'96 Bonneville Electrical Problems - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-24-2005, 08:19 PM   #21
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Here is the RFA module from a 97:





Location is between the HVAC programmer and relay center.


With the symptoms above, I do not suspect an RFA module. I do suspect a ground problem but not in the sense of a bad connection. Instead, I'd look for water and/or corrosion at the ground bus connectors on both sides of the car running along the sill near the kick panels. Here'* one in my 90. You will have one on both sides of the car and there are in the same location.

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Old 08-24-2005, 08:33 PM   #22
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Thanks you, sir, for joining our "little party".

Quote:
Originally Posted by randman1
With the symptoms above, I do not suspect an RFA module. I do suspect a ground problem but not in the sense of a bad connection. Instead, I'd look for water and/or corrosion at the ground bus connectors on both sides of the car running along the sill near the kick panels. Here'* one in my 90. You will have one on both sides of the car and there are in the same location.


yeah........that was going to be my next suggestion........NOT

So, I have steered this lad down the wrong path?

Again, thank you, sir. But........what lead you to the ground bus connectors, if I may ask and learn, oh wise one?
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Old 08-24-2005, 08:49 PM   #23
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According to my 97 manual, the power antenna, fog lights and some instrument warning lamps ground through one of the ground bus connectors (C340 & C332). Corrosion is not a very good condctor so when it "jumps" from a +12v source to a ground it acts as a resistor.

Theory: Power antenna relay activates when 12 volts is present across the coil. If there is a resistive path to a +12v source on the ground wire, there might only be 10v across the coil and therefore would not trigger the relay. It could also explain the battery drain.

It'* a sound theory and kinda fits in this situation. I'm not saying that what you have been posting is not right. As a matter of fact, I learned a thing or two from the information you have provided. It'* just that I have not seen many failures of the modules in question but water leaks and corrosion has been the source of many-a-problem. It'* much easier to test too with a volt meter
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Old 08-24-2005, 10:03 PM   #24
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Thanks for the "lesson", professor

I agree that the modules are not prone to failure, and it sounded like ground, I just didn't understand the bus connector connection. The door locks also threw me.

Orbitz, follow the instructions of the man with the "Resident Gearhead" status and see what that get'* you.
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Old 08-24-2005, 11:20 PM   #25
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Gotcha. It is 10:16pm here in Ontario so I will have to wait until tomorrow to check this new information out. I spent far too many hours in the pitch black dark fixing my old '91 Grand Prix that I don't want to start that again with this car :P
Thanks again for the suggestions everyone and I will check back in tomorrow.
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Old 08-25-2005, 02:11 PM   #26
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Thanks to everyone'* help, I managed to find the ground connector down in the passanger side near the door. It was coroded pretty bad. I cleaned it up and now all is well again with the Bonneville!!
Just wanted to give a big thanks to everyone who helped!!!
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Old 08-25-2005, 04:14 PM   #27
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Yeah, right................MY help was, oh, so useful

Thanks Randman. You have come through, once again!

(as of this point, I am "banning" myself from particpating in any more "Electrical" posts ).

BAN! BAN! BAN!
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Old 08-25-2005, 07:54 PM   #28
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Bob, you handled yourself with wonderful results in the end. Very well done. Methodical and accurate advice.

Randman, once again as well.

Orbitz, much of the credit goes to you for your excellent communication on this one. That'* what made it all possible.

One of the top 10 topics on this forum. VERY well done to all.
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Old 08-25-2005, 09:22 PM   #29
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Quote:
Originally Posted by willwren
Bob, you handled yourself with wonderful results in the end. Very well done. Methodical and accurate advice.

Randman, once again as well.

Orbitz, much of the credit goes to you for your excellent communication on this one. That'* what made it all possible.
Thanks, Bill, but............If it hadn't been for Randy, I would have wasted several days of orbitz'* time.

Randy gets the props!

And, orbitz, Bill is right, your description of the problem and the what you had tried helps the gearheads get to the solution!
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Old 08-26-2005, 01:39 AM   #30
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Just wanted to say thanks again to everyone who helped and for the kind words as well. You guys make me want to study electronic'* further, and I think perhaps I just might As for Bob, you did not waste my time, in fact you gave me some insight into other electronics in my car that I was never aware of before. You also made me want to learn more about every little nick-knack in the car, and as I said, I just might look into doing that.

Once again, I thank all who helped and though my knowledge is limited, I will keep looking around the board in case other people have encountered problems I had with this '96 or my old '91 in case I can help.

Good night all and have a great day tomorrow!!
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