electric issues e-ghosts...rear integration module, (RIM) - Page 3

SLOWROLL....OK....I'LL HAVE TO DO  MONDAY...THANKS
rickyd

quote:

ORIGINAL: slowroll

With a GM tech 2 when condition is occurring look for the non communicating or missing module.

???? DOES THIS MEAN DO NOT CHANGE THE RIM JUST YET?........PERFORM THIS TEST FIRST?........OR IS THIS A TEST FOR THE RIM?..... SORRY........
rickyd
 
as of 3:00 today series 300 grounds have been checked,cleaned, coated, and replaced....... i must say that all grounds looked brand new......in talking with past owner, car has been garaged sense day one........i do want to pull up, under hood fuse box and check for corrosion there....(does anyone agree with this?)...............other than that, do the tech2 check for missing, or non responding modules, then replace the RIM.............
what a challenge this has been
rickyd

I figure as I read tech threads, the writers of the posts are trying to avoid the dealer.In mid 90s cadillac got away from on board and the Tech2 became required to diagnose most systems.Car with multiple U codes the scanner is very helpful in determining where to look, it wont necessarily give the answer. If you have gone as far as you go on your own, a trip to the dealer maybe required. The RIM controls most of the things that aren't working when condition occurs.

slowroll..... you give good advise, i am trying to get the car into a certified tech.......tho, our schedules aren't working right.......however, it just seems to me the more i dig, (with the forums help) the closer i'm getting to the problem.......
two questions:
COULD the fuel sending unit be a cause for the E-Ghosts?
COULD there be corrosion under the fuse box in engine compartment that is cause for in cabin E-Ghosts?

Sending unit merely a sensor, it is monitored and should set its own p series code.Corrosion on power or ground circuits can cause all kinds of unusal conditions. Modules that get less than 10.5v on their battery feed circuits are not going to operate well. They are designed to run on min 12v and max of approx 16v. 13.0-13.8v normal. Yes, corrosion in the underhood or under rearseat electrical centers could cause your problem.Fuses that don't fit teminals tight, also - fuses that have ign, bat, or module in there names are good ones to check for low voltage when condition occurrs. Low source voltage has the same effect as poor grounds , It's just uncommon in GM cars.

ipc-b1652......ipm-b1652..... and, pcm-p0603........what do these codes mean?? ......... going to dealer tomorrow, and run car with tech2..... i'll follow your instructions slowroll..... tx
rickyd

all 3 - loss of  keep alive memory. Under hood fuse box contains related  fuses. The corrosion you asked about earlier as well as removing fuses to check them could be cause.

HAD UNDER HOOD FUSE BOX UP AND OUT......UNDERNETH WAS AS CLEAN AS CAN BE......NO CORROSION!!!  DID FIND ONE GREEN WIRE THAT HAD A BARE SPOT FROM RUBBING AGAINST CASING....   REPAIRED THAT AND REWRAPPED THE BAND OF WIRES.......IF I WERE TO GUESS, THAT WIRE WAS PART OF FAN, FAN RELAYS.......WE'LL SEE!!!!       ALSO TOOK EACH AND EVERY FUSE, AND RELAY OUT TO VISUALLY CHECK.....SCUFFED ALL PINS AND REPLACED........ TECH2 APPT GOT RESET FOR TOMORROW 9:30...... TX SLOWROLL...U DA MAN!
RICKYD

hey slowroll, success!!!!!  i'm into the RIM.......  all connections look clean and corrision free....  there is one big connection back there all taped up, and not connected to anything. do you know what that is?   QUESTION...should i at this point just replace the rim?..... i cant find one to exchange, so...... i found on the net, i think gmparts.com i can purchase on for $125.00 or so............. i suppose, whats another buck and a quarter after two large at this point....
is there another way to check if the rim is working properly, other than try another?
standing by
rick

Up until kam reset thread I would say yes, but when tech 2 had issues and code check had missing modules.I would recheck rear fuse box first, there isn't always corrosion to indicate problem. I have seen several fuse boxs with internal open circuits causing assorted problems in cars and trucks lately. They all use the same type box where the large connectors attach to the underside of fuse box. There are no obvious visibles signs. All set U codes

okay dude..... i'll recheck that box..... got to get out of this guys dealership...... will get back to you asap.....     that additional connector i found back by RIM, could it be a connector  for a ???? phone or something? thank you K
rick

Connector either for assembly line or export car most likely, can find no info for US car.

quote:

