General Information

The blower motor forces outside air into the vehicle's interior. The vehicle operator determines the blower motor's speed when the driver places the blower switch in one of the following positions:
^ Low
^ Medium 1
^ Medium 2
^ Medium 3
^ High

The blower motor will operate in any switch position other than OFF, as long as the ignition switch is in the RUN position. When the ignition switch is ON, power from the fuse block is delivered to the blower motor switch through the ignition 3 voltage circuit. The blower motor and mode switches are located within the HVAC control module.

Power is provided to the blower motor from the fuse block. Depending upon selected blower speeds, voltage is either supplied directly to the blower motor or voltage is varied by a series of in-line resistors. Power and ground are provided to the HVAC control module by the ignition 3 voltage and ground circuit.