
(See CKP signal.)
• CKP sensor
• Related wiring harness
1G
1H* 2
Neutral position
Neutral sensor
Shift lever is at neutral position
Below 1.0
• Neutral sensor
• Related wiring harness
Shift lever is not at neutral position
Approx. 4.5
1I
Coolant control valve position
Coolant control valve position sensor
Because this terminal is for SENT signal, integrity determination by terminal voltage is not possible.
• Coolant control valve position sensor
• Related wiring harness
1J
Constant voltage (Vref)
MAP sensor
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
1K
Constant voltage (Vref)
Fuel pressure sensor
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
1L
Constant voltage (Vref)
TP sensor No.1, TP sensor No.2
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
1M
A/F
A/F sensor
Ignition switched ON (engine off)
Approx. 5.0
• A/F sensor
• Related wiring harness
Idle (after warm up)
Approx. 4.1
1N
GND
Sensor shield
Under any condition
Below 1.0
• Related wiring harness
1O
TP (No.1)
TP sensor No.1
Ignition switched ON (engine off)
Accelerator pedal released
Approx. 1.11
• TP sensor No.1
• Related wiring harness
Accelerator pedal depressed
Approx. 4.59
1P
1Q
IAT (No.2)
IAT sensor No.2
Ignition switched ON (engine off)
IAT 20 °C
{68 °F}
Approx. 3.57
• IAT sensor No.2
• Related wiring harness
IAT 40 °C
{104 °F}
Approx. 2.70
IAT 60 °C
{140 °F}
Approx. 1.87
1R
GND
TP sensor No.1, TP sensor No.2
Under any condition
Below 1.0
• Related wiring harness
1S
A/F
A/F sensor
Idle (after warm up): 0 mA
• A/F sensor
• Related wiring harness
1T
A/F
A/F sensor
Idle (after warm up)
Approx. 4.1
• A/F sensor
• Related wiring harness
1U
GND
Sensor shield
Under any condition
Below 1.0
• Related wiring harness
1V
TP (No.2)
TP sensor No.2
Ignition switched ON (engine off)
Accelerator pedal released
Approx. 3.92
• TP sensor No.2
• Related wiring harness
Accelerator pedal depressed
Below 1.0
1W
Fuel pressure
Fuel pressure sensor
Ignition switched ON (engine off)
Approx. 0.57
• Fuel pressure sensor
• Related wiring harness
Idle (after warm up)
Approx. 1.51
1X
MAP
MAP sensor
Ignition switched ON (engine off)
Approx. 4.07
• MAP sensor
• Related wiring harness
Idle (after warm up)
Approx. 1.37
Racing
(Engine speed: 2,000 rpm)
Approx. 0.92
1Y
Knocking (+)
KS
Ignition switched ON (engine off) (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter)
Approx. 2.45
• KS
• Related wiring harness
1Z
Knocking (–)
KS
Ignition switched ON (engine off) (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter)
Below 1.0
• KS
• Related wiring harness
1AA
1AB
GND
Neutral sensor *2, ECT sensor No.1, ECT sensor No.2, engine oil pressure sensor, engine oil temperature sensor, engine oil level sensor
Under any condition
Below 1.0
• Related wiring harness
1AC *2
Revolution
Revolution sensor
• Revolution sensor
• Related wiring harness
1AD
Electric variable valve timing driver (diagnostic)
Electric variable valve timing driver
• Electric variable valve timing driver
• Related wiring harness
1AE
Ion (No.2)
Ion sensor No.2
Idle (after warm up)
Approx. 4.4
• Ion sensor No.2
• Related wiring harness
1AF
Ion (No.4)
Ion sensor No.4
Idle (after warm up)
Approx. 4.4
• Ion sensor No.4
• Related wiring harness
1AG
Generator output voltage
Generator
• Generator
• Related wiring harness
1AH
ECT
ECT sensor No.1
Ignition switched ON (engine off)
ECT 20 °C
{68 °F}
Approx. 3.10
• ECT sensor No.1
• Related wiring harness
ECT 40 °C
{104 °F}
Approx. 2.16
ECT 60 °C
{140 °F}
Approx. 1.40
ECT 80 °C
{176 °F}
Approx. 0.87
ECT 100 °C
{212 °F}
Approx. 0.54
1AI
GND
Intake CMP sensor, exhaust CMP sensor
Under any condition
Below 1.0
• Related wiring harness
