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Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

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Old 10-30-2004, 11:32 AM   #1
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Default Power sunroof won't stop moving

Scenario: my Aurora'* power sunroof is tilted open. I close it by pushing the rocker switch backwards. Instead of sealing closed (like normal), it shuts and then starts sliding to full open... all while I am holding the switch down. When it opens completely the gears grind for a second or two before the motor stops. Same problem when it slides closed (with the rocker switch pressed forward)... it goes all the way and continues to tilt open if I don't let up on the switch at precisely the right instant.

It seems obvious that the mechanism suddenly doesn't know when to stop the window & motor. A bad relay somewhere, right? But if so, what and where? This issue just started yesterday, but could be (and I'm actually hoping it is) related to previous problems I've had with the expected opening and closing.

Current GMs: '95 Chevy Suburban C2500, '69 Pontiac Executive
Former GMs: '83 Buick Park Ave, '73 Buick Electra, '92 Chevy Caprice 9C1, '98 Pontiac Bonneville SLE, '99 Olds Aurora, '00 Buick LeSabre
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