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PostPosted: Tue Feb 26, 2019 2:33 pm 
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Joined: Mon Sep 03, 2018 5:15 pm
Posts: 24
Year and Trim: 2002 Bonneville SSEi
Does anyone have a good source for wiring diagrams and databus info?
Trying to track down a few electrical gremlins.
I think it's either a grounding issue (mainly the dashboard) or databus issues. Communication seems to "hang up" until I start making "data traffic" on the buss. It wakes up if I quickly press fog light button, play with heater controls, etc.


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PostPosted: Wed Feb 27, 2019 10:16 am 
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Joined: Mon May 19, 2008 6:04 pm
Posts: 25373
Location: Browerville, MN
Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
I use the factory service manual from GM Techline eSi, the same thing the dealers used to use back in the day. You can install it on your own computer: https://www.youtube.com/watch?v=5gKz4mKnv0w&t=30s

If you don't want to mess with that, you can let me know exactly what diagrams you are looking for and I can provide them. PM me your email address.

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-Andrew-
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2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
2005 Town & Country Limited | Butane Blue Metallic | 290k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 210k | Official Bonneville Hauler


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