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2015 Honda Civic – Passenger Side Radiator Fan Not Turning On with A/C

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Old Aug 15, 2025
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2015 Honda Civic – Passenger Side Radiator Fan Not Turning On with A/C

I have a question about my 2015 Honda Civic. It has two fans in the engine bay. The fan on the passenger side does not turn on when I switch on the A/C. When is this fan supposed to activate? I tested it by connecting it directly, and it works, but it doesn’t start when the A/C is running. What could be the cause, and how can I troubleshoot why it’s not engaging?

Any advice or suggestions would be greatly appreciated.
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Old Aug 17, 2025
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Re: 2015 Honda Civic – Passenger Side Radiator Fan Not Turning On with A/C

one is for engine, the other for AC...
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