Infiniti G37 Coupe. Manual - part 1152

B210A STEERING LOCK CONDITION SWITCH

SEC-105

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

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J

L

M

A

B

SEC

N

O

P

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair harness or connector.

6.

CHECK BCM OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect steering lock unit 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 8.

NO

>> GO TO 7.

7.

CHECK STEERING LOCK UNIT CIRCUIT-3

1.

Disconnect BCM 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 10.

NO

>> Repair harness or connector.

8.

CHECK IPDM E/R OUTPUT SIGNAL

1.

Connect IPDM E/R connector E5.

2.

Disconnect BCM 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 9.

9.

CHECK STEERING LOCK UNIT CIRCUIT-4

1.

Disconnect IPDM E/R connector E5.

2.

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

3.

Check continuity between steering lock unit harness connector and ground.

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

SEC-106

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B210A STEERING LOCK CONDITION SWITCH

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair harness or connector.

10.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

Steering lock unit

Ground

Continuity

Connector

Terminal

M40

3

Ground

Not existed

B210B STARTER CONTROL RELAY

SEC-107

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

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H

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J

L

M

A

B

SEC

N

O

P

B210B STARTER CONTROL RELAY

Description

INFOID:0000000001700026

Starter control relay, integrated in IPDM E/R, permits the starter relay operation when in N or P position and
the steering is locked or unlocked. It is installed in parallel with the starter relay.

DTC Logic

INFOID:0000000001700027

DTC DETECTION LOGIC

NOTE:
If DTC B210B is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to 

PCS-

16, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the power supply position to start under the following conditions and wait for at least 1 second.

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-107, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001700028

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” for IPDM E/R with CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

SEC-214, "DTC Index"

.

Is the DTC B210B displayed again?

YES

>> Replace IPDM E/R. Refer 

PCS-34, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B210B

START CONT RLY 
ON

IPDM E/R detects that the relay is stuck at ON po-
sition even if the followings condition are met for 
about 1 second.
• Starter control relay ON/OFF signal from BCM
• Clutch interlock or  park neutral position (PNP) 

switch input signal

• IPDM  E/R

SEC-108

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B210C STARTER CONTROL RELAY

B210C STARTER CONTROL RELAY

Description

INFOID:0000000001700029

Starter control relay, integrated in IPDM E/R, permits the starter relay operation when in N or P position and
the steering is locked or unlocked. It is installed in parallel with the starter relay.

DTC Logic

INFOID:0000000001700030

DTC DETECTION LOGIC

NOTE:
• If DTC B210C is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

PCS-16, "DTC Logic"

.

• When IPDM E/R power supply voltage is low (Approx. 7 - 8 V for about 1 second), the DTC B210C may be

detected.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the power supply position to start under the following conditions and wait for at least 1 second.

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-108, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001700031

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” for IPDM E/R with CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

SEC-214, "DTC Index"

.

Is the DTC B210C displayed again?

YES

>> Replace IPDM E/R. Refer to 

PCS-34, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B210C

START CONT RLY 
OFF

IPDM E/R detects that the relay is stuck at OFF po-
sition even if the followings condition are met for 
about 1 second.
• Starter control relay ON/OFF signal from BCM
• Clutch interlock or park neutral position (PNP) 

switch input signal

• IPDM E/R
• Battery