9-3 (9440) L4-2.0L Turbo (2.0 HOT) (2003)
Power Seat Switch: Description and Operation
Driver's Side With Memory
Switch, Electrically Adjustable Driver's Seat With Memory (357D)
Main task
To enable operation of the seat motors that move the seat lengthways, change the seat height and angle plus backrest reclining angle.
Type
The switch unit comprises a number of switches.
Connect
The switch unit is powered with B+ from the seat control module (357Dk) pin 28. When a switch closes, B+ is fed back to the corresponding switch
input on the control module. The voltage then changes from 0 V to B+.
The switch is connected to the control module and affects the following motors:
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electric motor (357a) moves the seat backwards and forwards
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electric motor (357b) changes seat cushion angle
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electric motor (357c) raises and lowers the seat
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electric motor (357d) changes the backrest rake
Diagram LHD