B1B02 fault code: what it means

B1B02: Driver airbag squib 1 circuit open (JK Wrangler). Driver airbag may not deploy; clockspring is the usual cause.

Body · Safety risk

Usual causes, most likely first

failed clockspring
airbag connector
airbag module

B1B02 by make

Jeep

Driver airbag squib 1 circuit open (JK Wrangler). Driver airbag may not deploy; clockspring is the usual cause.

Usual causes: failed clockspring; airbag connector; airbag module

Mitsubishi

Driver airbag (1st squib) circuit open. Airbag light on; often the clock spring.

Usual causes: clock spring; connector fault; driver airbag module

What the repair usually costs

Airbag clock spring (spiral cable) replaceNZ$220–NZ$670 · A$230–A$640

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Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.