Chevrolet C12B7: High Pressure Accumulator Pressure Sensor Short to Battery

Is your scanner showing Chevrolet C12B7?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Chevrolet C12B7: High Pressure Accumulator Pressure Sensor Short to Battery

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$50-$300
Can I Still Drive?
:
Yes (Short-term only)

What Does The Chevrolet C12B7 Code Mean?

Ignition ON. Ignition voltage is greater than 10 volts.

What Are The Potential Causes Of The Chevrolet C12B7 Code?

  • A short to battery is detected on the sensor signal circuit.
  • A short to ground or open is detected on 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
>>> Dorman 599-705 Remanufactured ABS Control Module for Select Chevrolet/GMC Models (Renewed)
>>> GM Genuine Parts 23158133 Anti-Lock Brake System (ABS) Pressure Modulator Valve Kit

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 563.

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