The airbag control module has detected an open circuit in the front passenger airbag's deployment control — the system can't confirm it would fire correctly in a crash. This is a safety-system code and shouldn't be ignored, even though it has no effect on normal driving.
Symptoms
- Airbag warning light on the dash stays illuminated (steady, not flashing)
- No effect on engine performance or normal driving whatsoever
- The front passenger airbag may not deploy in a collision until this is fixed
Likely causes
- A disconnected or loose connector under the passenger seat or in the dashboard, often after seat removal for cleaning or repair work
- Damaged wiring in the seat harness (a known wear point on vehicles with side airbags integrated into the seat)
- A failed airbag module or clockspring, less commonly
How to diagnose it
- This is not a DIY diagnosis in most cases — airbag system faults should be checked by a workshop with proper safety-system training and tools
- A technician will typically start by checking known common connector points (under-seat connectors, clockspring) before condemning the airbag unit itself
Typical fixes & cost
- Reconnect or repair a loose/damaged connector (workshop diagnosis required)80–250 EUR
- Replace a faulty airbag module or clockspring200–600 EUR
Code names are compiled from open/standardized SAE and ISO references. Explanations, symptoms, causes and fixes are original. Covers generic (P0/C0/B0/U0) codes only — manufacturer-specific codes are planned for a future update.
AS
Reviewed by Artyom SemenovAutomotive Editor · Fact-checked by Yauheni Kapliarchuk, Editor-in-Chief