Home >> Land Rover >> 2013 >> Range Rover Sport HSE >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Dynamic Response Control Module (DRM) -- Range Rover Sport/L320 >> Diagnostic Trouble Code Index DTC: Dynamic Response Control Module (DRM) >> Description And Operation >> DTC C1B03-19: Directional Control Valve #1 - Circuit current above threshold >> Possible Causes