Question , 1990 Eldorado
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Cadillac Seville / Cadillac Eldorado Forum Discussion, Question , 1990 Eldorado in Past Cadillac Vehicle Discussion; Does anyone know, or has heard of, any 1990 Eldorado that has remote keyless system with a key/fob? I just ...
  1. #1
    Phideaux's Avatar
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    Question , 1990 Eldorado

    Does anyone know, or has heard of, any 1990 Eldorado that has remote keyless system with a key/fob?

    I just was wandering if it was a factory option in 1990 if it could be retro fitted to a 1990 that didn't come with it.

    Thanks guys

    Jim

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    basscatt's Avatar
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    Re: Question , 1990 Eldorado

    Quote Originally Posted by Phideaux View Post
    Does anyone know, or has heard of, any 1990 Eldorado that has remote keyless system with a key/fob?

    I just was wandering if it was a factory option in 1990 if it could be retro fitted to a 1990 that didn't come with it.

    Thanks guys

    Jim
    ============================
    I don't know if it was standard - but is was at least an option -
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    retroren1 is offline Cadillac Owners Fanatic
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    Re: Question , 1990 Eldorado

    If your car has power door locks that work then you can have an aftermarket starter/alarm/door/trunk unit installed for about $250-$300. I had one installed on my '88.
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    FiftySeriesSixtyTwo is offline Cadillac Owners Member
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    Re: Question , 1990 Eldorado

    My son’s 89 Biarritz has the remote unlock fob, but my 89 Biarritz does not. So there you go, optional in 1989.


    Sent from my iPhone using Tapatalk
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    Phideaux's Avatar
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    Re: Question , 1990 Eldorado

    Quote Originally Posted by retroren1 View Post
    If your car has power door locks that work then you can have an aftermarket starter/alarm/door/trunk unit installed for about $250-$300. I had one installed on my '88.
    Yes , it has power locks.

    It may even had a remote fob when new, I dont know how I would know this.

    I know I can lock/unlock with the key and slides on inside door.

    Can you give me more info on the system you installed?

    I see all kinds of aftermarket remote systems on amazon for 15-30 dollars.



    Jim

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    basscatt's Avatar
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    Re: Question , 1990 Eldorado

    ================================
    It may even had a remote fob when new, I dont know how I would know this.
    try this -
    look in the trunk - right near the latch assembly - for a loose GREEN wire with a plug on the end that isn't connected to anything -

    this green wire gets grounded to put the car in the PROGRAMMING mode to match a remote fob with the car -

    IF you DO have this GREEN wire - try the first 2 steps -
    Step-by-Step Programming Instructions:

    1. Insert key into ignition and turn it to the ON position. Do not start the car.
    2. Access programming connector in the trunk of the car. It will be located next to the latch for the trunk lid. There will be a single green VAC connector wire. The connector will not be connected to anything. Secure a jumper wire or paper clip to jump the connector. Touch the clip or wire to the inside of the connector and to a bare metal surface of the car to ground the connection. Locks will cycle from lock to unlock to signal entering on programming mode.
    3. Press the unlock button on the remote being programmed twice. Locks will cycle again confirming successful programming. Repeat this step for additional remotes.
    4. Remove jumper wire to exit programming mode. Test all remotes. Programming is complete.


    if the locks cycle - all you need is a fob -
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    Re: Question , 1990 Eldorado

    Thank you Basscatt,

    I will look for that tomorrow, and hope that it is there and I will ground it, if it is, and see if the locks cycle.

    fingers crossed...

    Thanks again, I'll let you know.


    Jim

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    Re: Question , 1990 Eldorado

    Quote Originally Posted by Phideaux View Post
    Thank you Basscatt,

    I will look for that tomorrow, and hope that it is there and I will ground it, if it is, and see if the locks cycle.

    fingers crossed...

    Thanks again, I'll let you know.


    Jim
    Well, shucks,
    I looked in the trunk at the trunk closer assy for a single green wire ,
    NO such luck, only the connector for the closer.

