Component Location
General Description

Air bag warning lamp is located at cluster

When key is in 'ignition on' position, SRSCM performs diagnosis of overall air bag system.If there's no fault, air bag.

Warning lamp in cluster flickers for a whlie and then goes out.

SRSCM measures voltage of out terminal of warning lamp to check if warnning lamp is operated in accordance with signal SRSCM sends.

DTC Description

The SRSCM sets DTC B250000 if there is an open circuit or short to ground in air bag circuit harness.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

•

Check voltage

1.

Burnt-out fuse.

2.

Burnt-out warning lamp.

3.

Open circuit in warning lamp harness.

4.

Short circuit in warning lamp harness.

5.

Faulty SRSCM.

Enable Conditions

•

Ignition "ON"

Threshold Value

•

Warning lamp failure Ground short or Battery short

Diagnostic Time

Qualification

•

More than 1s (100msx10)

De-Qualification

•

More than 2 sec

Diagnostic Circuit Diagram
note
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