G 1500 1/2 Ton Van V8-305 5.0L VIN H TBI (1995)
Blower Motor: Description and Operation
A/C
The Blower Motor delivers air to the interior of the vehicle. Its speed is controlled by the Blower Switch and the Blower Resistor. When the Ignition
Switch is in RUN, battery voltage is supplied to the Blower Switch. With the Blower Switch in LO, voltage is supplied across all three Blower Resistors
through the high blower relay to the Blower Motor. The Blower Motor runs at its slowest speed.
With the Blower Switch in MED1, one of the Blower Resistors is bypassed and the Blower Motor runs faster. With the Blower Switch in MED2, two
Blower Resistors are bypassed and the Blower Motor runs faster. When the Blower Switch is set to HI, battery voltage is supplied directly to the Blower
Motor through the high blower relay and the Blower Motor runs at its fastest speed.
