Infiniti G35 (V35) Sedan. Manual - part 1182

B2617 STARTER RELAY CIRCUIT

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[INTELLIGENT KEY SYSTEM]

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B2617 STARTER RELAY CIRCUIT

Description

INFOID:0000000000961416

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:0000000000961417

DTC DETECTION LOGIC

NOTE:
• If DTC B2617 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-35, "DTC Logic"

.

• If DTC B2617 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-36, "DTC Logic"

.

• If DTC B2617 is displayed with DTC B2611, first perform the trouble diagnosis for DTC B2611. Refer to

PCS-52, "DTC Logic"

.

• If DTC B2617 is displayed with DTC B210E, first perform the trouble diagnosis for DTC B210E. Refer to

SEC-98, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON 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-83, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000000961418

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

1.

Turn ignition switch OFF.

2.

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

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2617

STARTER RELAY 
CIRCUIT

An immediate operation of starter relay is request-
ed by BCM, but there is no response for more than 
1 second

• Harness or connectors

(Starter relay circuit is open or short-
ed.)

• 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

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< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2617 STARTER RELAY CIRCUIT

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-33, "Removal and Installation"

.

NO

>> Repair harness or connector.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "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

B2619 BCM

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B2619 BCM

Description

INFOID:0000000000961419

BCM requests 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:0000000000961420

DTC DETECTION 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 brake pedal

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-85, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000000961421

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-85, "DTC Logic"

.

Is the DTC B2619 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

B2619

BCM

BCM detects a mismatch between the power sup-
plied to the steering lock unit and the feedback for 
one second or more.

• BCM

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< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B261A PUSH-BUTTON IGNITION SWITCH

B261A PUSH-BUTTON IGNITION SWITCH

Description

INFOID:0000000000961422

BCM transmits the change in the power supply position with the push-button ignition switch to IPDM E/R via
the CAN communication. IPDM E/R transmits the power supply position status via CAN communication to
BCM.

DTC Logic

INFOID:0000000000961423

DTC DETECTION LOGIC

NOTE:
• If DTC B261A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-35, "DTC Logic"

.

• If DTC B261A 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 brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-86, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000000961424

1.

INSPECTION START

Check the case in which DTC is detected.
• Case1: It is detected when push-button ignition switch is pressed for 1 second
• Case2: It is detected after Intelligent Key is inserted into key slot and push-button ignition switch is pressed

In which case is DTC detected?

Case1 >> GO TO 2.
Case2 >> GO TO 4.

2.

CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch harness connector and IPDM E/R harness connector E5.

3.

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

Is the inspection result normal?

YES

>> GO TO 6.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B261A

PUSH-BUTTON 
IGNITION 
SWITCH

BCM detects the mismatch between the following for 
1 second or more
• Power supply position with push-button ignition 

switch

• Power supply position from IPDM E/R (CAN)

• Harness or connectors

(Push-button ignition switch circuit is 
open or shorted)

• Between BCM and push-button igni-

tion switch

• Between IPDM E/R and push-button 

ignition switch

Push-button ignition switch

Ground

Voltage (V)

Connector

Terminal

M50

4

Ground

Battery voltage