What does code P27AD mean?

Q: What does code P27AD mean?

Pressure Control Solenoid G Data Incompatible. P27AD indicates that the transmission control module (TCM) has detected an incompatible or implausible data signal from the pressure control solenoid G circuit, which is responsible for regulating hydraulic pressure inside the transmission. The computer compares the solenoid's commanded state with actual pressure sensor feedback and flags the code when the two do not agree within an acceptable margin.

DTC codes / P27xx · Transmission / P27AD

P27ADPressure Control Solenoid G Data Incompatible

P27AD indicates that the transmission control module (TCM) has detected an incompatible or implausible data signal from the pressure control solenoid G circuit, which is responsible for regulating hydraulic pressure inside the transmission. The computer compares the solenoid's commanded state with actual pressure sensor feedback and flags the code when the two do not agree within an acceptable margin.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

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.