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1998 Cadillac DeVille Question: trouble codes



, Fallon, NV, April 04, 2010, 23:41

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

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  • Medium-star Best Answer
    April 04, 2010, 23:49

    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.


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  • Answer #2

    April 04, 2010, 23:53

    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.

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