1998 Cadillac DeVille Q&A
1998 Cadillac DeVille Question: trouble codes
what does code for the PCM, P1605, B2711 IPC, U1255, U1252 PZM, U1169 IRS, 1983 MSM, B0856,B1983, U1300, U1064, U1406, U1169 Thank you. Rev. Miller - Visitor
unusal to have so many codes. take it to a pro and he will look at freeze frame data and make a decision as to where your problem lies. my money is on a body control module. Roy - mastertech6371
Hello Reverend, With this many codes it really presents a problem with forming the correct diagnosis approach. If I were working on this, I would record as much data as I could, then erase the codes, drive the car and see which return. Then I would look at the actual problems you are experiencing, and all the old and new code info and devise a diagnosis strategy. This may not help you much, but what I'm really saying is this needs to go to a highly qualified tech that can address computer issues on this vehicle. - Bret Bodas
I have a problem the car runs fine until it warms up then it runs with a mis when I hooked up the code meter it told me that both banks of cylinders were burning lean and I had random cylinder misf...
When warm at operating temp going up hill between 39-43 MPH car seems to shudder and feels like driving over rough road than goes away.
How do you find the trouble codes?
What should I try first?? Cleaning the Mass flow sensor?? I don't have any leaks or anything else causing these codes.My housing for air filter is not secured to the pegs that hold it in place how...
Please provide a definition of the troubled codes and issues causing them, and repairs required. Thanks