Nissan Murano Z51 (2008 year). Manual - part 280

PCS

B260A IGNITION RELAY

PCS-51

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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B260A IGNITION RELAY

Description

INFOID:0000000003375871

BCM turns ON the following relays to ignition power supply to each ECU when the ignition switch is turned
ON.
• Ignition relay (inside fuse block)
• Ignition relay (inside IPDM E/R)
• Blower relay
BCM checks any ignition relay ON request for consistency with the actual ignition relay operation status.

DTC Logic

INFOID:0000000003375872

DTC DETECTION LOGIC

NOTE:
• If DTC B260A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

PCS-47, "BCM : DTC Logic"

.

• If DTC B260A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

PCS-48, "BCM : DTC Logic"

.

• If DTC B260A is displayed with DTC B261A, first perform the trouble diagnosis for DTC B261A. Refer to

PCS-63, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions, and wait for at least 2 seconds.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-51, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375873

1.

CHECK DTC WITH IPDM E/R

Check “Self diagnostic result” with CONSULT-III. Refer to 

PCS-32, "DTC Index"

.

Is DTC detected?

YES

>> Repair or replace the malfunctioning parts.

NO

>> GO TO 2.

2.

CHECK IGNITION RELAY INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check voltage between BCM harness connector and ground.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B260A

IGNITION RELAY

BCM detects a difference of signal for 2 second or 
more between the following information.
• Ignition relay (IPDM E/R) operation request
• Ignition relay feedback from IPDM E/R (CAN).

• Harness or connectors

(Ignition relay operation circuit is 
open or shorted.)

• BCM
• IPDM  E/R

(+)

(–)

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M121

47

Ground

Battery voltage

Revision: 2008 October

2009 Murano

PCS-52

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B260A IGNITION RELAY

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

NO

>> GO TO 3.

3.

CHECK IGNITION RELAY (IPDM E/R) CIRCUIT

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-34, "Removal and Installation"

.

NO

>> Repair or replace harness.

IPDM E/R

BCM

Continuity

Connector

Terminal

Connector

Terminal

E10

27

M121

47

Existed

IPDM E/R

Ground

Continuity

Connector

Terminal

E10

27

Not existed

Revision: 2008 October

2009 Murano

PCS

B2614 ACC RELAY

PCS-53

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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B2614 ACC RELAY

Description

INFOID:0000000003375877

BCM controls the various electrical components and simultaneously supplies power according to the power
supply position.
BCM checks the power supply position internally.

DTC Logic

INFOID:0000000003375878

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the power supply position to ACC under the following conditions, and wait for at least 1 second.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-53, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375879

1.

CHECK ACCESSORY RELAY POWER SUPPLY-1

1.

Turn ignition switch OFF.

2.

Disconnect accessory relay.

3.

Check voltage between accessory relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK ACCESSORY RELAY POWER SUPPLY-2

1.

Disconnect fuse block (J/B) connector.

2.

Check voltage between fuse block (J/B) harness connector and ground.

Is the inspection result normal?

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2614

ACC relay

An immediate operation of ACC relay is requested 
by BCM, but there is no response for more than 1 
second.

• Harness or connectors

(ACC relay circuit is open or short-
ed)

• ACC relay

(+)

(–)

Condition

Voltage (V)

(Approx.)

Accessory relay

Terminal

1

Ground

Ignition switch

OFF

0

ACC

Battery voltage

(+)

(–)

Condition

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

M2

5B

Ground

Ignition switch

OFF

0

ACC

Battery voltage

Revision: 2008 October

2009 Murano

PCS-54

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2614 ACC RELAY

YES

>> Replace fuse block (J/B).

NO

>> GO TO 3.

3.

CHECK ACCESSORY RELAY POWER SUPPLY CIRCUIT-1

1.

Disconnect BCM connector.

2.

Check continuity between fuse block (J/B) harness connector and BCM harness connector.

3.

Check continuity between fuse block (J/B) harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

PCS-129, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK ACCESSORY RELAY GROUND CIRCUIT

Check continuity between accessory relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair accessory relay ground circuit.

5.

CHECK ACCESSORY RELAY POWER SUPPLY CIRCUIT-2

1.

Connect accessory relay.

2.

Turn ignition switch ACC.

3.

Check voltage between accessory relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

CHECK ACCESSORY RELAY

Refer to 

PCS-55, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace fuse block (J/B).

NO

>> Replace accessory relay. Refer to 

PG-101, "Fuse, Connector and Terminal Arrangement"

.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Fuse block (J/B)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M2

5B

M122

95

Existed

Fuse block (J/B)

Ground

Continuity

Connector

Terminal

M2

5B

Not existed

Accessory relay

Ground

Continuity

Terminal

2

Existed

(+)

(–)

Voltage (V)

(Approx.)

Accessory relay

Terminal

5

Ground

Battery voltage

Revision: 2008 October

2009 Murano

PCS

B2614 ACC RELAY

PCS-55

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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Component Inspection

INFOID:0000000003375880

1.

CHECK ACCESSORY RELAY

1.

Turn ignition switch OFF.

2.

