Nissan Pathfinder. Manual - part 896

PCS-60

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B260A IGNITION RELAY

B260A IGNITION RELAY

DTC Logic

INFOID:0000000009175223

DTC DETECTION LOGIC

NOTE:

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

PCS-58, "DTC Logic"

.

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

PCS-59, "DTC Logic"

.

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

PCS-70, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

 PERFORM SELF DIAGNOSTIC RESULT

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

-

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

-

Release the brake pedal.

2. Perform self diagnostic result. 
Is DTC B260A detected?

YES

>> Refer to 

PCS-60, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175224

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

IGNITION RELAY
[B260A]

BCM detects a difference of signal for 2 seconds or 
more between the following information:
• Ignition relay-1 operation request.
• Ignition relay-1 feedback from IPDM E/R (CAN).

• Harness or connectors
• IPDM E/R
• BCM

IPDM E/R

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

E119

43

—

Ignition: OFF

0V

Ignition: ON

Battery voltage

PCS

B260A IGNITION RELAY

PCS-61

< 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.

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

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-62

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2614 ACC RELAY CIRCUIT

B2614 ACC RELAY CIRCUIT

DTC Logic

INFOID:0000000009175225

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM SELF DIAGNOSTIC RESULT

1. Turn the power supply position to ACC 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 B2614 detected?

YES

>> Refer to 

PCS-62, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175226

Regarding Wiring Diagram information, refer to 

PCS-44, "Wiring Diagram"

.

1.

 CHECK ACCESSORY RELAY-1 AND ACCESSORY RELAY-2 POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect accessory relay-1 and accessory relay-2.

3. Disconnect BCM connector M80.

4. Check continuity between accessory relay-1 connector J-3 and BCM connector M80.

5. Check continuity between accessory relay-2 connector E22 and BCM connector M80.

6. Check continuity between BCM connector M80 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

 CHECK ACCESSORY RELAY-1 AND ACCESSORY RELAY-2 GROUND CIRCUIT

CONSULT Display

DTC detecting condition

Possible cause

ACC RELAY CIRCUIT
[B2614]

An immediate operation of accessory relay-1 and ac-
cessory relay-2 is requested by BCM, but there is no 
response for more than 1 second.

• Harness or connectors
• Accessory relay-1
• Accessory relay-2
• Fuse block J/B
• BCM

Accessory relay-1

BCM

Continuity

Connector

Terminal

Connector

Terminal

J-3

2

M80

113

Yes

Accessory relay-2

BCM

Continuity

Connector

Terminal

Connector

Terminal

E22

1

M80

113

Yes

BCM

Ground

Continuity

Connector

Terminal

M80

113

—

No

PCS

B2614 ACC RELAY CIRCUIT

PCS-63

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

1. Turn ignition switch OFF.

2. Check continuity between accessory relay-1 connector J-3 and ground.

3. Check continuity between accessory relay-2 connector E22 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

 CHECK ACCESSORY RELAYS

Perform the relay component inspection. Refer to 

PCS-63, "Component Inspection (Relay)"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace relay.

4.

 CHECK ACCESSORY RELAY-1 AND ACCESSORY RELAY-2 POWER SUPPLY (BCM)

Check voltage between BCM connector M80 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

Component Inspection (Relay)

INFOID:0000000009175227

1.

 CHECK RELAY

1. Remove relay.

2. Check the continuity between relay terminals under the following conditions.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace relay.

Accessory relay-1

Ground

Continuity

Connector

Terminal

J-3

1

—

Yes

Accessory relay-2

Ground

Continuity

Connector

Terminal

E22

2

—

Yes

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M80

113

—

Ignition: OFF

0V

Ignition: ACC

Battery voltage

Relay terminals

Condition

Continuity

3 and 5

Battery voltage applied to terminal 2 and 
ground to terminal 1.

Yes

Voltage and ground removed.

No