Home >> Jaguar >> 2018 >> F-Pace Base >> Repair and Diagnosis (Single Page) >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Audio Head Unit (AHU) - NLI (F-Pace) >> Diagnostic Trouble Code Index DTC: Audio Head Unit (AHU) - NLI >> Description And Operation >> Audio Head Unit (AHU) >> DTC B1D9F-13: Engine Speed Input - Circuit Open >> Possible Causes