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 MANUALSOLDSMOBILE1998EIGHTY-EIGHT V6-3.8L VIN KREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - HVACCONTROL MODULE HVACDESCRIPTION AND OPERATIONBLOWER SPEED CONTROLWITH ELECTRONIC CLIMATE CONTROL
1998 Oldsmobile Eighty-Eight V6-3.8L VIN K
With Electronic Climate Control
1998 Oldsmobile Eighty-Eight V6-3.8L VIN KSECTION With Electronic Climate Control
The blower control module is a solid state device that operates the blower motor. The blower control module outputs a voltage that varies between 0 volts (blower motor OFF) and 12 volts (maximum blower motor speed).
To determine the appropriate output voltage, the blower control module monitors a varying voltage signal (between about two and eight volts) from the heater and A/C programmer. The module then amplifies the signal and applies voltage directly to the blower motor. Blower control module output voltage is also monitored by the heater and A/C programmer.
To determine the appropriate output voltage, the blower control module monitors a varying voltage signal (between about two and eight volts) from the heater and A/C programmer. The module then amplifies the signal and applies voltage directly to the blower motor. Blower control module output voltage is also monitored by the heater and A/C programmer.
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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.