Blower Motor Switch: Description and Operation

BLOWER SWITCH
The rotary Blower Switch has five positions, OFF; Low, M1, M2, and High. Rotating the Blower Switch results in the A/C - Heater Control providing direct blower motor activation, change in blower speed, and blower motor deactivation respectively. The Blower Switch must be in any of the four ON positions to request A/C, and also to have the A/C - Heater Control send a signal to the Body Control Module to signal the door actuators to change door position.