Infiniti G35 (V35) Sedan. Manual - part 1179

B2609 STEERING STATUS

SEC-71

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

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N

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1.

Turn ignition switch OFF.

2.

Disconnect steering lock unit harness connector and IPDM E/R harness connector E5.

3.

Check voltage between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK STEERING LOCK UNIT CIRCUIT-I

1.

Disconnect BCM harness connector M122.

2.

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

3.

Check continuity between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

4.

CHECK IPDM E/R OUTPUT SIGNAL

1.

Connect IPDM E/R harness connector E5.

2.

Disconnect BCM harness connector M122.

3.

Check voltage between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace steering lock unit.

NO

>> GO TO 5.

5.

CHECK STEERING LOCK UNIT CIRCUIT-II

1.

Check continuity between steering lock unit harness connector and IPDM E/R harness connector.

2.

Check continuity between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

Steering lock unit

Ground

Voltage [V]

Connector

Terminal

M40

3

Ground

Battery voltage

Steering lock unit

BCM

Continuity

Connector

Terminal

Connector

Terminal

M40

3

M122

97

Existed

Steering lock unit

Ground

Continuity

Connector

Terminal

M40

3

Ground

Not existed

Steering lock unit

Ground

Voltage [V]

Connector

Terminal

M40

3

Ground

Battery voltage

Steering lock unit

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M40

3

E5

32

Existed

Steering lock unit

Ground

Continuity

Connector

Terminal

M40

3

Ground

Not existed

SEC-72

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2609 STEERING STATUS

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

7.

CHECK BCM OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect steering lock unit harness connector and IPDM E/R harness connector E5.

3.

Check voltage between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 8.

8.

CHECK STEERING LOCK UNIT CIRCUIT-I

1.

Disconnect BCM harness connector M122.

2.

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

3.

Check continuity between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair harness or connector.

9.

CHECK IPDM E/R OUTPUT SIGNAL

1.

Connect IPDM E/R harness connector E5.

2.

Disconnect BCM harness connector M122.

3.

Check voltage between steering lock unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace steering lock unit.

NO

>> GO TO 10.

10.

CHECK STEERING LOCK UNIT CIRCUIT-II

1.

Check continuity between steering lock unit harness connector and IPDM E/R harness connector.

2.

Check continuity between steering lock unit harness connector and ground.

Steering lock unit

Ground

Voltage [V]

Connector

Terminal

M40

8

Ground

Battery voltage

Steering lock unit

BCM

Continuity

Connector

Terminal

Connector

Terminal

M40

8

M122

98

Existed

Steering lock unit

Ground

Continuity

Connector

Terminal

M40

8

Ground

Not existed

Steering lock unit

Ground

Voltage [V]

Connector

Terminal

M40

8

Ground

Battery voltage

Steering lock unit

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M40

8

E5

33

Existed

B2609 STEERING STATUS

SEC-73

< COMPONENT DIAGNOSIS >

[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 11.

NO

>> Repair harness or connector.

11.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

Steering lock unit

Ground

Continuity

Connector

Terminal

M40

8

Ground

Not existed

SEC-74

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B260B STEERING LOCK UNIT

B260B STEERING LOCK UNIT

Description

INFOID:0000000000961398

The steering lock unit performs the check by itself according to the steering status.

DTC Logic

INFOID:0000000000961399

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch, when steering is locked.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-74, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000000961400

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

SEC-74, "DTC Logic"

.

Is the DTC B260B displayed again?

YES

>> Replace steering lock unit. 

NO

>> INSPECTION END.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B260B

STEERING LOCK 
UNIT

BCM detects malfunctioning of steering lock unit 
before steering unlocking.

• Steering lock unit