Remove accessory relay.

3.

Check the continuity between accessory relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace accessory relay. Refer to 

PG-101, "Fuse, Con-

nector and Terminal Arrangement"

.

Terminals

Condition

Continuity

3 and 5

12 V direct current supply between terminals 1 and 2

Existed

No current supply

Not existed

PBIB0098E

Revision: 2008 October

2009 Murano

PCS-56

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2615 BLOWER RELAY CIRCUIT

B2615 BLOWER RELAY CIRCUIT

Description

INFOID:0000000003375881

BCM controls the various electrical components and simultaneously supplies power according to the power
supply position.
BCM checks the power supply position internally.

DTC Logic

INFOID:0000000003375882

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions, and wait for at least 1 second.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self diagnostic result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-56, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375883

1.

CHECK BLOWER RELAY POWER SUPPLY-1

1.

Turn ignition switch OFF.

2.

Disconnect blower relay.

3.

Check voltage between blower relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK BLOWER RELAY POWER SUPPLY-2

1.

Disconnect fuse block (J/B) connector.

2.

Check voltage between fuse block (J/B) harness connector and ground.

Is the inspection result normal?

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2615

Blower relay circuit

BCM detects a difference of signal for 1 second or 
more between the following information.
• Blower relay ON/OFF request 
• Blower relay feedback

• Harness or connectors 

(Blower relay circuit is open or 
shorted)

• Blower relay

(+)

(–)

Condition

Voltage (V)

(Approx.)

Blower relay

Terminal

1

Ground

Ignition switch

OFF or ACC

0

ON

Battery voltage

(+)

(–)

Condition

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

E103

6F

Ground

Ignition switch

OFF or ACC

0

ON

Battery voltage

Revision: 2008 October

2009 Murano

PCS

B2615 BLOWER RELAY CIRCUIT

PCS-57

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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YES

>> Replace fuse block (J/B).

NO

>> GO TO 3.

3.

CHECK BLOWER RELAY POWER SUPPLY CIRCUIT-1

1.

Disconnect BCM connector.

2.

Check continuity between fuse block (J/B) harness connector and BCM harness connector.

3.

Check continuity between fuse block (J/B) harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK BLOWER RELAY GROUND CIRCUIT

Check continuity between blower relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair blower relay ground circuit.

5.

CHECK BLOWER RELAY POWER SUPPLY CIRCUIT-2

1.

Connect blower relay.

2.

Turn ignition switch ON.

3.

Check voltage between blower relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

CHECK BLOWER RELAY

Refer to 

PCS-58, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace fuse block (J/B).

NO

>> Replace blower relay. Refer to 

PG-101, "Fuse, Connector and Terminal Arrangement"

.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Fuse block (J/B)

BCM

Continuity

Connector

Terminal

Connector

Terminal

E103

6F

M122

102

Existed

Fuse block (J/B)

Ground

Continuity

Connector

Terminal

E103

6F

Not existed

Blower relay

Ground

Continuity

Terminal

2

Existed

(+)

(–)

Voltage (V)

(Approx.)

Blower relay

Terminal

5

Ground

Battery voltage

Revision: 2008 October

2009 Murano

PCS-58

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2615 BLOWER RELAY CIRCUIT

Component Inspection

INFOID:0000000003375884

1.

CHECK BLOWER RELAY

1.

Turn ignition switch OFF.

2.

Remove blower relay.

3.

Check the continuity between blower relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace blower relay. Refer to 

PG-101, "Fuse, Connec-

tor and Terminal Arrangement"

.

Terminals

Condition

Continuity

3 and 5

12 V direct current supply between terminals 1 and 2

Existed

No current supply

Not existed

PBIB0098E

Revision: 2008 October

2009 Murano

PCS

B2616 IGNITION RELAY CIRCUIT

PCS-59

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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B2616 IGNITION RELAY CIRCUIT

Description

INFOID:0000000003375885

BCM controls the various electrical components and simultaneously supplies power according to the power
supply position.
BCM checks the power supply position internally.

DTC Logic

INFOID:0000000003375886

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions, and wait for at least 1 second.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-59, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375887

1.

CHECK IGNITION RELAY POWER SUPPLY-1

1.

Turn ignition switch OFF.

2.

Disconnect ignition relay.

3.

Check voltage between ignition relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK IGNITION RELAY POWER SUPPLY-2

1.

Disconnect fuse block (J/B) connector.

2.

Check voltage between fuse block (J/B) harness connector and ground.

Is the inspection result normal?

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2616

Ignition relay circuit

An immediate operation of ignition relay (fuse 
block) is requested by BCM, but there is no re-
sponse for more than 1 second

• Harness or connectors 

(Ignition relay circuit is open or 
shorted)

• Ignition relay (Fuse block)

(+)

(–)

Condition

Voltage (V)

(Approx.)

Ignition relay

Terminal

1

Ground

Ignition switch

OFF or ACC

0

ON

Battery voltage

(+)

(–)

Condition

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

M3

6C

Ground

Ignition switch

OFF or ACC

0

ON

Battery voltage

Revision: 2008 October

2009 Murano

PCS-60

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2616 IGNITION RELAY CIRCUIT

YES

>> Replace fuse block (J/B).

