Home >> Jaguar >> 2015 >> XKR-S 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Diagnostic Trouble Code Index DTC: Engine Control Module (ECM) 5.0L SC V8 -- XK/X150 >> Diagnostic Trouble Code Index DTC: Engine Control Module (ECM) 5.0L SC V8 - AJ133 >> Description And Operation >> Engine Control Module [Pcm] 5.0L SC V8 - AJ133 >> DTC P0850-86: Park/Neutral Switch Input Circuit - Signal invalid >> Possible Causes