1AJ
1AK
Ion (No.3)
Ion sensor No.3
Idle (after warm up)
Approx. 4.4
• Ion sensor No.3
• Related wiring harness
1AL
Ion (No.1)
Ion sensor No.1
Idle (after warm up)
Approx. 4.4
• Ion sensor No.1
• Related wiring harness
1AM
ECT
ECT sensor No.2
Ignition switched ON (engine off)
ECT 20 °C
{68 °F}
Approx. 3.10
• ECT sensor No.2
• Related wiring harness
ECT 40 °C
{104 °F}
Approx. 2.16
ECT 60 °C
{140 °F}
Approx. 1.40
ECT 80 °C
{176 °F}
Approx. 0.87
ECT 100 °C
{212 °F}
Approx. 0.54
1AN
Engine oil temperature
Engine oil temperature sensor
Ignition switched ON (engine off)
Approx. 3.21
• Engine oil temperature sensor
• Related wiring harness
1AO
1AP
GND
CKP sensor
Under any condition
Below 1.0
• Related wiring harness
1AQ
1AR
1AS
Engine oil pressure
Engine oil pressure sensor
Ignition switched ON (engine off)
Below 1.0
• Engine oil pressure sensor
• Related wiring harness
Idle (after warm up)
1.07—1.47
1AT
GND
Sensor shield
Under any condition
Below 1.0
• Related wiring harness
1AU
Refrigerant pressure (No.2)
Refrigerant pressure sensor No.2
Refrigerant pressure: 0.17 MPa {1.7 kgf/cm 2, 25 psi}
Approx. 0.36
• Refrigerant pressure sensor No.2
• Related wiring harness
Refrigerant pressure: 2.66 MPa {27.1 kgf/cm 2, 3.86 psi}
Approx. 3.88
1AV
1AW
Purge control
Purge solenoid valve
• Purge solenoid valve
• Related wiring harness
1AX
1AY
1AZ *2
Back up light
Back up light switch
Shift lever is at R position
Below 1.0
• Back up light switch
• Related wiring harness
Shift lever is not at R position
B+
1BA
1BB
1BC
IGT1
Ignition coil No.1
• Ignition coil No.1
• Related wiring harness
1BD
1BE
1BF
1BG
GND
Coolant control valve position sensor
Under any condition
Below 1.0
• Related wiring harness
1BH
GND
MAP sensor, IAT sensor No.2, fuel pressure sensor, refrigerant pressure sensor No.2
Under any condition
Below 1.0
• Related wiring harness
1BI
IGT2
Ignition coil No.2
• Ignition coil No.2
• Related wiring harness
1BJ
1BK
1BL
1BM
Electric variable valve timing motor (rotation pulse)
Electric variable valve timing motor
• Electric variable valve timing motor
• Related wiring harness
1BN
Electric variable valve timing motor (rotation direction)
Electric variable valve timing motor
• Electric variable valve timing motor
• Related wiring harness
1BO
IGT3
Ignition coil No.3
• Ignition coil No.3
• Related wiring harness
1BP
Generator field coil control
Generator
• Generator
• Related wiring harness
1BQ
1BR
GND
Sensor shield
Under any condition
Below 1.0
• Related wiring harness
1BS
1BT
Intake CMP
Intake CMP sensor
• Intake CMP sensor
• Related wiring harness
1BU
IGT4
Ignition coil No.4
• Ignition coil No.4
• Related wiring harness
1BV
Electric variable valve timing control
Electric variable valve timing driver
• Electric variable valve timing driver
• Related wiring harness
1BW
1BX
1BY
1BZ
Exhaust CMP
Exhaust CMP sensor
• Exhaust CMP sensor
• Related wiring harness
1CA
Compressor valve
Compressor valve
Ignition switched ON (engine off)
Approx. 12.22
• Compressor valve
• Related wiring harness
Idle (A/C Off)
Approx. 14.42
Idle (A/C On)
4.55—5.3
1CB
A/F sensor heater control
A/F sensor heater
• A/F sensor heater
• Related wiring harness
1CC
1CD
1CE
1CF
1CG
1CH
1CI
1CJ
1CK
Engine oil control
Engine oil solenoid valve
• Engine oil solenoid valve
• Related wiring harness
1CL
1CM
1CN
1CO
Hydraulic variable valve timing control
OCV
• OCV
• Related wiring harness
1CP
1CQ
Drive-by-wire control (+)
Throttle valve actuator
• Throttle valve actuator
• Related wiring harness
1CR
Drive-by-wire control (–)
Throttle valve actuator
Idle (after warm up)
