Rick's Free Auto Repair Advice

Posts Tagged: T and C blower motor

Blower Motor Stays on High

Blower Motor Stays on High If your Blower Motor Stays on High you should suspect a burned out blower motor resistor—unless your vehicle has auto temp control (climate control). Those systems do not use a resistor. They vary the fan speed by sending a varying voltage from the temp control to the blower motor power module. To test the system, connect a digital volt meter to the dark blue/light blue wire at the blower motor power module and see if the voltage varies as you change the fan speed with … Read More

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