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Registered
86 Bronco, 74 Ford LTD,1999 Deville, 1977 Coupe Deville
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305 Posts
Discussion Starter #1
On my 99 Deville I just bought by mistake I have the Low refridg/A/C off & check coolant messages. I've read the sticky's & watched a couple youtubes on reading codes by pushing a bunch of buttons on the dash. I also understand I need to delete the A/C off code for the compressor to run & take in freon.
My question; Is there any drawback to doing these things with my handy dandy ODB11 code reader which I'm at this point more comfortable operating than the buttons on the dash?
I'll figure those out eventually. But right now it makes my head spin.
With my code reader I can push one button to delete all codes after reading & writing them down.
I just don't want to do something I'll regret.

Thanks, Brad
 

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Registered
98 DeVille, 97 DeVille d'Elegance
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7,345 Posts
The onboard displays more codes than handheld but for your situation it will clear the code for ac.
 

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2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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26,323 Posts
:yeah:

But FWIW, entering diagnostics on the DIC is very simple. You hold only 2 buttons to enter it. Then it's just up and down to scroll, one button for "yes", and one for "back". It's not complicated. Fool around with it when you have time, you can't mess anything up.
 

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Registered
86 Bronco, 74 Ford LTD,1999 Deville, 1977 Coupe Deville
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305 Posts
Discussion Starter #4
Re: Digital dash & ODB11 code reader question.

Thanks guy's! I just don't want to crash the computer!

Now I'm off to search for some 99 Deville HAPPY stories!
When I was car shopping I saw plenty of them with well over 150,000 miles & still running strong. This was prior to me coming here and finding out about the head bolt issue.
Mine has 98,000 miles and runs great at 195 degrees. But I'm afraid to even drive the dang thing now.
I could use a boost for my spirits!
There must be SOME happy/lucky? owners! Heh...Heh
 

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Registered
98 DeVille, 97 DeVille d'Elegance
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7,345 Posts
If Luke can't break on you can't, there are plenty of instructions on changing settings, codes, etc just on this site alone. Drive it man and don't worry about it.
No way to predict when and if HG will ever fail. You only see the horror stories here not all the others.
 

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Registered
86 Bronco, 74 Ford LTD,1999 Deville, 1977 Coupe Deville
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305 Posts
Discussion Starter #6
I think that's just what Ima gonna do! At least the 3 miles to town! Heh..Heh
It sure is easier on my crippled old back than my 85 Bronco with 35" tires!
 

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Registered
2001 DeVille DTS
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47 Posts
Bradrock,
Remember-- people don't come to online forums when they are HAPPY and have NO problems. They come here when they need and want help. And they GET help here. That's been my experience. I'm no expert at repair, and I have learned soooo much by browsing the posts here.

No matter if it is a GM, Ford, Chrysler, Kia, Hyundai, or Toyota-- ALL cars have problems at some point. I am very glad I found this forum, full of other people who love their Caddys as much as I love mine. I think you will find this forum to be a great resource as well.

My 2001 DeVille has 213,000 miles. And it continues to be a very reliable vehicle. I LOVE driving it every day. It is 14 years old now, but I think I can get at least 5 more years out of it.

Cadillac's are meant to be ENJOYED, not worried over. ENJOY YOUR CADILLAC!!
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,795 Posts
Practice makes perfect. Don't worry about crashing the computer. You can always just turn off the ignition, back out of it and start over again.
 
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