C012B
High Pressure Accumulator Pressure Sensor
C012B is an OBD-II diagnostic trouble code meaning: High Pressure Accumulator Pressure Sensor. Common causes: pressure sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.
Symptoms
- Loss of engine power
- Increased fuel consumption
- Unstable idling
- Check Engine Light Illuminates
- Engine transition to emergency mode
Causes
- Pressure sensor malfunction
- Open or short circuit in the sensor circuit
- Problems with the sensor connector
- Mechanical damage to the fuel rail
- Sensor contamination
How to Fix
- Check the integrity of the sensor circuit
- Inspect the sensor connector for oxidation
- Check the pressure in the fuel rail
- Replace pressure sensor if necessary
- Clean the fuel system if it is dirty
Related codes
Error C012B by Vehicle Brand
FAQ
What does the C012B code mean?
C012B is an OBD-II diagnostic trouble code that indicates: High Pressure Accumulator Pressure Sensor
What causes a C012B error code?
The most common causes of C012B include: Pressure sensor malfunction; Open or short circuit in the sensor circuit; Problems with the sensor connector; Mechanical damage to the fuel rail.
How do I fix a C012B diagnostic trouble code?
To fix C012B: Check the integrity of the sensor circuit. Inspect the sensor connector for oxidation. Check the pressure in the fuel rail. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C012B?
Limited driving only, diagnose soon
How much does it cost to fix C012B?
The estimated repair cost for C012B is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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