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Installed "new" used rear struts and now more problems?

2472 Views 17 Replies 7 Participants Last post by  ponyboyt
So I scored some rear struts off a 99 STS with 75k on it, installed them on my car (99 sts with 150k) and they work perfectly. BUT Now "service suspension, service stability system and service idle control" all pop up on my DIC. They never showed up until I installed the struts, I've checked and checked all the wiring, air lines ect.. all are fine. I'm hoping it's something simple if all of these popped up at one time, but I don't have a clue where to start, I've cleaned all ground locaions, unhooked the battery to reset everything, no change. Car is running fine (besides randomly blowing etc fuse?) Only codes are : C1721, C1722, C1782, P0550, P1520. All are history, but when I clear all the codes and take a drive they all come back and still pop up history. Any ideas? thanks for your help!
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you may have brought a code on when you unpluged the old shocks have you cleared the codes ? it might just be something simple that did not clear on its own or is in the history
are the codes current did not see if you mentioned that

its possilbe for the shock itself to be bad with the F45 maybe an electrical problem in the shock perhaps

other then those im not sure of anything els that im aware of that could be wrong you said you checked the wireing perhaps just the plug perhaps went bad when you unpluged it did you try some electrical cleaner like MAF spray cleaner and just spray it on the Plug let it sit to dry for about 10 minutes then plug it back in
that usualy works when ever i get a code for the ABS
just dirt inside the plug itself
i don't belive the Deville would have the same one cause i think the Seville SLS and STS where the only Cadillacs with the F45 option
perhaps the DTS model Deville had it but not sure
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