Home › Land Rover › 2014 › LR2 Base › Repair and Diagnosis › General Information › DTC Index › Diagnostic Trouble Code Index DTC: Rear Differential Control Module (RDCM) -- LR2/L359 › Diagnostic Trouble Code Index DTC: Rear Differential Control Module (RDCM) › Description And Operation › DTC P1889-19: Oil Pressure Pump Performance - Circuit Current Above Threshold › Possible Causes