Infiniti QX56 (Z62). Manual - part 1242

SRC-172

< DTC/CIRCUIT DIAGNOSIS >

B1201 CURTAIN AIR BAG MODULE LH

NO

>> INSPECTION END

B1202, B1203, B1204, B1205, B1206, B1207 DIAGNOSIS SENSOR UNIT

SRC-173

< DTC/CIRCUIT DIAGNOSIS >

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B1202, B1203, B1204, B1205, B1206, B1207 DIAGNOSIS SENSOR UNIT

DTC Logic

INFOID:0000000006220126

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-173, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220127

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 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-173, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

NO

>> INSPECTION END

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1202
B1203
B1204 
B1205
B1206
B1207

CONTROL UNIT 

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

SRC-174

< DTC/CIRCUIT DIAGNOSIS >

B1209 FRONTAL COLLISION DETECTION

B1209 FRONTAL COLLISION DETECTION

Description

INFOID:0000000006220128

The air bags and seat belt pre-tensioners for driver and passenger are activated by the air bag diagnosis sen-
sor unit signal transmitted at the time of the frontal collision.

DTC Logic

INFOID:0000000006220129

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-174, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220130

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.

PERFORM COLLISION DIAGNOSIS

Perform collision diagnosis.Refer to 

SR-5, "FOR FRONTAL COLLISION : When SRS is activated in a colli-

sion"

 or 

SR-6, "FOR FRONTAL COLLISION : When SRS is not activated in a collision"

.

Is collision diagnosis complete?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

FINAL INSPECTION

Perform “AIR BAG” Self Diagnostic Result.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis of applicable DTC.Refer to 

SRC-22, "DTC Index"

.

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1209

FRONTAL COLLI-
SION DETECTION

Seat belt pre-tensioner, driver side air bag and passen-
ger air bag are deployed

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B1210 SIDE COLLISION DETECTION

SRC-175

< DTC/CIRCUIT DIAGNOSIS >

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B1210 SIDE COLLISION DETECTION

Description

INFOID:0000000006220131

The side air bag and curtain air bag are activated by the air bag diagnosis sensor unit signal transmitted at the
time of side collision.

DTC Logic

INFOID:0000000006220132

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-175, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220133

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.

PERFORM COLLISION DIAGNOSIS

Perform collision diagnosis.Refer to 

SR-7, "FOR SIDE AND ROLLOVER COLLISION : When SRS is activated

in a collision"

 or 

SR-8, "FOR SIDE AND ROLLOVER COLLISION : When SRS is not activated in a collision"

.

Iscollision diagnosis complete?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

FINAL INSPECTION

Perform “AIR BAG” Self Diagnostic Result.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Peform diagnosis of applicable DTC.Refer to 

SRC-22, "DTC Index"

.

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1210

SIDE COLLISION 
DETECTION

Side air bag and curtain air bag are deployed

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