ML 500 (163.175) V8-5.0L (113.965) (2003)
Seat Heater: Description and Operation
GF91.30-P-3002-02GK Heated Seat Switch, Function
GF91.30-P-3002-02GK Heated Seat Switch, Function
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with CODE (873) Electrically heated left and right front seats
The corresponding input of the extended activity module (EAM, N10/1) is connected directly to ground by the left front heated seat switch (S51/1) or the
right front heated seat switch (S51/2) when the switch is set to heating stage I. The extended activity module (EAM, N10/1) recognizes "heating stage I
actuated".
When the switch is set to heating stage II ground is connected to the corresponding input by the left front heated seat switch (S51/1) or the right front
heated seat switch (S51/2) via a resistor integrated into the switch. The voltage then present on the resistor is recognized as "Heating stage II actuated"
by the extended activity module (EAM, N10/1) (voltage coding).