General Information

The blower motor forces outside air into the vehicle's interior. The vehicle operator determines the blower motor's speed by placing the blower switch in one of the following positions Low, M1, M2, or High. The blower motor will only operate if the mode switch is in any position other than OFF, regardless of blower switch position Both the blower and mode switches are located within the HVAC control assembly. The mode and blower switches are connected in series at the HVAC control assembly by the mode door control circuit.

Depending upon the selected speed, power is provided to the blower motor from either the IP fuse block or underhood fuse block. The underhood fuse block only provides power when the High blower switch position is selected Power and ground is provided to the HVAC control assembly by the ignition 3 voltage and ground circuits.