Nissan Cube. Manual - part 809

B2555 STOP LAMP

SEC-47

< 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

>> Replace BCM. Refer to 

BCS-88, "Removal and Installation"

.

NO

>> GO TO 4.

4.

CHECK STOP LAMP SWITCH CIRCUIT

1.

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

2.

Check continuity between stop lamp switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK STOP LAMP SWITCH

Refer to 

SEC-47, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace stop lamp switch. Refer to 

BR-17, "Exploded View"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009950129

1.

CHECK STOP LAMP SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp switch connector.

3.

Check continuity between stop lamp switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace stop lamp switch. Refer to 

BR-17, "Exploded View"

.

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M68

9

Ground

Brake pedal

Depressed

Battery voltage

Not depressed

0

Stop lamp switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

E115

2

M68

9

Existed

Stop lamp switch

Ground

Continuity

Connector

Terminal

E115

2

Not existed

Stop lamp switch

Condition

Continuity

Terminal

1

2

Brake pedal

Not depressed

Not existed

Depressed

Existed

SEC-48

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2556 PUSH-BUTTON IGNITION SWITCH

B2556 PUSH-BUTTON IGNITION SWITCH

Description

INFOID:0000000009950130

The switch changes the power supply position. BCM maintains the power supply position status. BCM
changes the power supply position with the operation of the push-button ignition switch.

DTC Logic

INFOID:0000000009950131

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine and wait 100 seconds or more.

2.

Check “Self-diagnosis result” using CONSULT.

Is DTC detected?

YES

>> Go to 

SEC-48, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009950132

1.

CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector.

3.

Check voltage between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

1.

Disconnect BCM connector and IPDM E/R connector.

2.

Check continuity between push-button ignition switch harness connector and BCM harness connector.

3.

Check continuity between push-button ignition switch harness connector and ground.

Is the inspection result normal?

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2556

PUSH-BTN IGN SW

BCM detects the push-button ignition 
switch stuck at ON for 100 seconds or 
more.

• Harness or connectors

(Push-button ignition switch circuit is shorted.)

• Push-button ignition switch
• BCM

(+)

(–)

Voltage (V)

(Approx.)

Push-button ignition switch

Connector

Terminal

M101

8

Ground

12

Push-button ignition switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

M101

8

M71

76

Existed

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M101

8

Not existed

B2556 PUSH-BUTTON IGNITION SWITCH

SEC-49

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

YES

>> Replace BCM. Refer to 

BCS-88, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT

Check continuity between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK PUSH-BUTTON IGNITION SWITCH

Refer to 

SEC-49, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace push-button ignition switch. Refer to 

PCS-144, "Removal and Installation"

.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009950133

1.

CHECK PUSH-BUTTON IGNITION SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector.

3.

Check continuity between push-button ignition switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace push-button ignition switch. Refer to 

PCS-144, "Removal and Installation"

.

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M101

4

Existed

Push-button ignition switch

Condition

Continuity

Terminal

4

8

Push-button ignition 
switch

Pressed

Existed

Not pressed

Not existed

SEC-50

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2557 VEHICLE SPEED

B2557 VEHICLE SPEED

Description

INFOID:0000000009950134

BCM receives 2 vehicle speed signals via CAN communication. 1 signal is transmitted by the “combination
meter”. Another signal is transmitted by “ABS actuator and electric unit (control unit.)”. BCM compares both
signals to detect the vehicle speed.

DTC Logic

INFOID:0000000009950135

DTC DETECTION LOGIC

NOTE:
• If DTC B2557 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-40, "DTC Logic"

.

• If DTC B2557 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-41, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Drive the vehicle at the vehicle speed of 10 km/h (6.2 MPH) or more and wait 10 seconds or more.

2.

Check “Self-diagnosis result” using CONSULT.

Is DTC detected?

YES

>> Go to 

SEC-50, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009950136

1.

CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”

Check “Self-diagnosis result” using CONSULT. Refer to 

BRC-98, "DTC Index"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK DTC WITH “COMBINATION METER”

Check “Self-diagnosis result” using CONSULT. Refer to 

MWI-62, "DTC Index"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the malfunctioning parts.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Self-diagnosis name

DTC detecting condition

Possible causes

B2557

VEHICLE SPEED

BCM detects the following difference between the vehicle 
speed signal from “combination meter” and the one from 
“ABS actuator and electric unit” for 10 seconds continuously.
• One is 10 km/h (6.2 MPH) or more and the other is 4 km/

h (2.5 MPH) or less

• Combination meter
• ABS actuator and electric 

unit (control unit)