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2001 Hyundai Santa Fe

 

Question: Why would radio cut out and lights dim when air conditioning is on?

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chitalgal, North Las Vegas, NV, August 11, 2011, 10:17
 Rookie

I have a 2001 Hyundai Santa Fe. For the last year or so there has been a problem with the radio cutting out and the lights (both dash and headlight, clock, etc.) dimming when the radio cuts out. This ONLY happens when the air conditioning is running. And it doesn’t happen all the time. Sometimes it doesn’t happen at all, and the next time I drive with the air on it does. I had the alternator replaced last Friday, and am still having the same problem, only now sometimes the ABS and TSB indicator lights illuminate at the same time as the radio cutting out and the lights dimming. Again, this ONLY happens when the air is running.

When the air isn’t running, I have noticed that when I turn on a blinker, or have the lights on, the clock sometimes seems to dim. When the blinker is on, it dims in time with the blinker on and off.

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  • Answer #1

    dandd August 11, 2011, 11:13
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     Master

    There is a wiring or ground problem in your dash, it could be the A/C panel is defective or has lost a ground and is seeking ground through your radio etc or there is another ground problem that is exacerbated when the A/C is running.

    Here are some shops:

    https://repairpal.com/directory?address=89031&car_bra...

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