Infiniti QX56 (Z62). Manual - part 1185

SEC-130

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B210A STEERING LOCK UNIT

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

REPLACE STEERING LOCK UNIT

1.

Replace steering lock unit.

2.

Perform the service procedure for steering lock unit replacement. Refer to CONSULT-III Operation Man-
ual NATS-IVIS/NVIS.

>> INSPECTION END

IPDM E/R

Steering lock unit

Continuity

Connector

Terminal

Connector

Terminal

E17

63

M12

8

Existed

65

3

IPDM E/R

Ground

Continuity

Connector

Terminal

E17

63

Not existed

65

B210B STARTER CONTROL RELAY

SEC-131

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B210B STARTER CONTROL RELAY

DTC Logic

INFOID:0000000006226292

DTC DETECTION LOGIC

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

PCS-

28, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press push-button ignition switch under the following conditions to start engine, and wait 1 second or
more.

-

Selector lever: In the P position

-

Brake pedal: Depressed

2.

Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-131, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006226293

1.

CHECK DTC OF BCM

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Perform the trouble diagnosis related to the detected DTC. Refer to 

BCS-57, "DTC Index"

.

NO

>> GO TO 2.

2.

INSPECTION START

1.

Turn ignition switch ON.

2.

Select “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC CONFIRMATION PROCEDURE for DTC B210B. Refer to 

PCS-22, "DTC Index"

.

Is DTC detected?

YES

>> GO TO 3.

NO

>> INSPECTION END

3.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

2.

Perform DTC CONFIRMATION PROCEDURE for DTC B210B. Refer to 

SEC-131, "DTC Logic"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B210B

START CONT RLY ON

When comparing the following items, IPDM E/R detects 
that starter control relay is stuck in the ON position for 
1 second or more.
• Starter control relay signal (CAN) from BCM
• Starter relay status signal (CAN) from BCM
• Starter control relay and starter relay status signal 

(IPDM E/R input)

• Starter control relay control signal (IPDM E/R output)
• P/N position signal input

• Harness or connectors

(CAN communication line is 
open or shorted.

• IPDM E/R
• BCM

SEC-132

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B210C STARTER CONTROL RELAY

B210C STARTER CONTROL RELAY

DTC Logic

INFOID:0000000006226294

DTC DETECTION LOGIC

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

PCS-28, "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.

Press push-button ignition switch under the following conditions to start engine, and wait 1 second or
more.

-

Selector lever: In the P position

-

Brake pedal: Depressed

2.

Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-132, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006226295

1.

CHECK DTC OF BCM

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Perform the trouble diagnosis related to the detected DTC. Refer to 

BCS-57, "DTC Index"

.

NO

>> GO TO 2.

2.

INSPECTION START

1.

Turn ignition switch ON.

2.

Select “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC CONFIRMATION PROCEDURE for DTC B210C. Refer to 

SEC-132, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 3.

NO

>> INSPECTION END

3.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

2.

Perform DTC CONFIRMATION PROCEDURE for DTC B210C. Refer to 

SEC-132, "DTC Logic"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B210C

START CONT RLY OFF

When comparing the following items, IPDM E/R detects 
that starter control relay is stuck in the OFF position for 
1 second or more.
• Starter control relay signal (CAN) from BCM
• Starter relay status signal (CAN) from BCM
• Starter control relay and starter relay status signal (IP-

DM E/R input)

• Starter control relay control signal (IPDM E/R output)
• P/N position signal input

• Harness or connectors

(CAN communication 
line is open or shorted.

• IPDM E/R
• BCM

B210D STARTER RELAY

SEC-133

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B210D STARTER RELAY

DTC Logic

INFOID:0000000006226296

DTC DETECTION LOGIC

NOTE:
If DTC B210D is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to 

PCS-

28, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press push-button ignition switch under the following conditions to start engine, and wait 1 second or
more.

-

Selector lever: In the P position

-

Brake pedal: Depressed

2.

Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-133, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006226297

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Select “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.

3.

Touch “ERASE”.

4.

Perform DTC CONFIRMATION PROCEDURE for DTC B210D. Refer to 

SEC-133, "DTC Logic"

.

Is DTC detected?

YES

>> Replace IPDM E/R. Refer to 

PCS-32, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B210D

STARTER RELAY ON

When comparing the following items, IPDM E/R detects 
that starter relay is stuck in the ON position for 1 second 
or more.
• Starter control relay signal (CAN) from BCM
• Starter relay status signal (CAN) from BCM
• Starter control relay and starter relay status signal 

(IPDM E/R input)

• Starter control relay control signal (IPDM E/R output)
• P/N position signal input

• Harness or connectors

(CAN communication 
line is open or shorted.

• IPDM E/R