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engine cooling fan V70-XC70 2009

Grounding the positive cable removes any current stored in the various computers, grounding all of them by default. I didn't realize that this was a new unit, so it should have worked immediately.

Is the temperature gauge on the dash working normally?

To answer your question about the AC and fan, yes, the fan should turn on when the ac compressor is engaged. With cooler weather this time of year, who knows...



--
Keeping it running is better than buying new






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