Nissan 27220-2Y900 Motor & Fan Assy-Blower

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First of all, remove the cover screws and test the blower motor connector's voltage. Remove the motor mounting screws and carefully take out the blower motor. If replacing, detach the fan and transfer to the new motor. Reinstall in reverse order and test out the blower.

If the blower motor speed doesn't match the selected setting or doesn't work, check the fuse and relay first. If these are fine, remove the glove compartment and lower dash trim to access the heater case and blower motor. Test the voltage at the motor electrical connector. If voltage is present but the motor doesn't work, check for a bad ground or faulty motor. If the ground circuit is bad, check the blower resistor. If there's no ground signal at the blower resistor connector, repair the blower motor switch or circuit. If a ground signal exists, check the blower resistor for continuity. If resistance is infinite, replace the resistor.