NO

>> GO TO 3.

3.

CHECK IGNITION RELAY POWER SUPPLY CIRCUIT-1

1.

Disconnect BCM connector.

2.

Check continuity between fuse block (J/B) harness connector and BCM harness connector.

3.

Check continuity between fuse block (J/B) harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-96, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK IGNITION RELAY GROUND CIRCUIT

Check continuity between ignition relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair ignition relay ground circuit.

5.

CHECK IGNITION RELAY POWER SUPPLY CIRCUIT-2

1.

Connect ignition relay.

2.

Turn ignition switch ON.

3.

Check voltage between ignition relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

CHECK IGNITION RELAY

Refer to 

PCS-61, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace fuse block (J/B).

NO

>> Replace ignition relay. Refer to 

PG-101, "Fuse, Connector and Terminal Arrangement"

.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Fuse block (J/B)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M3

6C

M122

82

Existed

Fuse block (J/B)

Ground

Continuity

Connector

Terminal

M3

6C

Not existed

Ignition relay

Ground

Continuity

Terminal

2

Existed

(+)

(–)

Voltage (V)

(Approx.)

Ignition relay

Terminal

5

Ground

Battery voltage

Revision: 2008 October

2009 Murano

PCS

B2616 IGNITION RELAY CIRCUIT

PCS-61

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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Component Inspection

INFOID:0000000003375888

1.

CHECK IGNITION RELAY

1.

Turn ignition switch OFF.

2.

Remove ignition relay.

3.

Check the continuity between ignition relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace Ignition relay. Refer to 

PG-101, "Fuse, Connec-

tor and Terminal Arrangement"

.

Terminals

Condition

Continuity

3 and 5

12 V direct current supply between terminals 1 and 2

Existed

No current supply

Not existed

PBIB0098E

Revision: 2008 October

2009 Murano

PCS-62

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2618 BCM

B2618 BCM

Description

INFOID:0000000003375889

BCM controls the various electrical components and simultaneously supplies power according to the power
supply position.
BCM checks the power supply position internally.

DTC Logic

INFOID:0000000003375890

DTC DETECTION LOGIC

NOTE:
• If DTC B2618 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

PCS-47, "BCM : DTC Logic"

.

• If DTC B2618 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

PCS-48, "BCM : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions, and wait for at least 1 second.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-62, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375891

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Select “Self diagnostic result” mode with CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

PCS-62, "DTC Logic"

.

Is the 1st trip DTC B2618 displayed again?

YES

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

NO

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2618

BCM

An immediate operation of ignition relay (IPDM E/
R) is requested by BCM, but there is no response 
for more than 1 second

BCM

Revision: 2008 October

2009 Murano

PCS

B261A PUSH-BUTTON IGNITION SWITCH

PCS-63

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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B261A PUSH-BUTTON IGNITION SWITCH

Description

INFOID:0000000003375892

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.

DTC Logic

INFOID:0000000003375893

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch under the following conditions, and wait for at least 1 second.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-63, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375894

1.

CHECK 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 IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace IPDM E/R. Refer to 

PCS-34, "Removal and Installation"

.

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

1.

Disconnect BCM 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.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B261A

PUSH-BUTTON IG-
NITION SWITCH

 BCM detects a difference of signal for 1 second or 
more between the following information. 
• Power supply position by push-button ignition 

switch

• Power supply position from IPDM E/R (CAN)

Harness or connectors
(Push-button ignition switch circuit is 
open or shorted.)

(+)

(–)

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E10

28

Ground

Battery voltage

IPDM E/R

BCM

Continuity

Connector

Terminal

Connector

Terminal

E10

28

M122

89

Existed

Revision: 2008 October

2009 Murano

PCS-64

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B261A PUSH-BUTTON IGNITION SWITCH

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

NO

>> Repair or replace harness.

IPDM E/R

Ground

Continuity

Connector

Terminal

E10

28

Not existed

Revision: 2008 October

2009 Murano

PCS

POWER SUPPLY AND GROUND CIRCUIT

PCS-65

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

POWER SUPPLY AND GROUND CIRCUIT

BCM

BCM : Diagnosis Procedure

INFOID:0000000003375895

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 or replace harness.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair or replace harness.

Signal name

Fuse and fusible link No.

Battery power supply

L

10

(+)

(

−

)

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M118

1

Ground

Battery voltage

M119

11

M123

116

BCM

Ground

Continuity

Connector

Terminal

M119

13

Existed

Revision: 2008 October

2009 Murano

PCS-66

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

PUSH-BUTTON IGNITION SWITCH

Description

INFOID:0000000003375896

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:0000000003375897

1.

CHECK FUNCTION

1.

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

2.

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

Is the indication normal?

YES

>> INSPECTION END

NO

>> Go to  

PCS-66, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000004757286

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 

PCS-129, "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

M122

89

M101

4

Existed

BCM

Ground

Continuity

Connector

Terminal

M122

89

Not existed

Revision: 2008 October

2009 Murano