Home >> Jaguar >> 2021 >> I-Pace SE >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Common Specs & Procedures >> General Information - Diagnostic Trouble Code (DTC) Index (BCM - HCM) -- I-Pace/X590 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Headlamp Control Module (HCM) (G2010808) >> DTC B124B-4B: Left Daytime Running Light - Over temperature >> Possible Causes