Home >> Jaguar >> 2012 >> XKR 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 P0784-77: 4-5 Shift - Commanded position not reachable >> Possible Causes