Home >> Jaguar >> 2021 >> E-Pace Base >> Repair and Diagnosis (Single Page) >> Quick Lookups >> DTC Index >> General Information - Diagnostic Trouble Code (DTC) Index (BCM- HCM) -- E-Pace/X540 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Body Control Module [BCM] (C2159737) >> DTC B1D00-23: Left Low Beam - Signal stuck low >> Possible Causes