LR3/Disco 3
The occupant detection system can only determine if the front passenger seat is occupied or unoccupied. The occupant
detection system consists of a pressure sensor installed between the foam padding and the cover of the front passenger
seat cushion.
The pressure sensor incorporates a number of load cells connected in series and embedded in a plastic film. Weight on
the pressure sensor increases the resistance of the circuit.
The instrument cluster supplies a reference voltage to the pressure sensor and measures the current draw to determine
the occupancy status. From the occupancy status, and the status of the front passenger safety belt (received from the
RCM (restraints control module) on the high speed CAN (controller area network) bus), the instrument cluster determines
the belt minder status.
Occupant Classification System (NAS Only)
Item Part Number
Description
1
-
Seat cushion
2
-
Pressure sensor