Nissan X-Trail 32. Manual - part 1847

B27D5 S/L SENSOR TEST OUTPUT

SEC-155

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

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B27D5 S/L SENSOR TEST OUTPUT

DTC Description

INFOID:0000000010922191

When steering lock unit operation is complete, BCM determines that the steering lock unit is operating cor-
rectly by grounding the power supply.

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Steering lock unit
• BCM
• Harness or connectors

(Sensor circuit is open or shorted)

FAIL-SAFE

Inhibit steering unlock

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE1

1.

Press push-button ignition switch under the following conditions.

-

Selector lever: P position

-

Brake pedal: Not depressed

2.

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

Is DTC detected?

YES

>> Refer to 

SEC-155, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE2

1.

Turn ignition switch to OFF, and then wait for 3minutes with driver door open.
NOTE:
• 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: P position

-

Brake pedal: Not depressed

3.

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

Is DTC detected?

YES

>> Refer to 

SEC-155, "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:0000000010922192

1.

CHECK STEERING LOCK UNIT SENSOR CIRCUIT OUTPUT SIGNAL

Check voltage between steering lock unit harness connector and ground.

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B27D5–00

S/L SENSOR TEST OUTPUT
(Steering lock unit sensor test output)

When BCM detects a sensor circuit short (short to battery)

(+)

(-)

Condition

Voltage

Steering lock unit

Connector

Terminal

M57

6

Ground

Steering lock unit

Active

9 - 16 V

Not active

0 - 0.5 V

SEC-156

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B27D5 S/L SENSOR TEST OUTPUT

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 2.

2.

CHECK STEERING LOCK UNIT SENSOR CIRCUIT OUTPUT SIGNAL CIRCUIT(SHORT TO GROUND)

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 3.

NO

>> Repair or replace harness.

3.

CHECK STEERING LOCK UNIT SENSOR CIRCUIT OUTPUT SIGNAL CIRCUIT(SHORT TO POWER)

Check voltage 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.

CHECK STEERING LOCK UNIT GROUND CIRCUIT

Check continuity between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

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 7.

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

Steering lock unit

Ground

Voltage

Connector

Terminal

M57

6

0 V

(+)

(-)

Continuity

Steering lock unit

Connector

Terminal

M57

1

Ground

Existed

B27D5 S/L SENSOR TEST OUTPUT

SEC-157

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

SEC-158

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B27D6 S/L CAN COMM CIRCUIT

B27D6 S/L CAN COMM CIRCUIT

DTC Description

INFOID:0000000010922193

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors

(The CAN communication line is open or shorted.)

• Steering lock unit
• BCM

FAIL-SAFE

Inhibit steering lock

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION 

1.

Turn ignition switch ON.

2.

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

Is DTC detected?

YES

>> Refer to 

SEC-158, "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:0000000010922194

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 3.

NO

>> GO TO 2.

2.

CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and steering lock unit connector.

3.

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

4.

Check continuity between steering lock unit harness connector and ground.

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B27D6–00

S/L CAN COMM CIRCUIT
(Steering lock unit controller area network 
communication circuit)

When BCM cannot detect a CAN signal from the steering lock unit.

(+)

(-)

Condition

Voltage

Steering lock unit

Connector

Terminal

M57

2

Ground

steering lock unit

Active

9 - 16 V

Not active

0 - 0.5 V

BCM

Steering lock unit

Continuity

Connector

Terminal

Connector

Terminal

M87

41

M57

2

Existed