Nissan Leaf. Manual - part 1079

 

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Nissan Leaf. Manual - part 1079

 

 

SEC-78

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2555 STOP LAMP

B2555 STOP LAMP

DTC Logic

INFOID:0000000010119264

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Depress brake pedal and wait 1 second or more.

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

YES

>> Go to 

SEC-78, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010119265

Regarding Wiring Diagram information, refer to 

SEC-42, "Wiring Diagram"

.

1.

CHECK STOP LAMP SWITCH INPUT SIGNAL 1

1. Turn power switch OFF.

2. Disconnect BCM connector.

3. Check voltage between BCM harness connector and ground.

Is the inspection normal?

YES

>> GO TO 2.

NO-1 >> Check 10 A fuse [No. 38, located in the fuse block (J/B)].

NO-2 >> Check harness for open or short between BCM and fuse.

2.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1. Disconnect stop lamp switch connector.

2. Check voltage between stop lamp switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness for open or short between stop lamp switch and fuse.

3.

CHECK STOP LAMP SWITCH INPUT SIGNAL 2

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2555

STOP LAMP CIRCUIT

BCM makes a comparison between the 
upper voltage and the lower voltage of stop 
lamp switch. It judges from their values to 
detect the malfunctioning circuit.

• Harness or connectors

(Stop lamp switch circuit is open or 
shorted.)

• Stop lamp switch
• Fuse
• BCM

(+)

(–)

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M23

105

Ground

Battery voltage

(+)

(–)

Voltage (V)

(Approx.)

Stop lamp switch

Connector

Terminal

E102

1

Ground

Battery voltage

B2555 STOP LAMP

SEC-79

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

1. Connect stop lamp switch connector.

2. Check voltage between BCM harness connector and ground.

Is the inspecting result normal?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

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.

5.

CHECK STOP LAMP SWITCH CIRCUIT

1. Disconnect stop lamp switch connector.

2. Check continuity between stop lamp switch harness connector and BCM harness connector.

3. Check continuity between stop lamp switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK STOP LAMP SWITCH

Refer to 

SEC-79, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace stop lamp switch. Refer to 

BR-500, "Removal and Installation"

.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-53, "Intermittent Incident"

.

>> Inspection End.

Component Inspection

INFOID:0000000010119266

1.

CHECK STOP LAMP SWITCH

1. Turn power switch OFF.

2. Disconnect stop lamp switch connector.

3. Check continuity between stop lamp switch terminals.

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M24

9

Ground

Brake pedal

Depressed

Battery voltage 

Not depressed

0

Stop lamp switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

E102

2

M24

9

Yes

Stop lamp switch

Ground

Continuity

Connector

Terminal

E102

2

No

SEC-80

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2555 STOP LAMP

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace stop lamp switch. Refer to 

BR-500, "Removal and Installation"

.

Stop lamp switch

Condition

Continuity

Terminal

1

2

Brake pedal

Not depressed

No

Depressed

Yes

B2556 POWER SWITCH

SEC-81

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2556 POWER SWITCH

DTC Logic

INFOID:0000000010119267

DTC DETECTION LOGIC

*: “ENG START SW” is indicated on CONSULT screen, however this means power switch on this vehicle.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Press power switch under the following condition.

-

Brake pedal: Not depressed

2. Release power switch and wait 100 seconds or more. 

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

YES

>> Go to 

SEC-81, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010119268

Regarding Wiring Diagram information, refer to 

SEC-42, "Wiring Diagram"

.

1.

CHECK POWER SWITCH INPUT SIGNAL

1. Turn power switch OFF.

2. Disconnect power switch connector.

3. Check voltage between power switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK POWER SWITCH CIRCUIT

1. Disconnect BCM connector and IPDM E/R connector.

2. Check continuity between power switch harness connector and BCM harness connector.

3. Check continuity between power switch harness connector and ground.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2556

ENG START SW*

BCM detects the power switch stuck at ON 
for 100 seconds or more.

• Harness or connectors

(Power switch circuit is shorted.)

• Power switch
• BCM

(+)

(–)

Voltage (V)

(Approx.)

Power switch

Connector

Terminal

M33

8

Ground

Battery voltage

Power switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

M33

8

M23

76

Yes

Power switch

Ground

Continuity

Connector

Terminal

M33

8

No

 

 

 

 

 

 

 

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