C05D1
Brake Master Cylinder Piston Position Sensor Supply Circuit
Generic fault on master cylinder piston position sensor supply circuit.
Generic fault on master cylinder piston position sensor supply circuit.
Common causes
- high
Supply wiring fault
One of the most commonly reported causes for this code — check this first.
Typical part cost: $90-660
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does C05D1 mean?
C05D1 means "Brake Master Cylinder Piston Position Sensor Supply Circuit". It is a generic OBD-II code that points to a fault in the chassis.
What are the most common causes of C05D1?
supply wiring fault — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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