horn dont sound when locking door
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Cadillac Seville / Cadillac Eldorado Forum Discussion, horn dont sound when locking door in Past Cadillac Vehicle Discussion; hello all, I just have a simple question, when locking the door with the keyfob there is no noise, horn ...
  1. #1
    twrtoad is offline Cadillac Owners Member
    Automobile(s): 1997 eldorado
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    horn dont sound when locking door

    hello all,
    I just have a simple question, when locking the door with the keyfob there is no noise, horn dont sound or lights flash. Is there a way to change it so when I lock it and walk away I know it locked. My wifes car when she locks it with the keyfob the horn beeps and the lights flash. Just wondering if there is a way to change it so it will do that?
    Thank you all
    Jim

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
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    Re: horn dont sound when locking door

    Read the owner's manual - personalization.

  4. #3
    N*Caddy's Avatar
    N*Caddy is online now Cadillac Owners Master
    Automobile(s): 1997 Cadillac STS (BOSE w/AUX In, Massage Seats, URPAS, "Z")
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    Re: horn dont sound when locking door

    '97 does not support this feature. It was introduced with the '98 model. Can be found on vehicles manufactured after July '97.
    In order to add this feature you need to replace the PZM (every single wire in the 2 PZM connectors needs to be re-pinned and also the plastic connectors must be replaced, look the same even from close but are slightly different, enough so can't be plugged in the new PZM) and this is the easy part. You also need to replace the IPC (and this requires no wire alteration, however it needs to be programmed for your car RPO and mileage, and also needs to be programmed in the car to understand the start enable password for the PCM). Replacing the IPC also has 1:20 chances for the VAT to match the original key so you need to replace the ignition keys too.

    To the left is the ’97 PZM and to the right is the ’98+.

    As mentioned you need to swap the plastic part of the connectors:



    More details available here:
    http://www.cadillacforums.com/forums...ml#post2597600

    You remove the wires from the original connectors and plug in the new ones (every wire goes to a totally different position, some migrate to the other connector). But in the end everything will be as before:

    And if everything is done correctly you get this features programming menu (again the IPC must be replaced too):

    And here is the result:

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