Home › Land Rover › 2014 › LR4 Base, 4WD › Repair and Diagnosis › General Information › DTC Index › Diagnostic Trouble Code Index DTC: General Proximity Sensor Module (GPSM) -- LR4/L319 › Diagnostic Trouble Code Index DTC: General Proximity Sensor Module (GPSM) › Description Of Operation › DTC U0300-57: Internal Control Module Software Incompatibility - Invalid/incomplete software component › Possible Causes