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 Control Module
Blower speed is controlled by a Blower Control Module located behind right side of dash, near Blower Motor. Blower Control Module processes a 5-volt Pulse Width Modulated (PWM) voltage signal from Instrument Panel Control Module (IPM) which receives information from A/C-Heater Control Head. The voltage is then amplified by the Blower Control Module to provide variable blower speed.
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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.