Infiniti QX56 (Z62). Manual - part 1222

 

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Infiniti QX56 (Z62). Manual - part 1222

 

 

SRC-92

< DTC/CIRCUIT DIAGNOSIS >

B1086 SEAT BELT PRE-TENSIONER LH

NO

>> INSPECTION END

B1087 SEAT BELT PRE-TENSIONER LH

SRC-93

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1087 SEAT BELT PRE-TENSIONER LH

DTC Logic

INFOID:0000000006220028

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.

 Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-14, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-93, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220029

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3

minutes or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace harness connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3. 

NO

>> Replace wiring harness.

3.

REPLACE SEAT BELT PRE-TENSIONER

1.

Replace seat belt pre-tensioner LH. Refer to 

SR-28, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-93, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4. 

NO

>> INSPECTION END

4.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT 

1.

Replace air bag diagnosis sensor unit. Refer to 

SR-26, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-93, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1087

PRE-TEN FRONT LH
[VB-SHORT]

Seat belt pre-tensioner LH circuit is 
shorted to power supply circuit

• Disconnection of wiring harness and short
• Malfunction in seat belt pre-tensioner LH
• Malfunction in air bag diagnosis sensor unit

SRC-94

< DTC/CIRCUIT DIAGNOSIS >

B1087 SEAT BELT PRE-TENSIONER LH

NO

>> INSPECTION END

B1088 SEAT BELT PRE-TENSIONER LH

SRC-95

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1088 SEAT BELT PRE-TENSIONER LH

DTC Logic

INFOID:0000000006220030

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.

 Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-14, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-95, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220031

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3

minutes or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace harness connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3. 

NO

>> Replace wiring harness.

3.

REPLACE SEAT BELT PRE-TENSIONER

1.

Replace seat belt pre-tensioner LH. Refer to 

SR-28, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-95, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4. 

NO

>> INSPECTION END

4.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT 

1.

Replace air bag diagnosis sensor unit. Refer to 

SR-26, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-95, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1088

PRE-TEN FRONT LH 
[GND-SHORT]

Seat belt pre-tensioner LH circuit is 
shorted to ground

• Disconnection of wiring harness and short
• Malfunction in seat belt pre-tensioner LH
• Malfunction in air bag diagnosis sensor unit

 

 

 

 

 

 

 

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