If the internal door is broken (the plastic shaft is snapped or the foam seal has disintegrated and jammed the door), you have a major repair. The entire dashboard must come out. In this scenario, many owners opt to sell the vehicle or live with the fault (e.g., manually setting the mode to a single compromise position).
: Identifies the specific circuit or component at fault, which in many Land Rover models is the alarm sounder or the communication line leading to it. : This is the failure type byte. In Land Rover's system, land rover b1d1787