Nissan X-Trail 32. Manual - part 1846

B27D2 START CUT RELAY ON

SEC-151

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 8.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000010922186

1.

CHECK STARTER CONTROL RELAY

1.

Disconnect starter control relay.

2.

Check continuity between starter relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace starter control relay.

SEF497Y

starter control relay

Condition

Continuity

Terminal

12 V direct current supply between terminals 

 and 

Existed

No current supply

Not existed

SEC-152

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B27D3 S/L THERMAL PROTECTION

B27D3 S/L THERMAL PROTECTION

DTC Description

INFOID:0000000010922187

DTC DETECTION LOGIC

POSSIBLE CAUSE

Steering lock unit 

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press push-button ignition switch under the following conditions and wait 1 second or more.

-

Selector lever: In the P position.

-

Brake pedal: Not depressed.

2.

Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-152, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010922188

1.

CHECK SELF DIAGNOSTIC RESULT

1.

Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

2.

Turn ignition switch OFF and wait 1minute or more.

3.

Turn ignition switch ON.

4.

Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is the DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

REPLACE STEERING LOCK UNIT

1.

Replace steering lock unit.

2.

Perform the service procedure for steering lock unit replacement. Refer to 

SEC-101, "STEERING LOCK

UNIT : Work Procedure"

.

>> INSPECTION END

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B27D3–00

S/L THERMAL PROTECTION
(Steering lock thermal protection)

When thermal protection of the steering lock unit operates.

B27D4 BCM - S/L SENSOR CIRCUIT

SEC-153

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B27D4 BCM - S/L SENSOR CIRCUIT

DTC Description

INFOID:0000000010922189

The sensor circuit is a circuit with which BCM supplies power to the steering lock unit during operation of the
steering lock unit.

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Steering lock unit
• BCM
• Harness or connector

(Sensor circuit is open or shorted.)

FAIL-SAFE

Inhibit steering unlock

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE-1

1.

Press push-button ignition switch under the following conditions.

-

Selector lever: In the P position.

-

Brake pedal: Not depressed.

Is DTC detected?

YES

>> Refer to 

SEC-153, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-2

1.

Turn ignition switch to OFF, and then wait for 3 minutes with driver door open.
NOTICE:
• Even after ignition switch is OFF, power is supplied to accessories for a certain amount of time by the

AUTO ACC function.

• When vehicle is operated while on standby, power may be supplied to accessories.

2.

Under the following conditions, press the engine switch and unlock the steering wheel.

-

Selector lever: In the P position.

-

Brake pedal: Not depressed.

3.

Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-153, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010922190

1.

CHECK SELF DIAGNOSTIC RESULT

1.

Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

2.

Erase DTC.

3.

Perform DTC CONFIRMWTION PROCEDURE for DTCB27D4. Refer to 

SEC-153, "DTC Description"

.

Is DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 6.

2.

CHECK STEERING LOCK UNIT SENSOR CIRCUIT OUTPUT SIGNAL

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B27D4–00

BCM - S/L SENSOR CIRCUIT
(Body control module - steering lock unit sensor 
circuit)

BCM detects a sensor circuit short (short to ground)

SEC-154

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B27D4 BCM - S/L SENSOR CIRCUIT

Check voltage between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 3.

3.

CHECK STEERING LOCK UNIT SENSOR CIRCUIT OUTPUT SIGNAL CIRCUIT

1.

Disconnect BCM connector and steering lock unit connector.

2.

Check continuity between BCM harness connector and steering lock unit harness connector.

3.

Check continuity between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

REPLACE BCM

Replace BCM. Refer to 

BCS-121, "Removal and Installation"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 5.

5.

REPLACE STEERING LOCK UNIT

1.

Replace steering lock unit.

2.

Perform the service procedure for steering lock unit replacement. Refer to 

SEC-101, "STEERING LOCK

UNIT : Work Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

(+)

(-)

Condition

Voltage

Steering lock unit

Connector

Terminal

M57

6

Ground

Steering lock unit

Active

9 - 16 V

Not active

0 - 0.5 V

BCM

Steering lock unit

Continuity

Connector

Terminal

Connector

Terminal

M86

90

M57

6

Existed

Steering lock unit

Ground

Continuity

Connector

Terminal

M57

6

Not existed