C1285
Booster Solenoid Circuit Failure
C1285 is an OBD-II diagnostic trouble code meaning: Booster Solenoid Circuit Failure. Common causes: open or short circuit in solenoid circuit, brake booster solenoid malfunction. Estimated repair cost: $56–167.
Symptoms
- Increased brake pedal force
- Check Engine Light Is On
- Unstable operation of the brake system
Causes
- Open or short circuit in solenoid circuit
- Brake booster solenoid malfunction
- Problems with the brake system control unit
- Wiring harness damage
How to Fix
- Check the continuity of the solenoid circuit
- Check solenoid resistance
- Inspect the wiring harness for damage
- Replace solenoid if necessary
- Check the operation of the control unit
Related codes
FAQ
What does the C1285 code mean?
C1285 is an OBD-II diagnostic trouble code that indicates: Booster Solenoid Circuit Failure
What causes a C1285 error code?
The most common causes of C1285 include: Open or short circuit in solenoid circuit; Brake booster solenoid malfunction; Problems with the brake system control unit; Wiring harness damage.
How do I fix a C1285 diagnostic trouble code?
To fix C1285: Check the continuity of the solenoid circuit. Check solenoid resistance. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1285?
Limited driving only, diagnose soon
How much does it cost to fix C1285?
The estimated repair cost for C1285 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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