Nissan Leaf. Manual - part 993

PCS

B2616 IGNITION RELAY CIRCUIT

PCS-55

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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B2616 IGNITION RELAY CIRCUIT

DTC Logic

INFOID:0000000010120320

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn power switch ON, and wait for 1 second or more.

2. Perform Self Diagnostic Result of BCM with CONSULT. 
Is DTC B2616 detected?

YES

>> Go to 

PCS-55, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010120321

Regarding Wiring Diagram information, refer to 

PCS-42, "Wiring Diagram"

.

1.

CHECK IGNITION RELAY-2 CONTROL SIGNAL

Check voltage between BCM connector M23 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK IGNITION RELAY-2 CONTROL SIGNAL CIRCUIT

1. Turn power switch OFF.

2. Disconnect BCM connector M23.

3. Remove ignition relay-2.

4. Check continuity between BCM connector M23 and ignition relay-2.

5. Check continuity between BCM connector M23 and ground.

Is the inspection result normal?

CONSULT Display

DTC Detection Condition

Possible Cause

IGN RELAY2 REQ F/B
[B2616]

The following status is compared, and does not 
agree for 1 second or more.
• State of ignition relay-2 (fuse block) control 

judgment in BCM

• State of ignition relay-2 (fuse block) control sig-

nal

• Harness or connectors [Ignition relay-2 (fuse 

block) control signal circuit]

• BCM
• Ignition relay-2 (fuse block)

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M23

99

—

Power switch OFF

0 - 0.5

Power switch ACC or ON

Battery voltage

BCM

Ignition relay-2

Continuity

Connector

Terminal

Terminal

M23

99

Coil upstream side

Yes

BCM

Ground

Continuity

Connector

Terminal

M23

99

—

No

PCS-56

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2616 IGNITION RELAY CIRCUIT

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK IGNITION RELAY-2

Perform the ignition relay-2 component inspection. Refer to 

PCS-56, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> Replace ignition relay-2.

Component Inspection

INFOID:0000000010120322

1.

CHECK IGNITION RELAY-2

1. Turn power switch OFF.

2. Remove ignition relay-2.

3. Check continuity between ignition relay-2 terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace ignition relay-2.

Ignition relay-2 terminals

Condition

Continuity

3 and 5

Battery voltage applied to 
terminal 1 and ground to 
terminal 2

Yes

Voltage and ground re-
moved

No

PBIB0098E

PCS

B2618 BCM

PCS-57

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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B2618 BCM

DTC Logic

INFOID:0000000010120323

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn power switch ON, and wait for 1 second or more.

2. Perform Self Diagnostic Result of BCM with CONSULT. 
Is DTC B2618 detected?

YES

>> Go to 

PCS-57, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010120324

Regarding Wiring Diagram information, refer to 

PCS-42, "Wiring Diagram"

.

1.

CHECK IGNITION RELAY-1 (IPDM E/R) CONTROL SIGNAL

Check voltage between BCM connector M23 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK IGNITION RELAY-1 (IPDM E/R) CONTROL SIGNAL CIRCUIT

1. Turn power switch OFF.

2. Disconnect BCM connector M23 and IPDM E/R connector E17.

3. Check continuity between BCM connector M23 and IPDM E/R connector E17.

4. Check continuity between BCM connector M23 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

CONSULT Display

DTC Detection Condition

Possible Cause

IGN RELAY1 REQ F/B
[B2618]

The following status is compared, and does not 
agree for 1 second or more.
• State of ignition relay-1 (IPDM E/R) control 

judgment in BCM

• State of ignition relay-1 (IPDM E/R) control sig-

nal

• Harness or connectors 

[Ignition relay-1 (IPDM E/R) control signal cir-
cuit]

• BCM
• IPDM E/R

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M23

98

—

Power switch OFF

0 - 0.5

Power switch ACC or ON

Battery voltage

BCM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M23

98

E17

68

Yes

BCM

Ground

Continuity

Connector

Terminal

M23

98

—

No

PCS-58

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2618 BCM

NO

>> Repair or replace harness or connectors.

3.

CHECK VOLTAGE OF IGNITION RELAY-1 (IPDM E/R) CONTROL SIGNAL CIRCUIT (IPDM E/R SIDE) 

1. Connect IPDM E/R connector E17.

2. Check voltage between IPDM E/R connector E17 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> Replace IPDM E/R. Refer to 

PCS-29, "Removal and Installation"

.

IPDM E/R

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

E17

68

—

Power switch OFF

Battery voltage