20
Seat control units
System overview - seat control unit
393_031
Seat and steering column adjustment
control unit with memory
J136
Emergency OFF
CAN-high
CAN-low
Ter mi n al 30
Ter m i n al 31
Legend
1 Backrest limit switch (is required for adaption of the seat and protection of the gear mechanism on the
adjustment motor)
2 Easy entry button, for moving the seat forward or back for easier access to the rear seats
3 Unlocked backrest recognition switch
4 Double push-button for seat angle adjustment
5 Double push-button for seat height adjustment
6 Double push-button for longitudinal seat adjustment
7 Double push-button for backrest adjustment
8 Double push-button for head restraint adjustment
9 Head restraint adjustment motor with Hall sensor
10 Backrest adjustment motor with Hall sensor
11 Longitudinal seat adjustment motor with Hall sensor
12 Seat height adjustment motor with Hall sensor
13 Seat angle adjustment motor with Hall sensor
14 Climate control fan in the seat cushion
15 Climate control fan in the backrest
16 Line for encoding: driver or front passenger seat control unit
17 Heating mat in the seat cushion
18 Heating mat in the seat bolsters
19 NTC temperature sensor of the seat heater
20 Switch plate for the lumbar support
21 Lumbar support height adjustment motor
22 Lumbar lordosis adjustment motor
23 Footwell light (exclusive with lighting package)
24 Electrical interface to vehicle electronics or electrical system
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