Defroster button, function - GF83.40-P-2139-02N
Function
The defroster function is started when the defroster button (
) is pressed. The temperature is set to maximum and the air flow is distributed to the defroster and side nozzles. All other flaps are closed. The blower voltage is regulated depending on the coolant temperature. The symbol "DEFROST" appears on the display in the automatic A/C pushbutton control module.