Home >> Jaguar >> 2018 >> E-Pace Base >> Repair and Diagnosis (Single Page) >> Quick Lookups >> DTC Index >> General Information - Diagnostic Trouble Code (DTC) Index (HUD - Pcm) -- E-Pace/X540 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: HVAC Control Module (HVAC) (G2164094) >> DTC B13F4-13: Electric (PTC) Heater Control Circuit #1 - Circuit open >> Possible Causes