Infiniti QX56 (Z62). Manual - part 1218

 

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Infiniti QX56 (Z62). Manual - part 1218

 

 

SRC-76

< DTC/CIRCUIT DIAGNOSIS >

B1067, B1072 PASSENGER AIR BAG MODULE

B1067, B1072 PASSENGER AIR BAG MODULE

DTC Logic

INFOID:0000000006220010

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-76, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220011

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 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-76, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4.

NO

>> INSPECTION END

4.

REPLACE PASSENGER AIR BAG MODULE

1.

Replace passenger air bag module. Refer to 

SR-17, "Removal and Installation"

2.

Perform DTC confirmation procedure. Refer to 

SRC-76, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1067
B1072

ASSIST A/B MODULE 
[GND-SHORT]

Passenger air bag module circuit is 
shorted to ground

• Disconnection of wiring harness and short
• Malfunction in passenger air bag module
• Malfunction in air bag diagnosis sensor unit

B1067, B1072 PASSENGER AIR BAG MODULE

SRC-77

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

NO

>> INSPECTION END

SRC-78

< DTC/CIRCUIT DIAGNOSIS >

B1068, B1073 PASSENGER AIR BAG MODULE

B1068, B1073 PASSENGER AIR BAG MODULE

DTC Logic

INFOID:0000000006220012

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-78, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220013

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 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-78, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4.

NO

>> INSPECTION END

4.

REPLACE PASSENGER AIR BAG MODULE

1.

Replace passenger air bag module. Refer to 

SR-17, "Removal and Installation"

2.

Perform DTC confirmation procedure. Refer to 

SRC-78, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1068
B1073

ASSIST A/B MODULE 
[SHORT]

Passenger air bag module circuits   are 
shorted to each other

• Disconnection of wiring harness and short
• Malfunction in passenger air bag module
• Malfunction in air bag diagnosis sensor unit

B1068, B1073 PASSENGER AIR BAG MODULE

SRC-79

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

NO

>> INSPECTION END

 

 

 

 

 

 

 

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