Looking for a little advice - Keys and TheftLock
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Looking for a little advice - Keys and TheftLock in Past Cadillac Vehicle Discussion; So I just got my 2000 Cadillac Deville Base with 77K miles. And yesterday I got in turned my car ...
  1. #1
    justinglock401 is offline Cadillac Owners Member
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    Looking for a little advice - Keys and TheftLock

    So I just got my 2000 Cadillac Deville Base with 77K miles. And yesterday I got in turned my car on and got the security light was solid illuminated and a message on the DIC said Service Theft System. So I turned the car off and restarted it. No messages. So just now it happened again leaving five guys and same thing turning off cleared the message. So when I got home I pulled the VTD codes and

    Got
    B1009 EEPROM Checksum Error,
    B2734 Coded Key Controller Memory Failure
    B2960 Sec Sys Sensor Data Incorrect but Valid

    as history. No VTD currents.

    Any suggestions? Thanks in advanced.

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  3. #2
    CadillacLuke24's Avatar
    CadillacLuke24 is offline Cadillac Owners Connoisseur
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    Re: Looking for a little advice as to where to start

    My guess wold be, after 13 years of use and abuse, the VATS system (reads the pellet on your key) may be in the early stages of failure. Snoop around on the forums, there's ways of fixing it (new wires or a resistor).

  4. #3
    justinglock401 is offline Cadillac Owners Member
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    I looked around prior top posting and all I was someone spray WD-40 in the keyhole

  5. #4
    13ir14314's Avatar
    13ir14314 is offline Cadillac Owners Fanatic
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    Quote Originally Posted by CadillacLuke24 View Post
    My guess wold be, after 13 years of use and abuse, the VATS system (reads the pellet on your key) may be in the early stages of failure. Snoop around on the forums, there's ways of fixing it (new wires or a resistor).
    The 2000 Deville doesn't have vats but rather the PK3 system no pellet in key or resistor bypass.

  6. #5
    justinglock401 is offline Cadillac Owners Member
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    So what would you suggest I do in this case?

  7. #6
    13ir14314's Avatar
    13ir14314 is offline Cadillac Owners Fanatic
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    Those codes point to a bad module but before replacing that I would suggest trying another key.

  8. #7
    justinglock401 is offline Cadillac Owners Member
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    So use the number 2 key and if persistent what module would this be indicative of?

  9. #8
    13ir14314's Avatar
    13ir14314 is offline Cadillac Owners Fanatic
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    I haven't had a chance to look at my fsm yet but the module you are looking for is under the ignition key cylinder behind that rubber cover. I saw your new thread of codes and those still point to a bad module. I will let you know what I found out in the fsm when I get to it.

  10. #9
    justinglock401 is offline Cadillac Owners Member
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    Ok thanks a lot! Hopefully it will pinpoint the module for me.

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