Home >> Land Rover >> 2023 >> Range Rover Velar HST >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: HVAC Control Module (HVAC) -- Range Rover Velar/L560 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: HVAC Control Module (HVAC) (G2164849) >> B1DBD-12: Battery Heater Coolant Diverter Valve - Circuit short to battery >> Possible Causes