Home › Jaguar › 2012 › XJ Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code (DTC) Index DTC: Power Steering Control Module (PSCM) -- XJ/X351 › DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Power Steering Control Module (PSCM) › Description And Operation › Power Steering Control Module (PSCM) › U0001-87 High Speed CAN Communication Bus - Missing message › Possible Causes