P236C
Cylinder 12 Pressure Too High
P236C is an OBD-II diagnostic trouble code meaning: Cylinder 12 Pressure Too High. Common causes: malfunction of the fuel injector of cylinder 12, problems with the ignition system in cylinder 12. Estimated repair cost: $17–111.
Symptoms
- Loss of engine power
- The engine runs rough
- Increased fuel consumption
- Detonation knocks
- Check Engine light comes on
Causes
- Malfunction of the fuel injector of cylinder 12
- Problems with the ignition system in cylinder 12
- Mechanical damage to the cylinder or piston
- Incorrect operation of the valves of cylinder 12
- Malfunction of the cylinder pressure sensor
How to Fix
- Check the condition of the fuel injector of cylinder 12
- Diagnose the ignition system of cylinder 12
- Check compression in cylinder 12
- Inspect valves and cylinder mechanical components
- Check the operation of the pressure sensor
Related codes
Error P236C by Vehicle Brand
FAQ
What does the P236C code mean?
P236C is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Pressure Too High
What causes a P236C error code?
The most common causes of P236C include: Malfunction of the fuel injector of cylinder 12; Problems with the ignition system in cylinder 12; Mechanical damage to the cylinder or piston; Incorrect operation of the valves of cylinder 12.
How do I fix a P236C diagnostic trouble code?
To fix P236C: Check the condition of the fuel injector of cylinder 12. Diagnose the ignition system of cylinder 12. Check compression in cylinder 12. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P236C?
Do not drive — repair immediately
How much does it cost to fix P236C?
The estimated repair cost for P236C is $17–111. Actual cost depends on your vehicle, location, and labor rates.
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