Home >> Land Rover >> 2015 >> LR4 HSE, AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Navigation Control Module (NCM) - Extended Markets -- LR4/L319 >> Diagnostic Trouble Code Index DTC: Navigation Control Module (NCM) - Extended Markets >> Description And Operation >> DTC B12A0-11: Auxiliary Input 2 - Circuit short to ground >> Possible Causes