Home >> Land Rover >> 2017 >> Discovery Sport SE >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Parking Assist Control Module (PACM) -- Discovery Sport/L550 >> Diagnostic Trouble Code Index DTC: Parking Assist Control Module (PACM) >> Description And Operation >> DTC B129F-13: Function LED - Semi-automatic advanced parallel park - Circuit open >> Possible Causes