Nissan Leaf. Manual - part 986

PCS

B2099 IGNITION RELAY OFF STUCK

PCS-27

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

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B2099 IGNITION RELAY OFF STUCK

DTC Logic

INFOID:0000000010120300

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-27, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010120301

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-29, "Removal and Installation"

.

NO

>> Refer to 

GI-53, "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-28

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000010120302

Regarding Wiring Diagram information, refer to 

PCS-20, "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. Turn power switch OFF.

2. Disconnect IPDM E/R connector E9.

3. Check voltage between IPDM E/R connector E9 and the ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the harness or connectors.

3.

CHECK GROUND CIRCUIT

1. Disconnect IPDM E/R connectors E11 and E12.

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

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace the harness or connectors.

Terminal No.

Signal name

Fuses and fusible link No.

1

Battery power supply

E (100 A)

2

A (250 A), C (100 A)

IPDM E/R

Ground

Voltage

(Approx.)

Connector

Terminal

E9

1

—

Battery voltage

2

IPDM E/R

Ground

Continuity

Connector

Terminal

E11

9

Yes

E12

18

PCS

IPDM E/R

PCS-29

< REMOVAL AND INSTALLATION >

[IPDM E/R]

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REMOVAL AND INSTALLATION

IPDM E/R

Exploded View

INFOID:0000000010120303

Removal and Installation

INFOID:0000000010120304

CAUTION:

To prevent damage to the parts, IPDM E/R integrated relays cannot be removed.

REMOVAL

1. Remove 12V battery. Refer to 

PCS-4, "Precaution for Removing 12V Battery"

.

2. Press and expand pawls (A) on lateral side of IPDM E/R cover

and remove IPDM E/R (1) from IPDM E/R cover B (2).

3. Disconnect the harness connector and then remove the IPDM E/R.
4. Remove IPDM E/R cover B mounting nuts (A).

1.

IPDM E/R

2.

IPDM E/R cover A

3.

IPDM E/R cover B

JMMIA0598ZZ

JMMIA0599ZZ

JMMIA0600ZZ

PCS-30

< REMOVAL AND INSTALLATION >

[IPDM E/R]

IPDM E/R

5. Insert a remover tool (A) between IPDM E/R cover A (1) and

IPDM E/R cover B (2), disengage pawls, and remove IPDM E/R

cover A.

6. Remove IPDM E/R cover B.

INSTALLATION

Install in the reverse order of removal.

JMMIA0461ZZ