What does code P27F4 mean?

Q: What does code P27F4 mean?

Gear Shift Lock Solenoid/Actuator A Performance/Stuck On. P27F4 indicates that the transmission control module (TCM) has detected a performance fault or a stuck-on condition in the gear shift lock solenoid or actuator circuit, which prevents the shifter from moving out of Park when commanded. The computer monitors the solenoid's electrical current and response time, and it sets this code when the actuator fails to release, releases too slowly, or remains energized when it should be off.

DTC codes / P27xx · Transmission / P27F4

P27F4Gear Shift Lock Solenoid/Actuator A Performance/Stuck On

P27F4 indicates that the transmission control module (TCM) has detected a performance fault or a stuck-on condition in the gear shift lock solenoid or actuator circuit, which prevents the shifter from moving out of Park when commanded. The computer monitors the solenoid's electrical current and response time, and it sets this code when the actuator fails to release, releases too slowly, or remains energized when it should be off.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.