B1290

Description

When diagnosis sensor unit detects acceleration that the vehicle rolls over in the lateral direction, pop-up roll bar is activated so that the heads of rear passengers are protected.


DTC Logic


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. Diagnosis With Air Bag Warning Lamp.
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES- .
NO- INSPECTION END


Diagnosis Procedure


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 AIR BAG DIAGNOSIS SENSOR UNIT

1.Replace air bag diagnosis sensor unit. Exploded View.
2.Perform DTC confirmation procedure. .
Is DTC detected?
YES- GO TO 4.
NO- INSPECTION END

4. REPLACE POP-UP ROLL BAR

1.Replace pop-up roll bar RH. Exploded View.
2.Perform DTC confirmation procedure. .
Is DTC detected?
YES- GO TO 1.
NO- INSPECTION END