Infiniti QX56 (Z62). Manual - part 1243

SRC-176

< DTC/CIRCUIT DIAGNOSIS >

B1211 ROLLOVER DETECTION

B1211 ROLLOVER DETECTION

Description

INFOID:0000000006220134

The seat belt pre-tensioner, door-mounted curtain air bag and pop-up roll bar are activated by the air bag diag-
nosis sensor unit signal at the time of rollover.

DTC Logic

INFOID:0000000006220135

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Perform “AIR BAG” Self Diagnostic Result.

 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-176, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220136

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

B1211

ROLLOVER DETECTION

Seat belt pre-tensioner and curtain air bag module are 
deployed because of rollover detection

—

B1212, B1213, B1214 SATELLITE SENSOR RH

SRC-177

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1212, B1213, B1214 SATELLITE SENSOR RH

DTC Logic

INFOID:0000000006220137

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-177, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220138

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 FRONT SATELLITE SENSOR

1.

Replace front satellite sensor RH. Refer to 

SR-24, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-177, "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-177, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1212
B1213
B1214

RH1 SAT-SENS 

Front satellite sensor RH is malfunctioning

• Disconnection of wiring harness
• Malfunction in front satellite sensor RH
• Malfunction in air bag diagnosis sensor unit

SRC-178

< DTC/CIRCUIT DIAGNOSIS >

B1212, B1213, B1214 SATELLITE SENSOR RH

NO

>> INSPECTION END

B1215, B1216, B1217 SATELLITE SENSOR LH

SRC-179

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1215, B1216, B1217 SATELLITE SENSOR LH

DTC Logic

INFOID:0000000006220139

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-179, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220140

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 FRONT SATELLITE SENSOR

1.

Replace front satellite sensor LH. Refer to 

SR-24, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-179, "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-179, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1215
B1216
B1217

LH1 SAT-SENS 

Front satellite sensor LH is malfunctioning

• Disconnection of wiring harness
• Malfunction in front satellite sensor LH
• Malfunction in air bag diagnosis sensor unit