C05C3
Brake Booster Motor A Supply Circuit
C05C3 is an OBD-II diagnostic trouble code meaning: Brake Booster Motor A Supply Circuit. Common causes: open or short circuit in wiring harness, fuse failure. Estimated repair cost: $56–167.
Symptoms
- Increased brake pedal force
- Reduced braking performance
- ABS/ESP warning light is on
Causes
- Open or short circuit in wiring harness
- Fuse failure
- Relay fault
- Problems with the brake booster motor
How to Fix
- Check fuses and relays
- Diagnose the wiring harness for open/short circuit
- Check the power and ground of the motor
- Replace the amplifier motor if necessary
Related codes
Error C05C3 by Vehicle Brand
FAQ
What does the C05C3 code mean?
C05C3 is an OBD-II diagnostic trouble code that indicates: Brake Booster Motor A Supply Circuit
What causes a C05C3 error code?
The most common causes of C05C3 include: Open or short circuit in wiring harness; Fuse failure; Relay fault; Problems with the brake booster motor.
How do I fix a C05C3 diagnostic trouble code?
To fix C05C3: Check fuses and relays. Diagnose the wiring harness for open/short circuit. Check the power and ground of the motor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C05C3?
Limited driving only, diagnose soon
How much does it cost to fix C05C3?
The estimated repair cost for C05C3 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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