Home >> Jaguar >> 2013 >> XF 3.0, AWD >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- XF/X250 >> Diagnostic Trouble Code (DTC) Index DTC: Transmission Control Module (TCM) >> Description And Operation >> DTC U0401-02: Invalid Data Received from ECM/PCM A - General signal failure >> Possible Cause