C 240 Sedan (203.061) V6-2.6L (112.912) (2002)
Power Seat Control Module: Description and Operation
Control modules
The front seat adjustment control module, with memory, driver passenger side (N32/1 or N32/2) control:
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eight seat adjustment functions9
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the seat forward / back motor groups (M27m1/M28m1), rear raise / lower motor (M27m2/M28m2), front raise / lower motor (M21m3/M26m3)
and head restraint raise / lower motor (M27m4/M28m4) as well as backrest forward / back (M27m5/M28m5) are identical in both the left and
right-hand seats.
Adjustment functions
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Front height adjustment
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Longitudinal adjustment
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Rear height adjustment
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Backrest adjustment
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Head restraint adjustment
Group categorization
The adjustment functions are split up into three groups. At the same time only one motor can be driven per group.
If the seat adjustment switch is actuated for longer than an adjustment function assigned to a group then the following sequence is adhered to:
Group 1:
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Longitudinal adjustment
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Rear height adjustment
Group 2:
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Backrest adjustment
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Front height adjustment
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Head restraint adjustment
Group3
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Steering column adjustment forward/back
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Steering column adjustment up/down
Position detection for the seat is carried out via Hall sensor at the adjusting function motors.
Rotational direction assignment is automatic.
Storage
Storage is in the front seat adjustment control module with memory, driver side or passenger side (N32/1, N32/2).