HI , I WAS DRIVING my car today and while driving the defrost came on high, then my mpg light, temp ,range, outside temp light went out and were replaced by{----} so i pulled over and unplugged my blower motor because it was throwing cold air! i check my codes and it read 1033, 1034, 1037, 1038. i looked them up and it stated it was data loss of sir,pcm,acp,icp. is this a computer failer and need to replace it or can it be a fuse? also is it ok to take it for short rides that i need to go to daily, in next couple days til i can find out what it is and fix it? thankS for any help at all, its much needed. thanks SAL

One or more component ( likely only one ) is pulling the data line down. If you can access each component and disconnect it, when you get the faulty one out of the crcuit, the others will resume operation.

hi. im sorry but confused. is this computer related? also, i have had my tranny rebuilt last year and started to leak last couple days about .25 a pint every 2 days? or is this electrical? could this have something to do with it? and would it be ok to drive it as is for the weekend? thanks and sorry for the ignorance! also, where do i begin to find out whuats the problem since im not inclined to fix this kind of thing and any idea of what it would cost me? thanks sal

Yes, computer related. It could be a fuse, but not likely. Sounds like you might want to consider a shop that is skilled in Caddy electrical and that you trust to treat you fairly.

It could be as cheap as a fuse or as much as several hundred dollars. You could probably drive it, but it sounds like it's gonna be kinda chilly with no heat!

thanks for your quick response. would it be easier if i just replaced the computer? would that solve my problem, i can get a used 1 for 75 bucks? thanks for your info and help its much apprecciated ..sal

One or more component ( likely only one ) is pulling the data line down. If you can access each component and disconnect it, when you get the faulty one out of the crcuit, the others will resume operation.
:yeah: You should consider what Cadillactech said here. Take it one step at a time, check the components before you start replacing things. You may find yourself replacing good stuff and not fixing the problem. Garanteed you will be very frustrated. If you are unsure of your ability to diagnose this it may be wise to get help from trusted professionals.

Kev

Circuit 800 problem. The computers are wired together and communicate over circuit 800. If one of the computers start messing up you get the '--' for your data and the loss of data codes you mentioned.

It is one of the following computers...

IPC
DERM
RSS
ABS
ACP

Intermitants can be very hard to pinpoint. Many times its the actual IPC cluster. Rebuilt IPCs can be found at AC Delco radio/speedometer repair shops. Figure about $300 exchange for a new IPC. Thats with you doing the labor of taking out the cluster.

Please note. The GM cluster test terminal will often make the IPC cluster 'look' ok. To them....'--' displayed on the IPC is a normal mode.


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thanks for your input, so ur saying if i was to replace the computer this might not solve the problem? hmmm ur right this is gonna be frustrating and probably costly at the same time. thanks SAL

thanks for your input, so ur saying if i was to replace the computer this might not solve the problem? hmmm ur right this is gonna be frustrating and probably costly at the same time. thanks SAL
All I'm saying is make sure you know the part has failed before you replace it. :)

Kev

I forgot the PCM. That should also be on the list. I have personally seen more IPCs (instrument clusters) cause this then any thing else.


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So I Need To Find A Good Electric Shop Is Wjhat Ur Saying ...thank Alot For Your Help Ill Keep Ya Posted On What Happened Thanks Again. also would driving this way til the begining of the week hurt it any more? thanks

Are good at electrical at all? There are ways to track down the problem.

It will not hurt it at all to drive the car.


Logan Diagnostic
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just wanted to tell ya's i went out to start my car tonight to go get a ceramic heater for the enxt couple days and what do ya know.. it fixed itself for now! u think the cold could of had something to do with it lol

Nada.....its intermitant....those are the hard ones. My '93 could go 500 miles before it showed up again.

Start saving those 300 buckaros......your going to need them. My money is on a bad IPC/ Cluster.


Logan Diagnostic
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www.ledfix.com

funny as this seems my dash has gone to slashes twotimes in last couple days but when it happens i press on the lens thats blocks the mph and prnd321 and it comes right back to what it supposed to weird isnt it could it be a lose ground or connection? thanks SAL