Home › Land Rover › 2015 › Range Rover Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Deployable TOWBAR Control Module (DTCM) -- Range Rover/L405 › Diagnostic Trouble Code Index DTC: Deployable TOWBAR Control Module (DTCM) › Description And Operation › DTC B1549-12: Electrically Deployable Tow Bar Button - Circuit short to battery › Possible Causes