Nissan Pathfinder. Manual - part 898

PCS-68

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2618 BCM

B2618 BCM

DTC Logic

INFOID:0000000009175234

DTC DETECTION LOGIC

NOTE:

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

PCS-58, "DTC Logic"

.

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

PCS-59, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

 PERFORM SELF DIAGNOSTIC RESULT

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

-

CVT selector lever is in the P (park) or N (neutral) position.

-

Release brake pedal

2. Perform self diagnostic result. 
Is DTC B2618 detected?

YES

>> Refer to 

PCS-68, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175235

Regarding Wiring Diagram information, refer to 

PCS-44, "Wiring Diagram"

.

1.

 CHECK SELF DIAGNOSTIC RESULT FOR IPDM E/R

Perform self diagnostic result for IPDM E/R.
Are any DTCs detected?

YES

>> Refer to 

PCS-20, "DTC Index"

. 

NO

>> GO TO 2

2.

 CHECK IGNITION RELAY-1 COIL POWER SUPPLY FEEDBACK (IPDM E/R)

Check voltage between IPDM E/R connector E119 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

3.

 CHECK IGNITION RELAY-1 COIL POWER SUPPLY FEEDBACK (BCM)

Check voltage between BCM connector M19 and ground.

CONSULT Display

DTC Detection Condition

Possible Cause

BCM
[B2618]

An immediate operation of ignition relay-1 is request-
ed by BCM, but there is no response for more than 1 
second

• BCM

IPDM E/R

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

E119

43

—

Ignition: OFF

0V

Ignition: ON

Battery voltage

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

PCS

B2618 BCM

PCS-69

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

NO

>> GO TO 4.

4.

 CHECK IGNITION RELAY-1 COIL POWER SUPPLY FEEDBACK CIRCUIT (BCM)

1. Turn ignition switch OFF.

2. Disconnect BCM connector M19 and IPDM E/R connector E119.

3. Check continuity between BCM connector M19 and IPDM E/R connector E119.

4. Check continuity between BCM connector M19 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Repair or replace harness or connectors.

M19

70

—

Ignition: OFF

0V

Ignition: ON

Battery voltage

BCM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M19

70

E119

43

Yes

BCM

Ground

Continuity

Connector

Terminal

M19

70

—

No

PCS-70

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B261A PUSH-BUTTON IGNITION SWITCH

B261A PUSH-BUTTON IGNITION SWITCH

DTC Logic

INFOID:0000000009175236

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM SELF DIAGNOSTIC RESULT

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

-

CVT selector lever is in the P (park) or N (neutral) position.

-

Release the brake pedal.

2. Perform self diagnostic result. 
Is DTC B261A detected?

YES

>> Refer to 

PCS-70, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175237

Regarding Wiring Diagram information, refer to 

PCS-44, "Wiring Diagram"

.

1.

 CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)

1. Disconnect push-button ignition switch connector.

2. Check voltage between push-button ignition switch connector M17 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

 CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

Check voltage between IPDM E/R connector E119 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

3.

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

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R connector E119 and BCM connector M18.

3. Check continuity between IPDM E/R connector E119 and push-button ignition switch connector M17.

CONSULT Display

DTC Detection Condition

Possible Cause

PUSH-BUTTON IGNITION 
SWITCH
[B261A]

 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
• BCM

Push-button ignition switch

Ground

Voltage

(Approx.)

Connector

Terminal

M17

8

—

Battery voltage

IPDM E/R

Ground

Voltage

(Approx.)

Connector

Terminal

E119

38

—

Battery voltage

PCS

B261A PUSH-BUTTON IGNITION SWITCH

PCS-71

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

4. Check continuity between IPDM E/R connector E119 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Repair or replace harness or connectors.

4.

 CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)

Check voltage between BCM connector M18 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

5.

 CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

1. Turn ignition switch OFF.

2. Disconnect BCM connector M18 and IPDM E/R connector E119.

3. Check continuity between BCM connector M18 and push-button ignition switch connector M17.

4. Check continuity between BCM connector M18 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Repair or replace harness or connectors.

IPDM E/R

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

E119

38

M17

8

Yes

IPDM E/R

Ground

Continuity

Connector

Terminal

E119

38

—

No

BCM

Ground

Voltage

(Approx.)

Connector

Terminal

M18

1

—

Battery voltage

BCM

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

M18

1

M17

8

Yes

BCM

Ground

Continuity

Connector

Terminal

M18

1

—

No