Lexus
Open circuit in the driver airbag squib circuit on a Lexus, usually the steering clock spring. Driver airbag will not deploy.
B1801 fault code: what it means
B1801: Open circuit in the driver airbag squib circuit on a Lexus, usually the steering clock spring. Driver airbag will not deploy.
Usual causes, most likely first
- broken clock spring (spiral cable)
- driver airbag connector loose
- aftermarket steering wheel
B1801 by make
Subaru
Open in driver airbag circuit. Airbag light on; often the clock spring.
Toyota
Open circuit in the driver airbag squib circuit. Usually the steering wheel clock spring; the driver airbag will not deploy.
What the repair usually costs
- Airbag clock spring (spiral cable) replaceNZ$220–NZ$670 · A$230–A$640
Not sure what B1801 means on your car? Ask Credov.
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.