Infiniti QX56 (Z62). Manual — part 1217

SRC-72

< DTC/CIRCUIT DIAGNOSIS >

B1065, B1070 PASSENGER AIR BAG MODULE

B1065, B1070 PASSENGER AIR BAG MODULE

DTC Logic

INFOID:0000000006220006

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-72, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220007

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-72, "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-11, "Removal and Installation"

2.

Perform DTC confirmation procedure. Refer to

SRC-72, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

DTC

Display contents of

CONSULT-III

DTC detecting condition

Possible cause

B1065
B1070

ASSIST A/B MODULE
[OPEN]

Passenger air bag module circuit is open

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

B1065, B1070 PASSENGER AIR BAG MODULE

SRC-73

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

NO

>> INSPECTION END

SRC-74

< DTC/CIRCUIT DIAGNOSIS >

B1066, B1071 PASSENGER AIR BAG MODULE

B1066, B1071 PASSENGER AIR BAG MODULE

DTC Logic

INFOID:0000000006220008

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-74, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220009

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-74, "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-11, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to

SRC-74, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

DTC

Display contents of CON-

SULT-III

DTC detecting condition

Possible cause

B1066
B1071

ASSIST A/B MODULE
[VB-SHORT]

Passenger air bag module circuit is
shorted to power supply circuit

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

B1066, B1071 PASSENGER AIR BAG MODULE

SRC-75

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

NO

>> INSPECTION END