1989 Chevy Suburban electrically dead

1989 CHEVROLET SUBURBAN
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SCHOLTES
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210000 mi, 350 engine. All electrical systems died at once, except for headlights, dome light, horn. No ignition, radio, power windows, A/C fan, turn signals, wipers. Battery is charged and headlights are bright. No noises of any kind when try Start on ignition switch.

If I turn the ignition switch back to the aux position, then try electric door locks, something down under the dash buzzes (relay?). In Run position, it doesn't do anything.

With ignition in Aux position, radio works, but not in Run position.
Jun 15, 2007 at 10:04 PM
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88SUBURBAN
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I don't have an answer for you but I am experiencing the same exact problem with my 88 GMC Suburban. I have tested the fuse block, alternator, starter, and ECM and have found nothing unusual.
If I figure it out I will post it here too.
Jul 22, 2007 at 11:34 AM
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SCHOLTES
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The problem turned out to be a shorted-out starter motor.
Jul 23, 2007 at 10:37 AM
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