What does code P27D2 mean?

Q: What does code P27D2 mean?

Pressure Control Solenoid S Stuck On. P27D2 means the transmission control module (TCM) has detected that the pressure control solenoid S is stuck in its energized or 'on' state, so it cannot regulate hydraulic pressure as commanded. The TCM compares commanded current or duty cycle against the solenoid's actual response and sets this code when the circuit or solenoid remains continuously engaged.

DTC codes / P27xx · Transmission / P27D2

P27D2Pressure Control Solenoid S Stuck On

P27D2 means the transmission control module (TCM) has detected that the pressure control solenoid S is stuck in its energized or 'on' state, so it cannot regulate hydraulic pressure as commanded. The TCM compares commanded current or duty cycle against the solenoid's actual response and sets this code when the circuit or solenoid remains continuously engaged.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaTransmission

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