Home >> Land Rover >> 2013 >> Range Rover Sport HSE >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATC) -- Range Rover Sport/L320 >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATC) >> Description And Operation >> DTC U1A14-49 CAN Initialization failure - Internal electronic failure >> Possible Causes