Home >> Land Rover >> 2013 >> Range Rover HSE >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Driver/Passenger Door Module (DDM/PDM) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Driver / Passenger Door Module (DDM / PDM) >> Description And Operation >> DTC B1DE9-87: Clear Exit Detection System LED Unit - Missing message >> Possible Causes