2002 Bonneville electrical glitches - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-02-2012, 08:19 PM   #1
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Angry 2002 Bonneville electrical glitches

My rear windows never worked now my passenger window stop working and just now the driver window went half way down and stopped I then noticed that the AC is not working the fan works but no ac also the oil, gas, and water gauges are now on 0 the amp gauge which is usual at 14 volts is now at 12 volts the door locks don't work and the radio stays on when you close the door also the air bag light is on any ideas on what has happen
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Old 04-03-2012, 08:06 AM   #2
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sounds like your ground isnt grounding any more. check the terminals at the battery. do you have a sun roof? they like to leak and cause damage to wires and grounds under the driver seat area
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Old 04-03-2012, 09:31 AM   #3
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Remove the driver'* seat (not a big job), lift the carpet and check the condition of all wiring and grounds under there. I'll bet you find corrosion.
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Old 04-03-2012, 12:12 PM   #4
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Thanks for the info heading outside now to pull the seat
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Old 04-04-2012, 05:41 PM   #5
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Pulled seat up could not unlock small connector so I had to tilt seat toward front everything looks good checked big wiring harness running left to right in rear of seat looked good is there a trick in unlocking small yellow connector is there wiring under front os seat? Is their any members who live near Charlotte that could help
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Old 04-05-2012, 09:33 AM   #6
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That yellow connector is for the air bag. It has a safety tab that prevents accident disconnection. Pull the safety tab out and you will be able to get the connector apart. The safety tab is a narrow piece of plastic, and when you pull it out it will be tethered to the connector with a short plastic tether. It pulls at right angles to the direction you pull the connector apart.
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Old 04-05-2012, 09:40 AM   #7
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Are the electric door looks working n the rear doors? If not, that will provide further support that corrosion under the driver'* seat has occurred.

Your driver window may be a separate issue.

There is a picture in the last post of this thread- may give you a area to look at:

https://www.gmforum.com/2000-2005-90/no-electric-any-door-except-driver-floor-soaked-water-301873/

Last edited by GunsOfNavarone; 04-05-2012 at 09:45 AM. Reason: more info
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Old 04-05-2012, 10:51 AM   #8
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thanks for the answer i checked the image mines looked totally clean no rust or any signs of corrosion I'm going to check the wires again where he showed in the pic to make sure I haven't checked the rear locks yet
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Old 04-11-2012, 07:45 PM   #9
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update dashboard gauges lights wouldn't go off killed battery couldn't find extension cord for charger , forced me to carry battery into house to charge it. installed battery next day guess what most of my problems are gone all gauges work all door locks working sunroof, driver window works passenger and rear windows still don't work. I'm going to take apart and clean all the grounds even I didn't see any signs of corrosion
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Old 04-11-2012, 08:16 PM   #10
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Thanks for taking the time to update. I still take another look at the jumper junction connector under the drivers seat. You have to pull off black electrical tape to see it. More than a few of us have traced our no window or electric door locks to all doors except the drivers to that connection being corroded.
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