Nissan Murano. Manual - part 1076

PCS-66

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

BCM

BCM : Diagnosis Procedure

INFOID:0000000009722671

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

L

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-67

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

PUSH-BUTTON IGNITION SWITCH

Description

INFOID:0000000009722672

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.

Component Function Check

INFOID:0000000009722673

1.

CHECK FUNCTION

1.

Select “PUSH SW” in “Data Monitor” mode with CONSULT. 

2.

Check the push-button ignition switch signal under the following condition.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Go to  

PCS-67, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009722674

1.

CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector and IPDM E/R connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

1.

Disconnect BCM connector.

2.

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

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-98, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT 

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

Test item

Condition

Status

PUSH SW

Push-button ignition switch is pressed

ON

Push-button ignition switch is not pressed

OFF

(+)

(–)

Voltage (V)

(Approx.)

Push-button ignition switch

Connector

Terminal

M101

4

Ground

Battery voltage

BCM

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

M121

60

M101

4

Existed

BCM

Ground

Continuity

Connector

Terminal

M121

60

Not existed

PCS-68

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK PUSH-BUTTON IGNITION SWITCH

Refer to 

PCS-68, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace push-button ignition switch.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009722675

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.

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M101

1

Existed

Push-button ignition switch

Condition

Continuity

Terminal

1

4

Push-button ignition 

switch

Pressed

Existed

Not pressed

Not existed

PCS

PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR

PCS-69

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR

Description

INFOID:0000000009722676

The switch that changes the power supply position.
BCM maintains the power supply position status.
BCM changes the power supply position with the operation of the push-button ignition switch.

Component Function Check

INFOID:0000000009722677

1.

CHECK FUNCTION

Check push-button ignition switch (“ACC INDICATOR” and “IGNITION ON IND”) in Active Test Mode with
CONSULT.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to 

PCS-69, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009722678

1.

CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO-1

>> Check 10A fuse [No.9, located in fuse block (J/B)]

NO-2

>> Check harness for open or short between push-button ignition switch and fuse

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

1.

Disconnect BCM connector.

2.

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

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

Test item

Description

ACC INDICATOR
IGNITION ON IND

ON

Position indicator

 Illuminate

OFF

 Not illuminate

(+)

(–)

Voltage (V)

(Approx.)

Push-button ignition switch

Connector

Terminal

M101

8

Ground

Battery voltage

Indicator

BCM

 Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

ACC/ON

M119

15

M101

6

Existed

M122

93

Indicator

BCM

Ground

Continuity

Connector

Terminal

ACC/ON

M119

15

Not existed

M122

93