P27F4Gear Shift Lock Solenoid/Actuator A Performance/Stuck On
- Generic OBD-II code · Powertrain
- How the car detects it
- P27F4 concerns the mechanical result of the shift lock, not its wiring: actuator A was commanded but stays in its active state or does not reach the requested position. Whether active means locked or released depends on the design. No manufacturer documents P27F4 publicly. Ford reports the same kind of fault as P0929 from its shifter module: bulletin 25-2045 for 2021-2024 F-150 lists a shifter that will not leave Park or will not stow, with the wrench lamp rather than the MIL. FCA recall 16V-249 explains the risk of a failed interlock solenoid on 2016 Grand Cherokee: the lever could stay trapped in Park or Neutral. Check for binding in the shifter, then supply and ground of the actuator. P27F5 is the opposite stuck state.
- What you may notice
- Selector cannot be moved out of Park despite pressing the brake
- Shift system warning or wrench lamp in the cluster
- Clicking from the shifter with no release
- Likely causes
- LikelyLock pin or actuator binding in the shifter mechanism
- PossibleFaulty gear shift module or its software
- RareImplausible brake pedal signal keeping the lock commanded
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.