2003 Hyundai Santa Fe

2003 HYUNDAI SANTA FE
80,000 MILES • 6 CYL • 4WD • AUTOMATIC
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CURT CAMPBELL
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  • 1 POST
When driving my Santa Fe, the AC, radio, lights, and other electrics go off...car continues to run fine. However, after stopping and turning the car off and restarting, all those electrical things start working again. Then, after a short time, it happens again. The battery shows full voltage and when running the alternator seems to be charging. No indicator lights of any type come on. This happened today driving 50 miles, had to stop and restart several times...each time the electrics started working again.

Any ideas? Thank you
Jul 22, 2010 at 11:09 PM
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KHLOW2008
  • CERTIFIED EXPERT
  • 41,814 POSTS
Hi Curt Campbell,

Thank you for the donation.

From symptom description, power supply to all the items listed is being interrupted.

A power supply line contact is poor somewhere and heat is building up and causing the interruption.

It could be a wire harness connector or even a faulty ignition switch. When problem occurs, you need to test if power is coming out of the ignition switch ACC circuit.
Jul 23, 2010 at 11:33 AM