Infiniti G37 Coupe. Manual - part 1145

 

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Infiniti G37 Coupe. Manual - part 1145

 

 

B2607 STEERING LOCK RELAY

SEC-77

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2607 STEERING LOCK RELAY

Description

INFOID:0000000001699978

BCM requests to IPDM E/R to supply power to steering lock unit. After receiving the power, the steering lock
unit transmits an ON signal to BCM.

DTC Logic

INFOID:0000000001699979

DTC DETECTION LOGIC

NOTE:
• If DTC B2607 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-36, "DTC Logic"

.

• If DTC B2607 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-37, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch under the following conditions.

A/T models

-

A/T selector lever is in the P or N position

-

Do not depress brake pedal

M/T models

-

Do not depress clutch pedal

2.

Steering lock is locked.

3.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-77, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001699980

1.

CHECK DTC WITH IPDM E/R

Check “Self diagnostic result” with CONSULT-III. Refer to 

SEC-214, "DTC Index"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> repair or replace the malfunctioning parts.

2.

CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect steering lock unit harness connector.

3.

Check voltage between steering lock unit and ground under the following conditions.

Is the inspection result normal?

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2607

STEERING LOCK 
RELAY

BCM detects that there is a difference between the 
following statuses.
• Steering lock unit ON signal transmitted by IPDM 

E/R

• The steering lock unit status feedback 

• Harness or connectors (steering 

lock unit power supply circuit is 
open or shorted)

• Steering lock relay (in IPDM E/R)

Steering lock unit

Ground

Condition

Voltage (V)

Connector

Terminal

M40

1

Ground

Press push-button ignition switch when 
steering lock is in lock condition.

Battery voltage

SEC-78

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2607 STEERING LOCK RELAY

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

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

4.

Check continuity between steering lock unit and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-34, "Removal and Installation"

.

NO

>> Repair harness or connector.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END.

Steering lock unit

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M40

1

E5

11

Existed

Steering lock unit

Ground

Continuity

Connector

Terminal

M40

1

Ground

Not existed

B2608 STARTER RELAY

SEC-79

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2608 STARTER RELAY

Description

INFOID:0000000001699981

Located in IPDM E/R, it runs the starter motor. The starter relay is turned ON by the BCM when the ignition
switch is in START position. IPDM E/R transmits the starter relay ON signal to BCM via CAN communication.

DTC Logic

INFOID:0000000001699982

DTC DETECTION LOGIC

NOTE:
• If DTC B2608 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-36, "DTC Logic"

.

• If DTC B2608 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-37, "DTC Logic"

.

• If DTC B2608 is displayed with DTC B210D for IPDM E/R, first perform the trouble diagnosis for DTC

B210D. Refer to 

SEC-109, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch under the following conditions.

A/T models

-

A/T selector lever is in the P or N position

-

Do not depress brake pedal

M/T models

-

Do not depress clutch pedal

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-79, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001699983

1.

CHECK STARTER RELAY

1.

Turn ignition switch ON.

2.

Check voltage between BCM harness connector and ground under the following condition.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK STARTER RELAY CIRCUIT

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2608

STARTER RELAY

BCM receives starter relay ON signal (CAN) from 
IPDM E/R even if BCM turns the starter relay OFF.

• Harness or connectors 

(starter relay circuit is open or 
shorted.)

• IPDM  E/R

BCM

Ground

Condition

Voltage (V)

Connector

Terminal

M121

52

Ground

A/T selector lever

N or P position

Battery voltage

Other than above

0

Clutch pedal

Not depressed

0

Depressed

Battery voltage

SEC-80

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2608 STARTER RELAY

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector M121 and IPDM E/R connector E6.

3.

Check continuity between IPDM E/R harness connector and BCM harness connector.

4.

Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-34, "Removal and Installation"

.

NO

>> Repair harness or connector.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

IPDM E/R

BCM

Continuity

Connector

Terminal

Connector

Terminal

E6

46

M121

52

Existed

IPDM E/R

Ground

Continuity

Connector

Terminal

E6

46

Ground

Not existed

 

 

 

 

 

 

 

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