ORIGINAL: slowroll

Up until kam reset thread I would say yes, but when tech 2 had issues and code check had missing modules.I would recheck rear fuse box first, there isn't always corrosion to indicate problem. I have seen several fuse boxs with internal open circuits causing assorted problems in cars and trucks lately. They all use the same type box where the large connectors attach to the underside of fuse box. There are no obvious visibles signs. All set U codes

 
just got back home....going to try and check this fuse box, again tomorrow......in your opinion, what should i look for? or, should i check all fuses/ relays to make sure they are in secure, and working?.......how would one check the relays? i am able to lift it up side down.... should i spray it with cleaner?.......tx slowroll
rick

Does you manual show connecters to fuse box? Your are going to be checking orange and brown wires for 12v with key on.

quote:

ORIGINAL: slowroll

Does you manual show connecters to fuse box? Your are going to be checking orange and brown wires for 12v with key on.

 
the manual has wire diagrams...  i think i understand what to do....i'll get back with you....tx
rick

stealth, katz, stomper, g.a.r.y., flcad, the Cadillac Forum, and last but not least, slowroll....  SUCCESS with the E-Ghost dalimma......   all of you have been so patient, and considerate.....i have learned so much about the STS electrics, and how they work....  this Forum is the greatest!!!   to those that have followed this thread, over $2000. was spent on the STS to find electric issues, at three different places. then, with a lot of help from this Forum and these Techs......PROBLEM SOLVED!!!!  the rear integration module, (RIM) was the culprit.     it wasn't till slowroll mentioned the fuel gague, (1st thing to go wacky) runs thru the RIM, did it dawn on me, there are too many gremlins running for one ground/buzz-box to be the problem. 
i was at a dealer in indiana all last week, Pedigo Chevrolet. great bunch there, and real nice store.... they got the RIM for me at a reasonable price. drove home late sat. night, the STS was like a Christmas tree, 30 days before XMas..... gremlins runnin all inside the cabin....... couldn't wait till sunday morning to replace the module, was up at 6a and workin...... the car has not had one clitch sense........ THE GHOSTS ARE GONE......... Thanks to all, and the Cadillac Forum!!!
THIS THREAD IS NOW CLOSED....LAST POST..... YES......
rickyd 

quote:

ORIGINAL: rickyd

stealth, katz, stomper, g.a.r.y., flcad, the Cadillac Forum, and last but not least, slowroll....  SUCCESS with the E-Ghost dalimma......   all of you have been so patient, and considerate.....i have learned so much about the STS electrics, and how they work....  this Forum is the greatest!!!   to those that have followed this thread, over $2000. was spent on my STS electric issues. with a lot of help from this Forum and these Techs......PROBLEM SOLVED!!!!  the rear integration module, (RIM) was the culprit.     it wasn't till slowroll mentioned the fuel gague, (1st thing to go wacky) runs thru the RIM, did it dawn on me, there are too many gremlins running for one ground/buzz-box to be the problem. 
i was at a dealer in indiana all last week, Pedigo Chevrolet. great bunch there, and real nice store.... they got the RIM for me at a reasonable price. drove home late sat. night, the STS was like a Christmas tree, 30 days before XMas..... gremlins runnin all inside the cabin....... couldn't wait till sunday morning to replace the module, was up at 6a and workin...... the car has not had one clitch sense........ THE GHOSTS ARE GONE......... Thanks to all, and the Cadillac Forum!!!
THIS THREAD IS NOW CLOSED....LAST POST..... YES......
rickyd 

Dont jinx it ...
your persistance paid off.  But ghosts can be unpredicatble ..

Glad you send this ghost home ...

Thank god!!!!!!!!!!!!!!!!!

My 99 sts is doing the samething and its getting worst. Where is this (RIM) located on the car?

nate99sts....have you found the RIM?   how are you making out?   is/was it the problem?
rickyd

Maybe I missed it, but where is the RIM located?  Also, I have a 98' STS, think a RIM from a 2000 STS will work?
Thanks
This thread has given me hope that I can fix my ghosts!
Great job on this one!!

Rear Intergration Module is on left side behind rear seat back.

Is there anyway to find out if a RIM from a 2000 STS would be compatible with a '98 STS?

I just searched on gmpartsdirect under 98 and 00, two different prices, so I guess two different modules/connections?
I'm guessin that's the answer to my question.

SORRY GUYS........ CONRAD, I GOT TO YOU DIRECT. (HOW TO GET THE RIM OUT)..... IF YOU CAN LETS KEEP IT HERE.  SORRY I MISSED POST 71.....  DOING THAT WORK THING........
LET US KNOW WHATS GOIN ON
rickyd