Shown on driver seat, model 222 |
N32/15 | Left front multicontour seat control unit |
N32/16 | Right front multicontour seat control unit |
P91.25-2554-12
Location
The multicontour seat control unit is located at the bottom, in the backrest frame of the respective front seat.
Tasks
The multicontour seat control unit does the following:
Inflating and deflating the multicontour backrests
Control of massage function through the left front seat massage function control unit (N32/31) or the right front seat massage function control unit (N32/32)
Adjustment of stored pressure values when calling up the memory function and store the contours (with code 275 (Memory package) or model 217)
Shutoff of the respective function if the pressure valve responsible has overheated
The tasks are subdivided as follows:
Read in sensors and signals
Evaluation of input factors
Actuation of components
Read in sensors and signals
The multicontour seat control unit reads in the input factors via interior CAN (CAN B).
The following signals are read in, among others:
Air cushion adjustment request
Massage function request
Dynamic function request
Request for storing/moving to memory position (model 222 with code 275 (Memory package) or model 217)
PRE-SAFE® adjustment request
Evaluation of input factors
The input factors read in are evaluated by the multicontour seat control unit. The air cushions of the contour insert in the seat are inflated and deflated via the valves in the multicontour seat control unit.
Actuation of components
The actuation of the components takes place via the following connections:
Massage components LIN (LIN B26)
Interior CAN
Massage components LIN
The multicontour seat control unit then actuates the following components via the massage component LIN:
Left front seat massage function control unit
Right front seat massage function control unit
The air cushions in the massage insert are inflated and deflated via the valves in the massage function control unit.
Interior CAN
The multicontour seat control unit sends the following signals via interior CAN, among others:
Compressed air supply request
"Hot-Stone" request
Variants
There are no hardware variants for the multicontour seat control unit. The assignment for driver or front passenger seat and the country or left-hand/right-hand drive vehicle assignment is also coded by the software.
Wiring diagram for multicontour seat control unit | Model 217 with code 432 (Dynamic seats left and right)Model 222 up to model year 2018 with code 432 (Dynamic seats left and right) except code 406 (Multicontour rear seat) | ||
Model 222 as of model year 2018 with code 432 (Dynamic seats left and right) except code 406 (Multicontour rear seat) | |||
Model 217 with code 432 (Dynamic seats left and right)Model 222 up to model year 2018 with code 432 (Dynamic seats left and right) except code 406 (Multicontour rear seat) | |||
Model 222 as of model year 2018 with code 432 (Dynamic seats left and right) except code 406 (Multicontour rear seat) |