Home >> Jaguar >> 2013 >> XJ Base, AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code (DTC) Index DTC: Seat Module (Driver/Passenger/Rear Left/Rear Right) -- XJ/X351 >> Diagnostic Trouble Code (DTC) Index DTC: Seat Module (Driver/Passenger/Rear Left/Rear Right) >> Description And Operation >> Seat Module (Driver/Passenger/Rear Left/Rear Right) >> B14FD-31 Bank 'A' Motor #3 Speed/Position Sensor - No Signal >> Possible Causes