Because the drive-by-wire control (-) terminal value varies depending on the vehicle, examination using only the ICQ terminal is not possible. When performing the inspection, perform it together with the ICR terminal.
• Type A
― B+
• Type B
― Approx. 0
• Throttle valve actuator
• Related wiring harness
1CS
1CT
1CU
Fuel injection control (+)
Fuel injector No.3
• Fuel injector No.3
• Related wiring harness
1CV
Fuel injection control (–)
Fuel injector No.3
• Fuel injector No.3
• Related wiring harness
1CW
Coolant control valve control (+)
Coolant control valve
Ignition switched ON (engine off)
B+
• Coolant control valve
• Related wiring harness
1CX
Coolant control valve control (–)
Coolant control valve
Ignition switched ON (engine off)
B+
• Coolant control valve
• Related wiring harness
1CY
Fuel injection control (+)
Fuel injector No.2
• Fuel injector No.2
• Related wiring harness
1CZ
Fuel injection control (–)
Fuel injector No.2
• Fuel injector No.2
• Related wiring harness
1DA
1DB
1DC
Fuel injection control (+)
Fuel injector No.4
• Fuel injector No.4
• Related wiring harness
1DD
Fuel injection control (–)
Fuel injector No.4
• Fuel injector No.4
• Related wiring harness
1DE
1DF
1DG
Fuel injection control (+)
Fuel injector No.1
• Fuel injector No.1
• Related wiring harness
1DH
Fuel injection control (–)
Fuel injector No.1
• Fuel injector No.1
• Related wiring harness
1DI
High pressure fuel pump control (+)
High pressure fuel pump
• High pressure fuel pump
• Related wiring harness
1DJ
High pressure fuel pump control (–)
High pressure fuel pump
• High pressure fuel pump
• Related wiring harness
2A
Battery voltage
Battery
Ignition switched ON (engine off)
B+
• Related wiring harness
2B
Main relay control
Main relay
Ignition switched ON (engine off)
Below 1.0
• Main relay
• Related wiring harness
2C
2D
Fuel pump control
Fuel pump control module
• Fuel pump control module
• Related wiring harness
2E
2F
Ignition (IG1)
IG1 relay No.1
Ignition switched ON (engine off)
B+
• IG1 relay No.1
• Related wiring harness
2G
2H
Starter cut-off control
Starter relay, BCM
Ignition switched ON (engine off)
MTX
• Clutch pedal released
ATX
• Selector lever position is not P or N position
B+
• Starter relay
• BCM
• Related wiring harness
MTX
• Clutch pedal depressed
ATX
• Selector lever position is P or N position
Below 1.0
2I
2J
2K
2L
2M
CAN_3H
CAN system related modules
Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
• Related wiring harness
2N
CAN_3L
CAN system related modules
Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
• Related wiring harness
2O
2P
Brake (No.2)
Brake switch (No.2 signal)
Brake pedal released
Below 1.0
• Brake switch (No.2 signal)
• Related wiring harness
Brake pedal depressed
B+
2Q
2R
Ambient temperature
Ambient temperature sensor
Ignition switched ON (engine off)
AAT 20 °C
{68 °F}
Approx. 2.70
• Ambient temperature sensor
• Related wiring harness
AAT 30 °C
{104 °F}
Approx. 1.80
2S
CAN_H
CAN system related modules
Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
• Related wiring harness
2T
CAN_L
CAN system related modules
Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
• Related wiring harness
2U
2V
2W
2X
2Y
Engine oil level sensor (LIN)
Engine oil level sensor
Because this terminal is for LIN, good/no good judgment by terminal voltage is not possible.
• Related wiring harness
2Z
2AA
2AB
2AC
2AD
2AE
2AF
A/C cut-off control
A/C relay
A/C relay OFF
B+
• A/C relay
• Related wiring harness
A/C relay ON
Below 1.0
2AG
2AH
2AI
GND
MAF sensor, IAT sensor No.1, refrigerant pressure sensor No.1, ambient temperature sensor, clutch stroke sensor *2, fuel tank pressure sensor *3
Under any condition
Below 1.0
• Related wiring harness
