Nissan Pathfinder. Manual - part 888

PCS-28

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000009175197

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009175198

1.

 REPLACE IPDM E/R

When DTC U1010 is detected, replace IPDM E/R.

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

CAN COMM CIRCUIT
[U1010]

IPDM E/R detected internal CAN communication circuit 
malfunction.

IPDM E/R

PCS

B2098 IGNITION RELAY ON STUCK

PCS-29

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

B2098 IGNITION RELAY ON STUCK

DTC Logic

INFOID:0000000009175200

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION

1. Turn ignition switch ON.

2. Turn ignition switch OFF and wait 1 second or more.

3. Turn ignition switch ON.

4. Perform Self Diagnostic Result of IPDM E/R using CONSULT.
Is DTC B2098 displayed?

YES

>> Refer to 

PCS-29, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175201

1.

 PERFORM SELF DIAGNOSTIC RESULT

Perform Self Diagnostic Result of IPDM E/R using CONSULT.
Is display history of DTC B2098 CRNT?

YES

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

NO

>> Refer to 

GI-49, "Intermittent Incident"

.

CONSULT Display

DTC Detection Condition

Possible Cause

IGN RELAY ON
[B2098]

The ignition relay ON is detected for 1 second at 
ignition switch OFF
(CPU monitors the status at the contact and exci-
tation coil circuits of the ignition relay inside it)

IPDM E/R

PCS-30

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

B2099 IGNITION RELAY OFF STUCK

B2099 IGNITION RELAY OFF STUCK

DTC Logic

INFOID:0000000009175203

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION

1. Turn ignition switch ON.

2. Turn ignition switch OFF and wait 1 second or more.

3. Turn ignition switch ON.

4. Perform Self Diagnostic Result of IPDM E/R using CONSULT.
Is DTC B2099 displayed?

YES

>> Refer to 

PCS-30, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175204

1.

 PERFORM SELF DIAGNOSTIC RESULT

Perform Self Diagnostic Result of IPDM E/R using CONSULT.
Is display history of DTC B2099 CRNT?

YES

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

NO

>> Refer to 

GI-49, "Intermittent Incident"

.

CONSULT Display

DTC Detection Condition

Possible Cause

IGN RELAY OFF
[B2099]

The ignition relay OFF is detected for 1 second at 
ignition switch ON
(CPU monitors the status at the contact and exci-
tation coil circuits of the ignition relay inside it)

IPDM E/R

PCS

POWER SUPPLY AND GROUND CIRCUIT

PCS-31

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000009175205

Regarding Wiring Diagram information, refer to 

PCS-21, "Wiring Diagram"

.

1.

 CHECK FUSIBLE LINKS

Check that the following fusible links are not blown.

Is the fusible link blown?

YES

>> Replace the blown fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Disconnect IPDM E/R connectors E118 and E120.

2. Check voltage between IPDM E/R connectors and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

 CHECK GROUND CIRCUIT

1. Disconnect IPDM E/R connectors E119 and E121.

2. Check continuity between IPDM E/R connectors and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

Terminal No.

Signal name

Fusible link No.

1

Fusible link main

E (80A)

2

Fusible link IPDM E/R

A (250A), C (80A)

3

Fusible link ignition switch

A (250A), B (100A), K (40A)

IPDM E/R

Ground

Voltage

(Approx.)

Connector

Terminal

E118

1

—

Battery voltage

2

E120

3

IPDM E/R

Ground

Continuity

Connector

Terminal

E121

7

—

Yes

E119

41