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1986 Cadillac Eldorado
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Discussion Starter #1
I've bought 2 now online on EBay and they were both different part numbers and did not work on my 1986 Eldorado. Mine stopped displaying information about a month ago, but buttons still work. The first I bought displayed garbage info and buttons didn't work, the 2nd did the same as mine - no info but buttons worked. I then found they both are different part numbers and someone said I need the EXACT part number - why they made different part numbers that look identical I have no idea. Any help on where to find would be greatly appreciated.
 

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92 Fleetwood 2dr cpe - FWD, 96 Seville SLS, 02 Seville
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827 Posts
Could be the bcm. Had the same problem with my 92 Fleetwood.
 

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1986 Cadillac Eldorado
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8 Posts
Discussion Starter #3
Could be the bcm. Had the same problem with my 92 Fleetwood.
Could be the bcm. Had the same problem with my 92 Fleetwood.
Well I'm not sure it is that because if I put one in with the wrong part number it lights up and gives information - the information is just incorrect. My original one does not light up anymore - but the buttons do work. I'm still looking for one, 9 months later :(
 

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1999 Eldorado 1983 Seville
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108 Posts
I've bought 2 now online on EBay and they were both different part numbers and did not work on my 1986 Eldorado. Mine stopped displaying information about a month ago, but buttons still work. The first I bought displayed garbage info and buttons didn't work, the 2nd did the same as mine - no info but buttons worked. I then found they both are different part numbers and someone said I need the EXACT part number - why they made different part numbers that look identical I have no idea. Any help on where to find would be greatly appreciated.
Just throwing a thought out there.... If you have the 25083989 unit, Gm says the replacement unit is a 25084438 which is for a car with the rear window defroster. Without the rear defroster the number is 25084439. The 4438 unit should be available from 2040parts.com or you could contact Anthony Barlos at [email protected], phone number is 636-397-2216. Anthony does excellent radio repairs at a reasonable price, don't know if he has expertise with A/C units but it sounds like your unit is working except for the display and he might be able to help you with that. Worth a try anyway.
FWIW... This same unit is used on some later model Eldos around 1991 (according to GM), perhaps with a different faceplate on it. Might want to check with a local Stealership for verification.
 

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1986 Cadillac Eldorado
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8 Posts
Discussion Starter #5
Thanks I will try. I first tried units off later models, first feom a 91 (with different pn) ans 2nd off an 88 (again a diff pn). They look the same on outside, did have some diferences inside, and neither would control my A/C. The display in both worked just not correct info. Thiught about mixong and matching parts but didnt want to unsolder one and potentially destroy it.
 

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1986 Cadillac Eldorado
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8 Posts
Discussion Starter #6
Just throwing a thought out there.... If you have the 25083989 unit, Gm says the replacement unit is a 25084438 which is for a car with the rear window defroster. Without the rear defroster the number is 25084439. The 4438 unit should be available from 2040parts.com or you could contact Anthony Barlos at [email protected], phone number is 636-397-2216. Anthony does excellent radio repairs at a reasonable price, don't know if he has expertise with A/C units but it sounds like your unit is working except for the display and he might be able to help you with that. Worth a try anyway.
FWIW... This same unit is used on some later model Eldos around 1991 (according to GM), perhaps with a different faceplate on it. Might want to check with a local Stealership for verification.
Hey thanks that new P/N worked I found one online on eBay and 3rd time's a charm it worked (that was the 3rd unit with a different part number).
 
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