Home >> Land Rover >> 2015 >> LR2 Base >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> 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 P1889-12: Oil Pressure Pump Performance - Circuit Short To Battery >> Possible Causes