C05D1
Brake Master Cylinder Piston Position Sensor Supply Circuit
C05D1 is an OBD-II diagnostic trouble code meaning: Brake Master Cylinder Piston Position Sensor Supply Circuit. Common causes: open or short circuit in wiring harness, piston position sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine or ABS light is on
- Incorrect operation of the brake system
- Loss of braking efficiency
Causes
- Open or short circuit in wiring harness
- Piston position sensor malfunction
- Problems with connectors or poor contact
- Malfunction of the brake system control unit
How to Fix
- Check the integrity of the wiring harness and connectors
- Check the voltage on the sensor power circuit
- Replace piston position sensor if necessary
- Reflash or replace the brake system control unit if the problem persists
Related codes
Error C05D1 by Vehicle Brand
FAQ
What does the C05D1 code mean?
C05D1 is an OBD-II diagnostic trouble code that indicates: Brake Master Cylinder Piston Position Sensor Supply Circuit
What causes a C05D1 error code?
The most common causes of C05D1 include: Open or short circuit in wiring harness; Piston position sensor malfunction; Problems with connectors or poor contact; Malfunction of the brake system control unit.
How do I fix a C05D1 diagnostic trouble code?
To fix C05D1: Check the integrity of the wiring harness and connectors. Check the voltage on the sensor power circuit. Replace piston position sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C05D1?
Limited driving only, diagnose soon
How much does it cost to fix C05D1?
The estimated repair cost for C05D1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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