Home › Jaguar › 2014 › XK Touring, 2D Convertible › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- XK/X150 › Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) › Description And Operation › Transmission Control Module [TCM] › DTC P0501-81: Vehicle Speed Sensor A Range/Performance - Invalid serial data received › Possible Causes