Home › Land Rover › 2015 › 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 U2101-56: Control Module Configuration Incompatible - Invalid/incomplete configuration › Possible Causes