P235C: Cylinder 11 Pressure Sensor Circuit
Standardized SAE J2012 code · P23xx — Ignition system and misfire
What does P235C mean?
A general electrical fault on the cylinder 11 combustion pressure sensor — used on engines with closed-loop combustion control (e.g. some Volvo and BMW direct-injection diesels) to measure cylinder pressure directly via a sensor at the glow plug or injector position.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Open circuit in sensor or wiring
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P235C on the same make and model first.
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