Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2000S10/T10 P/U 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGDESCRIPTION AND OPERATIONHVAC SYSTEM - AUTOMATIC CONTROLCONTROL ASSEMBLY, HVACBLOWER SPEED CONTROL
2000 Chevrolet S10/T10 P/U 2WD V6-4.3L VIN W
Blower Speed Control
2000 Chevrolet S10/T10 P/U 2WD V6-4.3L VIN WSECTION Blower Speed Control
The blower switch provides a choice of various blower speeds. The blower switch receives power through a fuse in the fuse block when the power is ON. In the various speed positions, the circuit continues through the heater wiring harness to the blower motor resistor assembly near the blower motor.
The circuit goes from the resistor assembly to the blower motor terminal in order to operate the blower motor.
The blower motor relay provides battery voltage to the blower motor assembly only during high blower motor assembly speed. The blower motor circuit is completed to ground by a wire in the heater wiring harness. The wire goes from the blower motor terminal to a terminal at the dash sheet metal near the blower assembly in the engine compartment.
The circuit goes from the resistor assembly to the blower motor terminal in order to operate the blower motor.
The blower motor relay provides battery voltage to the blower motor assembly only during high blower motor assembly speed. The blower motor circuit is completed to ground by a wire in the heater wiring harness. The wire goes from the blower motor terminal to a terminal at the dash sheet metal near the blower assembly in the engine compartment.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.