Microswitch for backrest, folded down position (369f): Connect
The switch pin 3 is grounded to the seat control module (357Dk/k) pin 13. Pin 2 on the switch is connected to the input on the seat control module (357Dk/k) pin 27. When the switch is open, the voltage applied to control module pin 27 is approx. B+. When the switch is closed (backrest folded forward), the voltage on the input is 0 volts.