Home >> Jaguar >> 2017 >> XF S, AWD >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Driver/Passenger Seat Module (DSM/PSM) -- XF/X260 >> Diagnostic Trouble Code Index DTC: Driver/Passenger Seat Module (DSM/PSM) >> Description And Operation >> Driver/Passenger Seat Module (DSM/PSM) >> DTC B1508-23: Digital input Bank '1' switch #2 - Signal Stuck Low >> Possible Causes