Infiniti G35 (V35) Sedan. Manual - part 1183

B261A PUSH-BUTTON IGNITION SWITCH

SEC-87

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

NO

>> GO TO 3.

3.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

1.

Disconnect BCM harness connector.

2.

Check continuity between push-button ignition switch harness connector and BCM harness connector.

3.

Check continuity between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

4.

CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 2

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch harness connector and BCM harness connector.

3.

Check voltage between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

CHECK PUSH-BUTTON IGNITION SWITCH

1.

Disconnect IPDM E/R harness connector.

2.

Check continuity between push-button ignition switch harness connector and IPDM E/R harness connec-
tor.

3.

Check continuity between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

Push-button ignition switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

M50

4

M122

89

Existed

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M50

4

Ground

Not existed

Push-button ignition switch

Ground

Voltage (V)

Connector

Terminal

M50

4

Ground

Battery voltage

Push-button ignition switch

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M50

4

E5

28

Existed

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M50

4

Ground

Not existed

SEC-88

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B261E VEHICLE TYPE

B261E  VEHICLE TYPE

Description

INFOID:0000000000961425

There are two types of vehicle.
• HEV
• Conventional

DTC Logic

INFOID:0000000000961426

DTC DETECTION LOGIC

NOTE:
• If DTC B261E is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-35, "DTC Logic"

.

• If DTC B261E is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-36, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-88, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000000961427

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-88, "DTC Logic"

.

Is the 1st trip DTC B261E displayed again?

YES

>> Replace BCM. Refer to 

BCS-79, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B261E

VEHICLE TYPE

Difference of BCM configration

• BCM

B2108 STEERING LOCK RELAY

SEC-89

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2108 STEERING LOCK RELAY

Description

INFOID:0000000000961428

The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN communication.
IPDM E/R turns the steering lock relay ON and transmits the release of the steering to BCM.

DTC Logic

INFOID:0000000000961429

DTC DETECTION LOGIC

NOTE:
• If DTC B2108 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-35, "DTC Logic"

.

• If DTC B2108 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-36, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch under the following conditions and wait for at least 1 second.

-

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

-

Do not depress the brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-89, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000000961430

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 10A fuse (No. 48, located in IPDM E/R).

Is the inspection normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-33, "Removal and Installation"

.

NO

>>

Check the following.

• Harness for open or short between IPDM E/R and battery
• Fuse

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2108

STRG LCK RELAY 
ON

IPDM E/R detects that the relay is stuck at ON po-
sition for about 1 second even if the IPDM E/R re-
ceives steering lock relay ON/OFF signal from 
BCM.

• IPDM  E/R

SEC-90

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2109 STEERING LOCK RELAY

B2109 STEERING LOCK RELAY

Description

INFOID:0000000000961431

The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN communication.
IPDM E/R turns the steering lock relay ON and transmits the release of the steering to BCM.

DTC Logic

INFOID:0000000000961432

DTC DETECTION LOGIC

NOTE:
• If DTC B2109 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-35, "DTC Logic"

.

• If DTC B2109 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-36, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch under the following conditions and wait for at least 1 second.

-

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

-

Do not depress the brake pedal

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-70, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000000961433

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 10A fuse (No. 48, located in IPDM E/R).

Is the inspection normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-33, "Removal and Installation"

.

NO

>>

Check the following.

• Harness for open or short between IPDM E/R and battery
• Fuse

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2109

STRG LCK RELAY 
OFF

IPDM E/R detects that the relay is stuck at OFF po-
sition for about 1 second even if the IPDM E/R re-
ceives steering lock relay ON/OFF signal from 
BCM.

• IPDM E/R