Home >> Land Rover >> 2015 >> LR2 Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATC) -- LR2/L359 >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATC) >> Description And Operation >> DTC U3000-41: Control Module - General checksum failure >> Possible Causes