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2001 Saturn SC2 Question: HVAC fan on high with switch off



, Virginia Beach, VA, October 05, 2010, 09:08

My HVAC fan suddenly went to high with switch off. It stays on high while car is running. Never changed/tested a relay before. Any help?

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  • Answer #1

    October 27, 2010, 19:13

    Using a ohm meter (usually a setting on a volt meter), test prongs 86 and 85. If it read open, it is bad. Or take a 9 volt battery and hook it to these terminals. If you hear a click, it is good. If not, the relay is bad.

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