Home >> Land Rover >> 2015 >> LR2 Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Seats >> Diagnostic Trouble Code Index DTC: Driver/Passenger Seat Control Module (DSM/PSM) -- LR2/L359 >> Diagnostic Trouble Code Index DTC: Driver/Passenger Seat Control Module (DSM/PSM) >> Description And Operation >> DTC B1B87-: 31 Seat Height Motor Speed/Position Sensor - No signal >> Possible Causes