Nissan GT-R. Manual - part 235

PCS

POWER DISTRIBUTION SYSTEM

PCS-21

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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Component Parts Location

INFOID:0000000009163874

1.

BCM M118, M119, M121, M122, 
M123

2.

IPDM E/R E5, E6, F7

3.

Combination meter M53

4.

TCM B45

5.

Push button ignition switch M131

6.

Stop lamp switch E110

7.

Combination meter (Key warning 
lamp) M53

A.

Behind the instrument lower panel 
(RH)

B.

Engine room dash panel (RH)

C.

View with trunk front finisher re-
moved

D.

View with instrument lower panel 
(driver) removed

E.

Located on the conbination meter

JMMIA0023ZZ

PCS-22

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM

BCM : Diagnosis Procedure

INFOID:0000000009163902

1.

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connectors.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Signal name

Fuse and fusible link No.

Battery power supply

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10

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M118

1

Battery voltage

M119

11

BCM

Ground

Continuity

Connector

Terminal

M119

13

Existed

PCS

PUSH-BUTTON IGNITION SWITCH

PCS-23

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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PUSH-BUTTON IGNITION SWITCH

Description

INFOID:0000000009163903

BCM transmits the change in the power supply position with the push-button ignition switch to IPDM E/R via
the CAN communication line. IPDM E/R transmits the power supply position status via CAN communication
line to BCM.

Diagnosis Procedure

INFOID:0000000009163905

1.

CHECK PUSH-BUTTON IGNITION SWITCH OPERATION

Press push-button ignition switch and check if it turns ON.

Does ignition switch turn ON?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector and BCM connector.

3.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

1.

Disconnect IPDM E/R connector.

2.

Check continuity between IPDM E/R harness connector and BCM harness connector.

3.

Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-17, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

1.

Check continuity between BCM harness connector and push-button ignition switch harness connector.

2.

Check continuity between BCM harness connector and ground.

(+)

(–)

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M122

89

Ground

Battery voltage

IPDM E/R

BCM

Continuity

Connector

Terminal

Connector

Terminal

E5

28

M122

89

Existed

IPDM E/R

Ground

Continuity

Connector

Terminal

E5

28

Not existed

BCM

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

M122

89

M131

4

Existed

PCS-24

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK PUSH-BUTTON IGNITION GROUND CIRCUIT

Check continuity between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK PUSH-BUTTON IGNITION SWITCH

Check push-button ignition switch. Refer to 

PCS-24, "Component Inspection"

. 

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace push button ignition switch. Refer to 

PCS-31, "Removal and Installation"

.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009163906

1.

CHECK PUSH-BUTTON IGNITION SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector.

3.

Check continuity between push-button ignition switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace push-button ignition switch. Refer to 

PCS-31, "Removal and Installation"

.

BCM

Ground

Continuity

Connector

Terminal

M122

89

Not existed

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M131

1

Existed

Push-button ignition switch

Condition

Continuity

Terminal

1

4

Push-button ignition 

switch

Pressed

Existed

Not pressed

Not existed