Home >> Jaguar >> 2017 >> XJR L >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- XJ/X351 >> Diagnostic Trouble Code (DTC) Index DTC: Transmission Control Module (TCM) >> Description And Operation >> Transmission Control Module (TCM) >> DTC P0780-93: Shift Error - No operation >> Possible Causes