Shown model 222.0 |
N32/5 | Right rear seat control unit |
P91.29-2832-04
Location
The right rear seat control unit is located in the right rear of the trunk.
Task
The right rear seat control unit has the following tasks:
Control of the seat adjustment
Storing of the memory settings for the rear seat
Actuation of collision avoidance
The tasks are subdivided as follows:
Read in sensors and signals
Evaluation of input factors
Actuation of components
Read in sensors and signals
The input factors are read in via the following connections:
Direct line
Interior CAN (CAN B)
Direct line
The right rear seat control unit reads in the signals from the following sensors via direct lines:
Right rear seat head restraint height adjustment Hall sensor (M18/14b1)
Right rear seat head restraint inclination adjustment Hall sensor (M18/16b1)
Right rear seat cushion inclination adjustment Hall sensor (M18/20b1)
Right rear seat leg rest inclination adjustment Hall sensor (M18/24b1) (with code 453 (Rear reclining seats))
Right rear seat leg rest fore/aft adjustment Hall sensor (M18/26b1) (with code 453 (Rear reclining seats))
Right rear seat backrest inclination adjustment Hall sensor (M28/11b1)
Center rear seat head restraint height adjustment Hall sensor (M53/3b1) (except code 224 (Design individual rear seat system))
Center rear seat head restraint height adjustment switch (S52/6) (except code 224 (Design individual rear seat system))
Interior CAN
The signals read in by the right rear seat control unit via the interior CAN include the following:
Seat adjustment request
Request for storing/moving to memory position
Request for seat heater (with code 402 (Rear comfort seats, incl. seat heating and seat ventilation) or code P43 (Rear seat comfort package))
Request for seat ventilation (with code 402 (Rear comfort seats, incl. seat heating and seat ventilation))
Request for PRE-SAFE® positioning function (with code 305 (Rear PRE-SAFE))
Evaluation of input factors
The read in input factors are evaluated by the right rear seat control unit. The motors for seat adjustment are actuated via integrated relays.
Actuation of components
The actuation of the components takes place via the following connections:
Direct line
Right rear seat LIN (LIN B21) (with code P43 (Rear seat comfort package))
Interior CAN
Direct line
The right rear seat control unit actuates the following component parts via direct lines:
Right rear seat head restraint height adjustment motor (M18/14)
Right rear seat head restraint inclination adjustment motor (M18/16)
Right rear seat cushion inclination adjustment motor (M18/20)
Right rear seat leg rest inclination adjustment seat adjustment motor (M18/24) (with code 453 (Rear reclining seats))
Right rear seat leg rest fore/aft adjustment seat adjustment motor (M18/26) (with code 453 (Rear reclining seats))
Right rear seat backrest inclination adjustment motor (M28/11)
Center rear seat head restraint height adjustment seat adjustment motor (M53/3) (except code 224 (Design individual rear seat system))
With code 402 (Rear comfort seats, incl. seat heating and seat ventilation):
Right rear seat backrest ventilation motors (M18/5)
Right rear seat cushion ventilation motors (M18/6)
With code 402 (Rear comfort seats, incl. seat heating and seat ventilation) or code P43 (Rear seat comfort package):
Right rear seat surface heater pad (R13/7)
Right rear backrest heater pad (R13/8)
Right rear seat LIN (with code P43 (Rear seat comfort package))
The right rear seat control unit communicates via the right rear seat LIN with the right rear seat seat heating control unit (N25/12).
Interior CAN
The signals sent by the right rear seat control unit via the interior CAN include the following:
Request for acknowledge tone after storage in memory
Seat position status
Seat heater status (with code 402 (Rear comfort seats, incl. seat heating and seat ventilation) or code P43 (Rear seat comfort package))
Seat ventilation status (with code 402 (Rear comfort seats, incl. seat heating and seat ventilation))
Variants
There are no variants for the hardware of the right rear seat control unit. The country or left-hand drive vehicle/right hand drive vehicle allocation is software coded.