Home >> Jaguar >> 2011 >> XJ Base >> Repair and Diagnosis >> General Information >> 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) >> C0031-2F Left Front Wheel Speed Sensor - Signal erratic >> Possible Causes