Home >> Jaguar >> 2014 >> XK Base, 2D Convertible >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Pedestrian Protection System (Ics) -- XK/X150 >> Diagnostic Trouble Code Index DTC: Pedestrian Protection System (Ics) >> Description And Operation >> DTC Pedestrian Protection System Control Module (PPSCM) >> DTC P1934-29: Vehicle Speed Signal - Signal invalid >> Possible Causes