C12B2
ABS Master Cylinder Pressure Sensor Circuit Open or Short To Ground
C12B2 is an OBD-II diagnostic trouble code meaning: ABS Master Cylinder Pressure Sensor Circuit Open or Short To Ground. Common causes: broken wiring harness, short circuit to ground. Estimated repair cost: $56–167.
Symptoms
- The ABS indicator on the dashboard is on
- Reduced braking performance
- Activating ABS under normal conditions
Causes
- Broken wiring harness
- Short circuit to ground
- Pressure sensor malfunction
- Poor contact in connectors
How to Fix
- Check the integrity of the wiring harness
- Check the resistance of the pressure sensor
- Inspect connectors and contacts
- Replace pressure sensor if necessary
Related codes
FAQ
What does the C12B2 code mean?
C12B2 is an OBD-II diagnostic trouble code that indicates: ABS Master Cylinder Pressure Sensor Circuit Open or Short To Ground
What causes a C12B2 error code?
The most common causes of C12B2 include: Broken wiring harness; Short circuit to ground; Pressure sensor malfunction; Poor contact in connectors.
How do I fix a C12B2 diagnostic trouble code?
To fix C12B2: Check the integrity of the wiring harness. Check the resistance of the pressure sensor. Inspect connectors and contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C12B2?
Limited driving only, diagnose soon
How much does it cost to fix C12B2?
The estimated repair cost for C12B2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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