Nissan Versa Note. Manual - part 757

B142X COLLISION DETECTION

SRC-91

< DTC/CIRCUIT DIAGNOSIS >

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B142X COLLISION DETECTION

Description

INFOID:0000000009561078

DTC B1209 - B1211 COLLISION DETECTION

The air bag diagnosis sensor unit will set this DTC if it has detected a collision which has resulted in a deploy-

ment of one or more air bags or pre-tensioners. If this DTC is detected after a SRS repair, the air bag diagno-

sis sensor unit has not yet been replaced. This DTC can not be erased.

PART LOCATION

Refer to 

SRC-5, "Component Parts Location"

.

DTC Logic

INFOID:0000000009561079

DTC DETECTION LOGIC 

With CONSULT

DTC CONFIRMATION PROCEDURE (With CONSULT)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check for the DTC on CONSULT.
Is the DTC detected?

YES

>> Refer to 

SRC-91, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009561080

Refer to 

SR-5, "For Frontal Collision"

 or 

SR-7, "For Side and Rollover Collision"

.

CONSULT name

DTC

DTC detecting condition

Repair order

FRONTAL COLLISION DETECTION

B1421

Frontal collision detected. Driver and/or 
front passenger air bag modules are de-
ployed.

Refer to 

SR-5, "For Frontal Collision"

.

SIDE COLLISION DETECTION

B1422

Side collision detected. Curtain air bag 
module and seat belt pre-tensioner are 
deployed.

Refer to 

SR-7, "For Side and Rollover 

Collision"

.

SRC-92

< SYMPTOM DIAGNOSIS >

SRS AIR BAG WARNING LAMP DOES NOT TURN OFF

SYMPTOM DIAGNOSIS

SRS AIR BAG WARNING LAMP DOES NOT TURN OFF

Diagnosis Procedure

INFOID:0000000009682039

1.

CHECK AIR BAG MODULE AND SEAT BELT PRE-TENSIONER     

Check the deployment of air bag module.
Is air bag module deployed?

YES

>> Replace the malfunctioning parts.

NO

>> GO TO 2.

2.

CHECK AIR BAG FUSE

Check 10 A fuse [No.7, located in fuse block (J/B)].
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the fuse.

3.

CHECK HARNESS CONNECTOR

Check the harness connector.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace harness connectors.

4.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace wiring harness.

5.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace air bag diagnosis sensor unit. Refer to 

SR-29, "Removal and Installation"

.

2. Check air bag warning lamp operation.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 6.

6.

REPLACE COMBINATION METER

1. Replace combination meter. Refer to 

MWI-54, "Removal and Installation"

.

2. Check air bag warning lamp operation.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 1.

SRS AIR BAG WARNING LAMP DOES NOT TURN ON

SRC-93

< SYMPTOM DIAGNOSIS >

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SRS AIR BAG WARNING LAMP DOES NOT TURN ON

Diagnosis Procedure

INFOID:0000000009682040

1.

CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUIT

Check combination meter unit power supply and ground circuit. Refer to 

MWI-42, "COMBINATION METER :

Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts. 

2.

CHECK HARNESS CONNECTOR

Check the harness connector.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace harness connectors.

3.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace wiring harness.

4.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

Disconnect air bag diagnosis sensor unit connector and turn ignition switch ON.
Does air bag warning lamp turn ON?

YES

>> Replace air bag diagnosis sensor unit. Refer to 

SR-29, "Removal and Installation"

.

NO

>> Replace combination meter. Refer to 

MWI-54, "Removal and Installation"

.

SRC-94

< SYMPTOM DIAGNOSIS >

SEAT BELT WARNING SYSTEM

SEAT BELT WARNING SYSTEM

Seat Belt Warning System Does Not Function

INFOID:0000000009643001

1.

SEAT BELT WARNING LIGHT

Turn ignition switch ON.
Does the seat belt warning lamp come ON?

YES

>> GO TO 2.

NO

>> • Check 10A fuse [No. 8, located in the fuse block (J/B)].

• Check seat belt buckle switch (driver seat).

• Check harness between combination meter and seat belt buckle switch (driver seat).

• Check combination meter. Refer to 

MWI-8, "METER SYSTEM : Fail-safe"

.

2.

SEAT BELT BUCKLE (DRIVER SEAT)

Fasten the seat belt buckle (driver seat).
Does the seat belt warning lamp go OFF?

YES

>> GO TO 3.

NO

>> • Check seat belt buckle switch (driver seat).

• Check harness between combination meter and seat belt buckle switch (driver seat).

3.

OCCUPANT CLASSIFICATION SYSTEM

Have a helper sit in the passenger seat.
Does the seat belt warning lamp go ON?

YES

>> GO TO 4.

NO

>> • Check occupant classification system. Refer to 

SRC-11, "OCCUPANT CLASSIFICATION SYS-

TEM : System Description"

.

• Check harness between occupant classification control unit and air bag diagnosis sensor unit.

4.

SEAT BELT BUCKLE (PASSENGER SEAT)

Fasten the seat belt buckle (passenger seat).
Does the seat belt warning lamp go OFF?

YES

>> System OK.

NO

>> • Check seat belt buckle switch (passenger seat).

• Check harness between seat belt buckle switch (passenger seat) and air bag diagnosis sensor

unit.

• Replace air bag diagnosis sensor unit. Refer to 

SR-29, "Removal and Installation"

.