Home >> Land Rover >> 2015 >> LR2 Base >> Repair and Diagnosis (Single Page) >> 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 P0634-68: Control Module Internal Temperature "A" Too High - Event Information >> Possible Causes