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 only operate in any switch position other than OFF, as long as the ignition switch is in the RUN position. The blower motor and mode switches are located within the HVAC control module. The blower motor OFF input is connected in series with the HVAC control module by the off blower motor control circuit.

Power is provided to the blower motor from the fuse block. Voltage for the high blower speed is delivered through the battery positive voltage circuit. Power for the HVAC control module, low and medium blower speeds are provided by the ignition 3 voltage circuit. The ground circuits ground the HVAC control module, blower motor and blower motor resistor assembly.