Nissan Repair Questions? Ask a Mechanic for Answers ASAP
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If the blower motor is not working in the car, but runs when manually powered, the issue is most commonly the blower motor amp. That is what the control unit powers and that is what controls blower motor speed. When it fails, it either will not turn the blower motor on ( provide ground ) or it gets stuck on speed high. So that blower motor amp would need to be replaced to resolve your issue.
That is located down by the blower motor. It's that one long plug and is secured by the two screws.
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