Home >> Jaguar >> 2014 >> XF Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Diagnostic Trouble Code (DTC) Index DTC: Instrument Cluster (IPC) -- XF/X250 >> Diagnostic Trouble Code (DTC) Index DTC: Instrument Cluster (IPC) >> Description And Operation >> DTC P0635-44: Power Steering Control Circuit - Data memory failure >> Possible Causes