2007 Hyundai Elantra after changing the headlamp bulb we ar

2007 HYUNDAI ELANTRA
108,000 MILES • 4 CYL • 2WD • MANUAL
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BILLIE24295
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We had to unhook the battery to replace the bulb then when we started the car back up many things will not work: A/C, Power windows, Power steering, tail lights, dash back light, and radio. All the fuses are still good. We are stumpped! When it was put on a diagnostic is didn't show any problems other than needing a new battery.
Sep 6, 2010 at 7:12 PM
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KHLOW2008
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Hi billie24295,

Thank you for the donation.

Symptoms indicates a power supply interruption.

Check B+ Fusible link ( 50 A) in under hood E/R junction box, in left front corner of engine compartment.

If fuse is good, unplug fuse and test for battery voltage at the terminals, at least 1 of the terminal must be hot at all times.
Sep 7, 2010 at 9:29 AM