Blower motor control module, function - GF83.10-P-2169-01P
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2007 Mercedes-Benz C350, 2007 Mercedes-Benz C280, 2007 Mercedes-Benz C230, 2006 Mercedes-Benz C55, and 2006 Mercedes-Benz C350. However, it is still accessible from the selected car via links, so may be relevant.
Function
Via a potentiometer integrated in the electronic rear blower thumb wheel (N22/4) a control voltage is passed on to the rear blower motor control unit via the comfort AAC control and operating module (N22/7)(N22/3).This then regulates the operating voltage (0 to 12 V) 12V) for the rear blower motor, depending on the control voltage applied (M2/1). This facilitates control of the blower speed from 0 to 100 %.