Chevrolet C12B4: Master Cylinder Pressure Sensor Erratic
Is your scanner showing Chevrolet C12B4?
No worries. We'll show you what it means and how to deal with it.
Chevrolet C12B4: Master Cylinder Pressure Sensor Erratic
OVERVIEWWhat Are The Potential Causes Of The Chevrolet C12B4 Code?
- Internal sensor failure is detected.
- A short to battery is detected on the sensor signal circuit.
- A short to ground or open is detected signal circuit.
- Signal is erratic and changes faster than physically allowed.
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> ACDelco 15688634 GM Original Equipment Brake Master Cylinder Diaphragm Position Sensor
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Chevrolet Volt Hybrid DTC – OBDG01 HYBRID Diagnostics Document, page 561.
