Home >> Land Rover >> 2014 >> Range Rover Base >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Rear Differential Control Module (RDCM) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Rear Differential Control Module (RDCM) >> Description And Operation >> DTC P186B-11: Differential Lock-up Actuator Brake Control Circuit Low - Circuit short to ground >> Possible Causes