Home >> Jaguar >> 2012 >> XJ Base >> Repair and Diagnosis (Single Page) >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code (DTC) Index DTC: Adaptive Speed Control Module (ASCM) -- XJ/X351 >> DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Adaptive Speed Control Module (ASCM) >> Description And Operation >> Adaptive Speed Control Module (ASCM) >> U0415-81 Invalid Data Received From Anti-Lock Brake System (ABS) Control Module - Invalid serial data received >> Possible Causes