Home >> Land Rover >> 2021 >> Discovery R-Dynamic HSE >> Repair and Diagnosis (Single Page) >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Powertrain Control Module (Pcm) - 3.0L Petrol (P033D -- U2300) Discovery/L462 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Powertrain Control Module (Pcm) - 3.0L Petrol (G2861056) >> DTC P174A-02: Gear Lever X Position Sensor Circuit Low - General signal failure >> Possible Causes