What does code P2C9D mean?

DTC codes / P2Cxx · Hybrid propulsion / P2C9D

P2C9DFuel Pressure Regulator C Exceeded Control Limits - Pressure Too High

P2C9D indicates that the powertrain control module (PCM) has commanded the fuel pressure regulator circuit for 'C' to a specific pressure, but the actual fuel pressure remained higher than the commanded value beyond an acceptable margin. The PCM monitors the regulator's control circuit and the resulting fuel pressure, and it sets this code when the pressure stays too high despite the regulator being told to reduce it.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaHybrid propulsion

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