2001 Eldorado ignition problems
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Cadillac Seville / Cadillac Eldorado Forum Discussion, 2001 Eldorado ignition problems in Past Cadillac Vehicle Discussion; Hi everyone. I have an Eldorado with intermittent ignition issues. Sometimes when attempting to start, I turn the key and ...
  1. #1
    dustytrails is offline Cadillac Owners Member
    Automobile(s): 2001 Eldorado, white diamond, 91k.
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    2001 Eldorado ignition problems

    Hi everyone. I have an Eldorado with intermittent ignition issues. Sometimes when attempting to start, I turn the key and get no cranking. However all the rest of the car powers up, air, radio, gauges, Ect. After many attempts at starting, it will eventually cranks and fire up smoothly. I have not found the secret as to why it only does this. Help!

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: 2001 Eldorado ignition problems

    Just above this post is a thread "How to pull codes". Study your car's section for how to get trouble codes from the car's built-in scanner memory. Pull your codes, write them all down whether each is Current or History. Return to the sticky to open the link with "obd2" in the address. Decipher all your P, B, C, and U codes and post them all here.

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    dustytrails is offline Cadillac Owners Member
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    Re: 2001 Eldorado ignition problems

    Found a couple codes. B0533, B2120. Both say current. Others say no codes, but I will scroll thru them again because they go fast. Thanks for the help.

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: 2001 Eldorado ignition problems

    FWIW, B codes (Body) have nothing to do with engine/powertrain operation.

    Post definitions .................

  6. #5
    dustytrails is offline Cadillac Owners Member
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    Re: 2001 Eldorado ignition problems

    Definitions? Not sure what you mean. Is there a way to pause the codes as they scroll thru? Some say: history, with a code.

  7. #6
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    Definitions, as in what the codes mean.

    Quote Originally Posted by Submariner409
    ...Return to the sticky to open the link with "obd2" in the address. Decipher all your P, B, C, and U codes and post them all here.
    And no, no pausing or scrolling.

  8. #7
    98cadillac is offline Cadillac Owners Fanatic
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    Re: 2001 Eldorado ignition problems

    Quote Originally Posted by dustytrails View Post
    Definitions? Not sure what you mean. Is there a way to pause the codes as they scroll thru? Some say: history, with a code.
    If the 2001 Eldorado follows the same procedure as the 1998 Seville, you can review each category of codes individually (such as all PCM codes), but you can't scroll or pause within the category.

    What you described is exactly what happened to me when my starter was going bad. Apparently there are "bad spots" in the starter, and each time you try to start it, it turns a little bit until it finally lands on a "good spot" and starts.

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    Ranger's Avatar
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    Re: 2001 Eldorado ignition problems

    Do you hear any clicking when you turn the key or just silence? What is the battery voltage, both static and while cranking? Are the battery terminals clean and tight?

  10. #9
    dustytrails is offline Cadillac Owners Member
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    Re: 2001 Eldorado ignition problems

    no sounds at all, i will have to check on the voltage.

    ----------

    What i found so far:
    RFA-U1064-history = loss of communicatios with DIM
    PZM-B0533-current = fuel sensor open/shorted to B+
    PZM-B1558-history = BCM EPROM checksum error
    MSM-B2120-history = Lumbar up/dowm sensor fail
    PCM-B1552-history = keep alive memory
    PCM-P0340-history = Camshaft Position Sensor circuit (CMP)

  11. #10
    98cadillac is offline Cadillac Owners Fanatic
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    Re: 2001 Eldorado ignition problems

    I didn't hear any clicking either when my starter was going bad.

  12. #11
    dustytrails is offline Cadillac Owners Member
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    A quick update on the intermittent starting on my 2001 Eldorado. I took it to a reputable mechanic and dropped it off on a Sunday eve. When he went out on Monday morning to bring it into his shop. No ignition! So he manages to get it into his shop somehow and gets his equipment connected. From that time forward, flawless starting. Figures. Anyway he said his gut feeling would be the starter. So I had him replace it and its been fine ever since. Not one failure. And also he bypassed the security key diode to eliminate that possibility. Thanks for your input and maybe this will help someone else with a similar case.

  13. #12
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: 2001 Eldorado ignition problems

    So now you have determined that there's a 50/50 chance that it was either the starter or the PK3 system.

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