For USA And Canada

B1089 PRE-TEN FRONT LH

Description


DTC B1089 [SHORT] PRE-TEN FRONT LH

For front LH seat belt pre-tensioner, crash is judged by main "G" sensor output signal and sub "G" sensor in front direction.

OPERATION

In the case of a frontal collision that exceeds specified impact level, the diagnosis sensor unit detects the deceleration caused by collision. If restrains the passenger with seat belt easing the stress on passengers chest with load limiter.

STRUCTURE

The restraint system for front seat occupant consists of the pre-tensioner mechanism and load limiter mechanism.

INSTALLATION

Front LH seat belt pre-tensioner is installed on the underside of center pillar with fixed nuts.


DTC Logic


DTC DETECTION LOGIC

With CONSULT
DTC No. Index ("SELF-DIAG [CURRENT]"), ("SELF-DIAG [PAST]" or "TROUBLE DIAG RECORD")






DTC CONFIRMATION PROCEDURE (With CONSULT)


1. INSPECTION START

Turn ignition switch ON.
- GO TO 2.

2. CHECK SELF-DIAG RESULT

Check the screen of CONSULT.
Is malfunctioning part detected?
YES- .
NO-INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

NOTE:
- SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1. INSPECTION START

Turn ignition switch ON.
- GO TO 2.

2. CHECK AIR BAG WARNING LAMP

Check the warning lamp status.
Is malfunctioning part detected?
YES- Testing and Inspection.
NO-INSPECTION END.


Diagnosis Procedure


With CONSULT


WARNING:
- Before servicing, turn ignition switch OFF, disconnect both battery terminals and wait at least 3 minutes. (To discharge backup capacitor.)
- Do not use unspecified tester or other measuring device.

DIAGNOSTIC PROCEDURE


1. CHECK HARNESS CONNECTOR

Check the connection of harness connector.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or 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 FRONT SEAT BELT PRE-TENSIONER

1.Replace front LH seat belt pre-tensioner.
2.Check the screen of CONSULT.
Is the inspection result normal?
YES-INSPECTION END.
NO- Check the intermittent incident. Intermittent Incident.