Home >> Jaguar >> 2017 >> XJR Base >> Repair and Diagnosis (Single Page) >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code (DTC) Index DTC: Anti-Lock Brake System Control Module (Abs) -- XJ/X351 >> DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Anti-Lock Brake System Control Module (ABS) >> Description And Operation >> Anti-Lock Brake System Control Module (Abs) >> C0031-66 Left Front Wheel Speed Sensor - Signal has too many transitions/events >> Possible Causes