C012A
Brake Master Cylinder Pressure Sensor
C012A is an OBD-II diagnostic trouble code meaning: Brake Master Cylinder Pressure Sensor. Common causes: pressure sensor malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.
Symptoms
- ABS or ESP indicator is on
- Reduced braking performance
- Incorrect operation of the stabilization system
Causes
- Pressure sensor malfunction
- Open or shorted wiring harness
- Sensor connection problems
- Brake ECU malfunction
How to Fix
- Check the sensor connection and the condition of the wiring harness
- Check sensor resistance
- Replace pressure sensor if necessary
- Check and update the ECU firmware
Related codes
Error C012A by Vehicle Brand
FAQ
What does the C012A code mean?
C012A is an OBD-II diagnostic trouble code that indicates: Brake Master Cylinder Pressure Sensor
What causes a C012A error code?
The most common causes of C012A include: Pressure sensor malfunction; Open or shorted wiring harness; Sensor connection problems; Brake ECU malfunction.
How do I fix a C012A diagnostic trouble code?
To fix C012A: Check the sensor connection and the condition of the wiring harness. Check sensor resistance. Replace pressure sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C012A?
Limited driving only, diagnose soon
How much does it cost to fix C012A?
The estimated repair cost for C012A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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