Home >> Jaguar >> 2014 >> XK Base, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Diagnostic Trouble Code Index DTC: Engine Control Module (ECM) 5.0L N/A V8 -- XK/X150 >> Diagnostic Trouble Code Index DTC: Engine Control Module (ECM) 5.0L NA V8 - AJ133 >> Description And Operation >> Engine Control Module [Pcm] 5.0L NA V8 - AJ133 >> DTC P0027-77: Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1) - Commanded position not reachable >> Possible Causes