B1C1A
Passenger Active Headrest Control Circuit Open
B1C1A is an OBD-II diagnostic trouble code meaning: Passenger Active Headrest Control Circuit Open. Common causes: broken or damaged wiring harness, headrest solenoid valve malfunction. Estimated repair cost: $56–167.
Symptoms
- The security system malfunction indicator is on
- Active passenger head restraint does not respond to test commands
- Error B1C1A persists after reset
Causes
- Broken or damaged wiring harness
- Headrest solenoid valve malfunction
- Problems with the security control unit
- Corrosion or poor contact in connectors
How to Fix
- Check the integrity of the wiring harness in the headrest area
- Test control circuit resistance
- Check the operation of the solenoid valve
- Clean or replace damaged connectors
- If necessary, replace faulty components
Related codes
FAQ
What does the B1C1A code mean?
B1C1A is an OBD-II diagnostic trouble code that indicates: Passenger Active Headrest Control Circuit Open
What causes a B1C1A error code?
The most common causes of B1C1A include: Broken or damaged wiring harness; Headrest solenoid valve malfunction; Problems with the security control unit; Corrosion or poor contact in connectors.
How do I fix a B1C1A diagnostic trouble code?
To fix B1C1A: Check the integrity of the wiring harness in the headrest area. Test control circuit resistance. Check the operation of the solenoid valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1C1A?
Do not drive — repair immediately
How much does it cost to fix B1C1A?
The estimated repair cost for B1C1A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat