Nissan Leaf. Manual - part 1082

SEC-90

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2604 SHIFT POSITION

B2604 SHIFT POSITION

DTC Logic

INFOID:0000000010119278

DTC DETECTION LOGIC

NOTE:

• If DTC B2604 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-61, "DTC Logic"

.

• If DTC B2604 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-62, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn power switch ON.

2. Operate electric shift selector to change shift position to P, and wait 5 seconds or more.

3. Operate electric shift selector to change shift position to N, and wait 5 seconds or more.

4. Operate electric shift selector to change shift position to any position other than P and N, and wait 5 sec-

onds or more.

5. Check DTC in “Self Diagnostic Result” of “BCM” using CONSULT.
Is DTC detected?

YES

>> Go to 

SEC-90, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010119279

Regarding Wiring Diagram information, refer to 

SEC-42, "Wiring Diagram"

.

1.

CHECK DTC OF VCM

Check DTC in “Self Diagnostic Result” of “EV/HEV” using CONSULT.
Is DTC detected?

YES

>> Perform the trouble diagnosis related to the detected DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK BCM INPUT SIGNAL

1. Turn power switch ON.

2. Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2604

SHIFT PN DIAG CAN

The following states are detected for 5 seconds 
while power switch is ON:
• P/N position signal is sent from VCM but shift 

position signal input (CAN) from VCM is other 
than P and N

• P/N position signal is not sent from VCM but 

shift position signal input (CAN) from VCM is 
P or N

• Harness or connectors

(CAN communication line is open 
or shorted.)

• Harness or connectors

(VCM circuit is open or shorted.)

• VCM
• BCM

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M23

102

Ground

Shift position

P or N

Battery voltage 

Other than above

0 

− 1.5

B2604 SHIFT POSITION

SEC-91

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

NO

>> GO TO 4.

3.

REPLACE BCM

1. Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT. Refer to the CON-

SULT Immobilizer mode and follow the on screen instructions.

>> Inspection End.

4.

CHECK BCM INPUT SIGNAL CIRCUIT

1. Turn power switch OFF.

2. Disconnect BCM connector.

3. Disconnect VCM connector.

4. Check continuity between BCM harness connector and VCM harness connector.

5. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-53, "Intermittent Incident"

.

>> Inspection End.

BCM

VCM

Continuity

Connector

Terminal

Connector

Terminal

M23

102

E61

47

Yes

BCM

Ground

Continuity

Connector

Terminal

M23

102

No

SEC-92

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2617 READY SIGNAL CIRCUIT

B2617 READY SIGNAL CIRCUIT

DTC Logic

INFOID:0000000010119280

DTC DETECTION LOGIC

NOTE:

• If DTC B2617 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-61, "DTC Logic"

.

• If DTC B2617 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-62, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Press power switch under the following conditions, and wait at least 1 second.

-

Shift position: P or N

-

Brake pedal: Depressed

2. Check DTC in “Self Diagnostic Result” of “BCM” using CONSULT.
Is DTC detected?

YES

>> Go to 

SEC-92, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010119281

Regarding Wiring Diagram information, refer to 

SEC-42, "Wiring Diagram"

.

1.

CHECK DTC OF VCM

Check DTC in “Self Diagnostic Result” of “EV/HEV” using CONSULT.
Is DTC detected?

YES

>> Perform the trouble diagnosis related to the detected DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK READY SIGNAL

1. Turn power switch ON.

2. Check voltage between VCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 3.

3.

CHECK READY SIGNAL CIRCUIT

1. Turn power switch OFF.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2617

ST RELAY REQ F/B

An immediate operation of setting vehicle to 
READY is requested by BCM, but there is no 
response for more than 1 second from VCM.

• Harness or connectors

(READY signal circuit is open or short-
ed.)

• BCM
• VCM

(+)

(–)

Condition

Voltage (V)

(Approx.)

VCM

Connector

Terminal

E61

30

Ground

Power switch ON

Battery voltage 

Power switch ON 

→ Vehicle READY

0 

− 0.5

B2617 READY SIGNAL CIRCUIT

SEC-93

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

2. Disconnect BCM connector and VCM connector.

3. Check continuity between BCM harness connector and VCM harness connector.

4. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness or connector.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-53, "Intermittent Incident"

.

>> Inspection End.

5.

REPLACE BCM

1. Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT. Refer to the CON-

SULT Immobilizer mode and follow the on screen instructions.

>> Inspection End.

BCM

VCM

Continuity

Connector

Terminal

Connector

Terminal

M23

97

E61

30

Yes

BCM

Ground

Continuity

Connector

Terminal

M23

97

No