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.
Blower Motor Speed Control Switch (Manual Control Panel)
Blower motor operation is controlled by 5-position switch mounted on upper left corner of control panel assembly. The A/C on-off switch is incorporated into center of blower switch. When blower switch is off, motor ground circuit is open and blower motor does not operate.
When switch is in first position, current flow from blower motor is restricted by 4 resistor coils in blower motor resistor assembly. With switch in second position, one resistor coil is by-passed and current flow is restricted by 3 resistor coils. In third position, 2 resistor coils are by-passed and current flow from blower motor is restricted by 2 resistor coils. In fourth position, 3 resistor coils are by-passed and current flow is restricted by one resistor coil.
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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.