Infiniti QX56 (Z62). Manual - part 1214

SRC-60

< DTC/CIRCUIT DIAGNOSIS >

B1037, B1039, B1041 CRASH ZONE SENSOR

B1037, B1039, B1041 CRASH ZONE SENSOR

DTC Logic

INFOID:0000000006219992

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-60, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006219993

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 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 connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

REPLACE CRASH ZONE SENSOR

1.

Replace crash zone sensor. Refer to 

SR-22, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-60, "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-60, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1037
B1039
B1041

CRASH ZONE SENS1 

Crash zone sensor is malfunctioning

• Disconnection of wiring harness
• Malfunction in crash zone sensor
• Malfunction in air bag diagnosis sensor unit

B1037, B1039, B1041 CRASH ZONE SENSOR

SRC-61

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

NO

>> INSPECTION END

SRC-62

< DTC/CIRCUIT DIAGNOSIS >

B1042, B1043, B1044, B1045, B1046, B1047 DIAGNOSIS SENSOR UNIT

B1042, B1043, B1044, B1045, B1046, B1047 DIAGNOSIS SENSOR UNIT

DTC Logic

INFOID:0000000006219994

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-62, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006219995

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 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 connectors.

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-62, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1042
B1043
B1044
B1045
B1046
B1047

CONTROL UNIT 

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

B1049, B1054 DRIVER AIR BAG MODULE

SRC-63

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1049, B1054 DRIVER AIR BAG MODULE

DTC Logic

INFOID:0000000006219996

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-63, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006219997

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 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.

CHECK SPIRAL CABLE CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect driver air bag module harness connector and combination switch (spiral cable) harness con-
nector.

3.

Check continuity between driver air bag module harness connector and combination switch (spiral cable)
harness connector.

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1049
B1054

DRIVER AIRBAG 
MODULE
[OPEN]

Driver air bag module circuit is open
(including the spiral cable)

• Harness or connectors

(The module circuit is open.)

• Malfunction in driver air bag module
• Malfunction in spiral cable
• Malfunction in air bag diagnosis sensor unit