- #7 of 36
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Re: 1999 sts TRACTION CONTROL & ABS [tscrane]
by blkhemi
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Sep 22, 2005 (11:27 am)
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Replying to: tscrane (Sep 22, 2005 6:24 am)
Did your service suspension warning light come on also? Since you do have an STS, it has the road sensing suspension. In my previous 2000 STS, the abs, traction, and suspension light came on, resulting in me needing new shocks. In your case, you may also want to get your vehicle hooked up to a scan tool so it can read the trouble codes computer is throwing out. It could be something as minute as a non-working sensor. Also get your brakes and brake fluid checked. Low fluid in the resevoir can result in the abs light being flashed. Does your traction light go out when you depress the button?
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- #8 of 36
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Re: 1999 sts TRACTION CONTROL & ABS [blkhemi]
by tscrane
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Sep 23, 2005 (3:22 pm)
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Replying to: blkhemi (Sep 22, 2005 11:27 am)
We've been having this problem since late 2003. The dealer did diagnosis and ended up removing and replacing 3rd brake light at a cost of $535.94. What a ripe off. Well we have driven the car a total of 7,000 miles since then and we still have the problem. We appreciate your help and will try your suggestions. Will let you know results.
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- #9 of 36
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Re: 1999 sts TRACTION CONTROL & ABS [blkhemi]
by hippiejoe
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Nov 08, 2005 (10:15 pm)
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Replying to: blkhemi (Sep 22, 2005 11:27 am)
I am having this same problem and afraid of getting taken at the dealership. 2000 STS with 100k. The stability warning comes on and the abs and traction control light up. I have to hit something rough like a good jarring from a railroad track. It is a little noisey going down some uneven country roads, but doesn't always set off the computer. Once the warning is on it stays on till the car is restarted. Then it will take another jolt to get the message again. I can go days without it coming on. I just bought the car and noticed from the shroud that it has been hung up on something so I suspect it could be as simple as a connection. Does anybody have costs of what they have spent on repairs that might be involved should I not be able to figure it out. Any suggestions on a list of what to check would be great as this my first caddy and more involved than I imagined.
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- #10 of 36
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Re: 1999 sts TRACTION CONTROL & ABS [hippiejoe]
by herheart
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Nov 22, 2005 (9:37 am)
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Replying to: hippiejoe (Nov 08, 2005 10:15 pm)
I have this same problem with my 98 Eldorado. Traction Control light, ABS light, and Service Stability System warning, all come on intermitently while driving. The dealer where we bought the car said the problem was passenger side hub assembly and replaced it. Same problem started again after driving for about a month. Took the car to our regular mechanic recently and he traced the problem to the EBCM. Estimate from our mechanic to fix this is approx $800.
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- #11 of 36
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Re: 1999 sts TRACTION CONTROL & ABS [herheart]
by anoyed1
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Nov 23, 2005 (8:18 pm)
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Replying to: herheart (Nov 22, 2005 9:37 am)
I have the same problem with my brand new 2005 Deville that has only 1500 miles on it. And I also get an urgent message to check my airbag, check my tire pressure sensor, and it tells me that my traction control is off. My red battery light turns on, my red airbag light turns on, and I lose all dashboard information such as is my care in park or drive or reverse? at what speed i am going? is there gas in my tank? etc.
This has happened 3 times since I bought the car 2 months ago.
I've had it serviced twice so far. The first service guy who came on roadside assistance to deal with it said the car may have had a lose connection somewhere on the electricals, or maybe something was jarred loose when I drove over a bump. I've just had the 2nd adjustment at the dealership and now it feels like i don't have any shock absorbers and the car bumps up and down like crazy.
I am very unhappy with this car.
I have had 8 cadillacs devilles over the past 20 years and this is model year is a real loser.
Never buy a car from a company that is in the process of going bankrupt.
very very annoyed   
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- #12 of 36
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Re: 1999 sts TRACTION CONTROL & ABS [hippiejoe]
by khrissy770
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Jan 06, 2006 (7:43 pm)
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Replying to: hippiejoe (Nov 08, 2005 10:15 pm)
IM HAVING THE SAME PROBLEM ALSO IT ALWAYS READ AFTER ABOUT A MILE OR SO SERVICE STABILITY SYSTEM AND I WENT TO SOME ONE THAT SUPPOSE TO SPECIALIZE IN CADDIES BUT I WASNT CONVINCE THAT HE WAS BEING HONEST BECAUSE HE TOLD ME THAT I NEED A YAW SENSOR TO FIX THE STABILITY PROBLEM BUT WHEN I CALLED THE DEALERSHIP THE TECH SAID IT WAS NO SUCH SENSOR FOR THAT IN THAT CAR SO I CALLED THE AUTO PRTS STORE AND NO SUCH THING SO WHAT IM GOING TO DO IS BUY ME SOME SERVICE MANUALS AND SEE IF THAT HELPS LIKE THE ONES THE REPAIR SHOPS USE BUT IF ANY ONE KNOWS WHAT IT IS PLEASE LET ME KNOW THANKS
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- #13 of 36
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93 STS OBD Ground Pin
by 1993caddysts
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Feb 03, 2006 (9:58 am)
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My 1993 Cadillac STS is missing the ground pin to further diagnose an OBD code.
Supposedly the ground is sometimes removed so that only the dealer can diagnose it.
With Cadillac mechanics charging $150/h to diagnose I would rather do it myself.
Can the terminal be grounded to any ground...or must it be to the connector ground.
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- #14 of 36
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Re: 93 STS OBD Ground Pin [1993caddysts]
by 1993caddysts
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Feb 08, 2006 (5:03 pm)
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Replying to: 1993caddysts (Feb 03, 2006 9:58 am)
Turns out the code is only readable with the On-Board System.
The Tech 1 tool cannot be used with OBD1 Cadillacs. Another reason to own a Caddy!
Anyways, I have acquired a fault tree and hopefully can find the problem.
The code T061 for "Motor Pump Relay Fault" is present.
I'll post with more info. Anyone have any suggestions?
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- #15 of 36
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alt.replacement
by 240zboss
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Oct 31, 2006 (2:01 pm)
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how do you replace the alt. on a 98 sts northstar motor.
what needs to be remove to do so!
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- #16 of 36
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99 sts fuel gauge back and forth- speed limited to 90, etc.etc.etc
by rdrags
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Feb 02, 2007 (7:32 am)
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i purchased the car a month ago, knowing the previous owner had just replaced the instrument cluster,(still not working properly). after spending, $850 at selling dealer, checking grounds,(poss not all),working with caddy tech support we replaced the ignition switch. vehicle's systems worked perfect for 30 miles. then fuel gauge started shooting to E,then return, a minute later...speed limited to 90 appears in the dic reading. among other things, like a flash of security, abs lights. windows and locks working intermittently, i then went to cadillac, they re programed the ipc for $80. said that would fix it, or we would need to replace it. well, the second cluster is in and still not working properly. now every time i start the car, speed limited to 90 appears, then the fuel gauge starts again. i have noticed,relay #48..CVRSS DAMPERS has continued to buzz, on two different occaisions after the car has been shut down. a simple disconnect of the negative ground on the battery will reset this. ANY IDEAS...ANYBODY. TX,RDRAGS
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