What does code P236D mean?

Q: What does code P236D mean?

Cylinder 12 Pressure Variation Low. P236D indicates that the powertrain control module has detected an abnormal low pressure variation in cylinder 12, typically derived from a cylinder pressure sensor or ionization measurement during the combustion cycle. The computer compares the expected pressure pulse for that cylinder against what it actually sees and flags the code when the variation falls below the calibrated threshold.

DTC codes / P23xx · Ignition system and misfire / P236D

P236DCylinder 12 Pressure Variation Low

P236D indicates that the powertrain control module has detected an abnormal low pressure variation in cylinder 12, typically derived from a cylinder pressure sensor or ionization measurement during the combustion cycle. The computer compares the expected pressure pulse for that cylinder against what it actually sees and flags the code when the variation falls below the calibrated threshold.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaIgnition system and misfire

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.