Nissan Qashqai J11. Manual - part 1461

B27DB S/L IGN OFF

SEC-143

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

>> INSPECTION END

SEC-144

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B27DC S/L POWER SUPPLY

B27DC S/L POWER SUPPLY

DTC Logic

INFOID:0000000010438877

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors

(Steering lock unit power supply circuit is open or shorted)

• BCM
• Steering lock unit

FAIL-SAFE

Inhibit steering lock

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check DTC in “Self Diagnosis Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-144, "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:0000000010438878

1.

CHECK STEERING LOCK UNIT POWER SUPPLY

Check voltage between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> GO TO 2

2.

CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT

1.

Disconnect BCM connector and steering lock unit connector.

2.

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

3.

Check voltage between BCM harness connector and ground.

DTC No.

CONSULT screen items

DTC detecting condition

B27DC–00

S/L POWER SUPPLY

When power is supplied to the steering lock unit even though BCM is not supplying 
power to the steering lock unit.

(+)

(-)

Condition

Voltage

Steering lock unit

Connector

Terminal

M46

2

Ground

Steering lock unit

Active

9 - 16 V

Not active

0 - 0.5 V

Steering lock unit

BCM

Continuity

Connector

Terminal

Connector

Terminal

M46

2

M87

41

Existed

BCM

Ground

Continuity

Connector

Terminal

M87

41

Not existed

B27DC S/L POWER SUPPLY

SEC-145

< 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

>> GO TO 3

NO

>> Repair or replace harness.

3.

REPLACE BCM

Replace BCM. Refer to 

BCS-135, "Removal and Installation"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 4

4.

REPLACE STEERING LOCK UNIT

Replace steering lock unit. Refer to 

SEC-81, "STEERING LOCK UNIT : Work Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 5

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

SEC-146

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B27DD BCM - S/L ID DISCORD

B27DD BCM - S/L ID DISCORD

DTC Logic

INFOID:0000000010438879

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Steering lock unit
• BCM

FAIL-SAFE

Inhibit steering lock

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-146, "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:0000000010438880

1.

INTELLIGENT KEY REGISTRATION

Using CONSULT, register all Intelligent Keys again.

>> GO TO 2

2.

CHECK SELF-DIAGNOSIS RESULT

1.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.

2.

Erase DTC.

3.

Perform DTC CONFIRMATION PROCEDURE for DTC B27DD. Refer to 

SEC-146, "DTC Logic"

.

Is the DTC detected?

YES

>> GO TO 3

NO

>> INSPECTION END

3.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-135, "Removal and Installation"

.

2.

Perform DTC CONFIRMATION PROCEDURE for DTC B27DD. Refer to 

SEC-146, "DTC Logic"

.

Is the DTC detected?

YES

>> GO TO 4

NO

>> INSPECTION END

4.

REPLACE STEERING LOCK UNIT

Replace steering lock unit. Refer to 

SEC-81, "STEERING LOCK UNIT : Work Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 5

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

DTC No.

CONSULT screen items

DTC detecting condition

B27DD–00

BCM-S/L ID DISCORD

When BCM detects that the ID verification result of the steeling lock unit is NG.