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P236C: The cylinder 12 pressure is above normal

The cylinder 12 pressure is above normal. It may be the part itself, its connector or the wiring.

Code P236C at a glance
CodeP236C
SystemEngine and transmission
GroupP23xx, Ignition coils and engine
TypeGeneric: it means the same on every make

How to read and clear P236C with Final OBD

Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P236C with its description and whether it’s confirmed, pending or permanent.

If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.

Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.

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What does code P236C mean?

The cylinder 12 pressure is above normal. It may be the part itself, its connector or the wiring.

How do you clear P236C?

With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P236C comes back.