2AJ *3
Fuel tank pressure
Fuel tank pressure sensor
Ignition switched ON (engine off)
Approx. 2.6
• Fuel tank pressure sensor
• Related wiring harness
2AK
2AL *3
CV solenoid control
CV solenoid valve
Ignition switched ON (engine off)
B+
• CV solenoid valve
• Related wiring harness
Idle (CV solenoid valve not operating)
B+
Idle (CV solenoid valve operating)
Below 1.0
2AM
Cooling fan control
Cooling fan relay No.1
Cooling fan operating
Below 1.0
• Cooling fan relay No.2
• Related wiring harness
Cooling fan not operating
B+
2AN
2AO
Constant voltage (Vref)
APP sensor No.2
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
2AP *2
Clutch stroke sensor
Clutch stroke sensor
Clutch pedal depressed
Below 1.0
• Clutch stroke sensor
• Related wiring harness
Clutch pedal released
Approx. 4.5
2AQ
2AR
2AS
Cooling fan control
Cooling fan relay No.2
Cooling fan operating
Below 1.0
• Cooling fan relay No.2
• Related wiring harness
Cooling fan not operating
B+
2AT
Constant voltage (Vref)
MAF sensor, IAT sensor No.1
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
2AU
Constant voltage (Vref)
Clutch stroke sensor *2, fuel tank pressure sensor *3, exhaust shutter valve position sensor
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
2AV
Refrigerant pressure
Refrigerant pressure sensor No.1
Refrigerant pressure: 0.17 MPa {1.7 kgf/cm 2, 25 psi}
Approx. 0.36
• Refrigerant pressure sensor No.1
• Related wiring harness
Refrigerant pressure: 2.66 MPa {27.1 kgf/cm 2, 386 psi}
Approx. 3.88
2AW
Fuel pump control
Fuel pump relay
Ignition switched ON (engine off)
B+
• Fuel pump relay
• Related wiring harness
Idle (after warm up)
Below 1.0
2AX
Fuel pump control module (diagnostic)
Fuel pump control module
• Fuel pump control module
• Related wiring harness
2AY
2AZ
Constant voltage (Vref)
Refrigerant pressure sensor No.1
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
2BA
Constant voltage (Vref)
APP sensor No.1
Ignition switched ON (engine off)
Approx. 5.0
• Related wiring harness
2BB
APP (No.2)
APP sensor No.2
Ignition switched ON (engine off)
Accelerator pedal released
Approx. 0.38
• APP sensor No.2
• Related wiring harness
Accelerator pedal depressed
Approx. 2.05
2BC
2BD
Selector lever position
TCM
Selector lever position is not P or N position
B+
• TCM
• Related wiring harness
Selector lever position is P or N position
Below 1.0
2BE
Intake air
MAF sensor, IAT sensor No.1
Because this terminal is for SENT signal, integrity determination by terminal voltage is not possible.
• MAF sensor, IAT sensor No.1
• Related wiring harness
2BF
2BG
GND
APP sensor No.2
Under any condition
Below 1.0
• Related wiring harness
2BH
GND
APP sensor No.1
Under any condition
Below 1.0
• Related wiring harness
2BI
2BJ
HO2S heater control
HO2S heater
• HO2S heater
• Related wiring harness
2BK
HO2S (+)
HO2S
Idle (after warm up)
Approx. 2.15
• HO2S
• Related wiring harness
2BL
HO2S (–)
HO2S
Idle (after warm up)
Approx. 2.05
• HO2S
• Related wiring harness
2BM
GND
Sensor shield
Under any condition
Below 1.0
• Related wiring harness
2BN
APP (No.1)
APP sensor No.1
Ignition switched ON (engine off)
Accelerator pedal released
Approx. 0.75
• APP sensor No.1
• Related wiring harness
Accelerator pedal depressed
Approx. 4.1
2BO
Main power supply
Main relay
Ignition switched ON (engine off)
B+
• Main relay
• Related wiring harness
2BP
2BQ
GND
GND
Under any condition
Below 1.0
• Related wiring harness
2BR
Main power supply
Main relay
Ignition switched ON (engine off)
B+
• Main relay
• Related wiring harness
2BS
2BT
GND
GND
Under any condition
Below 1.0
• Related wiring harness
*1 :ATX
*2 :MTX
*3 :U.S.A. and Canada specs.



