General Information

Airbag(Event #1)
B250000 Warning lamp Failure - General Information

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 CAN low and high circuit harness.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig.1) C_CAN Low/High Signal Waveform