Home >> Land Rover >> 2014 >> Range Rover Base >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> 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 C1004-77: Right Power Running Board Deploy - Commanded position not reachable >> Possible Causes