Inspection Using An Oscilloscope (Reference)


Revolution sensor signal

Wave pattern (reference)

am3zzw00024010
PCM terminals
• 1AC(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Idle (after warm up)
am3zzw00024011
PCM terminals
• 1AC(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Racing (Engine speed: 2,000 rpm)


Electric variable valve timing motor (rotation direction) signal

adejjw00007909
PCM terminals
• 1BN(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Idle (after warm up)


Electric variable valve timing motor (rotation pulse) signal

adejjw00007910
PCM terminals
• 1BM(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Idle (after warm up)


Exhaust CMP signal

adejjw00007911
PCM terminals
• 1BZ(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle (after warm up)


Intake CMP signal

adejjw00007911
PCM terminals
• 1BT(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle (after warm up)


CKP signal

adejjw00007912
PCM terminals
• 1F(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
• Idle (after warm up)


Electric variable valve timing driver (diagnostic) signal

adejjw00007913
PCM terminals
• 1AD(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 100 ms/DIV (X), DC range
Vehicle condition
• Idle (after warm up)


Generator output voltage

adejjw00007914
PCM terminals
• 1AG+)—body ground(–)
Oscilloscope setting
• 5 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


Purge control

adejjw00007915
PCM terminals
• 1AW(+)—body ground(–)
Oscilloscope setting
• 10 V/DIV (Y), 50 ms/DIV (X), DC range
Vehicle condition
• Racing (Engine speed: 2,000 rpm)


IGT1, IGT2, IGT3, IGT4 control

adejjw00007916
PCM terminals
• IGT1 (ignition coil No.1): 1BC(+)—body ground(–)
• IGT2 (ignition coil No.2): 1BI(+)—body ground(–)
• IGT3 (ignition coil No.3): 1BO(+)—body ground(–)
• IGT4 (ignition coil No.4): 1BU(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


Hydraulic variable valve timing control signal

adejjw00007917
PCM terminals
• 1CO(+)—body ground(–)
Oscilloscope setting
• 5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
• Racing (Engine speed: 2,000 rpm)


Engine oil control signal

adejjw00002085
PCM terminals
• 1CK(+)—body ground(–)
Oscilloscope setting
• 5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


Electric variable valve timing control signal

adejjw00007919
PCM terminals
• 1BV+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


Generator field coil control signal

adejjw00007920
PCM terminals
• 1BP(+)—body ground(–)
Oscilloscope setting
• 1 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


A/F sensor heater control signal

adejjw00002081
PCM terminals
• 1CB(+)—body ground(–)
Oscilloscope setting
• 5 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


Drive-by-wire control (+) signal

Note
• The wave pattern is either type A or B depending on the PCM specifications.

Type A

am3zzw00012795
PCM terminals
• 1CQ(+)—1CR(–)
Oscilloscope setting
• 5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up

Type B

ac3jjw00004192
PCM terminals
• 1CQ(+)—1CR(–)
Oscilloscope setting
• 5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


Fuel injection control (-) signal

adejjw00002082
PCM terminals
• Fuel Injection No.1: 1DH(+)—body ground(–)
• Fuel Injection No.2: 1CZ(+)—body ground(–)
• Fuel Injection No.3: 1CV(+)—body ground(–)
• Fuel Injection No.4: 1DD(+)—body ground(–)
Oscilloscope setting
• 50 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


Fuel injection control (+) signal

adejjw00002083
PCM terminals
• Fuel Injection No.1: 1DG(+)—body ground(–)
• Fuel Injection No.2: 1CY(+)—body ground(–)
• Fuel Injection No.3: 1CU(+)—body ground(–)
• Fuel Injection No.4: 1DC(+)—body ground(–)
Oscilloscope setting
• 50 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


High pressure fuel pump control (+) signal

adejjw00007925
PCM terminals
• 1DI(+)—body ground(–)
Oscilloscope setting
• 10 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


High pressure fuel pump control (-) signal

ac5uuw00004803
PCM terminals
• 1DJ(+)—body ground(–)
Oscilloscope setting
• 10 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


HO2S heater control signal

adejjw00007927
PCM terminals
• 2BJ(+)—body ground(–)
Oscilloscope setting
• 5 V/DIV (Y), 50 ms/DIV (X), DC range
Vehicle condition
• Idle (immediately after starting engine)


Fuel pump control signal

ac5jjw00009364
PCM terminals
• 2D(+)—body ground(–)
Oscilloscope setting
• 5 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up


Fuel pump control module (diagnostic) signal

adejjw00002084
PCM terminals
• 2AX(+)—body ground(–)
Oscilloscope setting
• 2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up