S10/T10 Blazer 4WD V6-262 4.3L VIN W CPI (1992)
Blower Motor: Description and Operation
BLOWER CONTROLS
The Blower Motor Fan delivers air to the interior of the vehicle. Its speed is controlled by the Blower Switch and the Blower Resistors. When the
Ignition Switch is in RUN, battery voltage is supplied to the Blower Switch through the HTR-A/C Fuse. With the Blower Switch in LO, voltage is
supplied across both Blower Resistors and the Blower Motor. The Blower Motor runs at its slowest speed. With the Blower Switch in MED, one of
the Blower Resistors is bypassed and the Blower Motor runs faster. When the Blower Switch is set to HI, battery voltage is supplied directly to the
Blower Motor and the Blower Motor runs at its fastest speed.
