Home >> Jaguar >> 2018 >> 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: Deployable TOWBAR Control Module [DTCM] (G2163834) >> DTC B1548-23: Trailer Light Test Button - Signal stuck low >> Possible Causes