    I'm disappointed, that this awesome car did not have that remote entry option.
    With the factory continental kit, the only way to open trunk is PB in the glove compartment ,
    and the ignition key has to be in and on. Very inconvenient.

    I would still like to look into adding it.

    Thanks basscatt.


    Jim

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    Re: Question , 1990 Eldorado

    Quote Originally Posted by Phideaux View Post
    Well, shucks,
    I looked in the trunk at the trunk closer assy for a single green wire ,
    NO such luck, only the connector for the closer.

    I'm disappointed, that this awesome car did not have that remote entry option.
    With the factory continental kit, the only way to open trunk is PB in the glove compartment ,
    and the ignition key has to be in and on. Very inconvenient.

    I would still like to look into adding it.

    Thanks basscatt.


    Jim
    ========================
    too bad -
    next step would be to contact an auto stereo shop and see what they have to offer -
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    Re: Question , 1990 Eldorado

    https://www.amazon.com/FICBOX-Univer...SIN=B07PT7RVHW

    Are these for real?
    Anybody ever had any experience with one?

    I never thought about a stereo shop .
    Ill call a couple.



    Jim

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    scooter111 is offline Cadillac Owners Member
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    Re: Question , 1990 Eldorado

    I'm disappointed, that this awesome car did not have that remote entry option.
    With the factory continental kit, the only way to open trunk is PB in the glove compartment ,
    and the ignition key has to be in and on. Very inconvenient.


    As an alternative to having the key on while pushing the trunk button, I rewired mine to operate without the key in the ignition. Thus, while loadng groceries or whatever, I unlock the passenger door, push the PB in the glove box and the trunk opens. Not the most efficient way to do it but doesn't cost anything. That trunk mounted fake spare wheel looks OK but whoever designed it didn't make any provision for unlocking the trunk with the key.

    I also made an extension piece brazed to a trunk key to add the necessary length to reach the lock cylinder through the spokes on the fake cover. PITA to carry around in your pocket for when you want to open the trunk but I did it for gigs and whistles while the car is in the garage for repairs. That is when it is the most convenient without constantly running around opening doors to access the PB.
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    Re: Question , 1990 Eldorado

    In my feeble minded way....I just gotta think that there is a wireless relay/reciever of some sort , that a person could wire into that whole door lock, and trunk lock circuit to wirelessly operate it.

    I have electronics experience from the 70s and 80s , but wireless came later, after I retired from it.

    Maybe I will just do some research in that direction,

    I just remembered that I bought 2 of these little gizmos , 2 years ago, to operate a LED light bar on my truck,
    I remember they were under $3 each, that's why I got 2.
    and it works great to control the light bar, up to 12 amp.

    IMG_20190522_150033311_HDR.jpg

    Just wire the little receiver inline with whatever, .

    I am thinking (out loud) that I could wire it inline to the necessary wire of the trunk operator, and it would open.....just gotta push again to turn it off.... hmm.

    May even be able to buy one that actually does a momentary pulse.


    Any thoughts??
    https://www.walmart.com/ip/Smart-Hom...xoC42YQAvD_BwE

    Jim

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    Phideaux's Avatar
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    Re: Question , 1990 Eldorado

    Ok , did a little snooping in the car.

    The push button switch in glove compartment has a blk wire coming from ignition (hot when key is on) and a blk wire that goes directly to the trunk release solenoid.

    I'm thinking, if I run a hot wire to the switch in glove compartment and
    Basically parallel a wireless switch to the one in glove box, I got a wireless trunk release.

    and, if I find a wireless remote switch with 2 functions, i could do the same thing with the door locks.

    Jim

  15. #14
    sefiro's Avatar
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    Re: Question , 1990 Eldorado

    Yes on the first

    You need to check if the original switches are controlling the 12v+ wire or the ground. Then run wire accordingly.
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    Re: Question , 1990 Eldorado

    Quote Originally Posted by sefiro View Post
    Yes on the first

    You need to check if the original switches are controlling the 12v+ wire or the ground. Then run wire accordingly.
    I was concerned about that also.
    So I dug thru the 3" thick Service manual , and found the electrical schematic for that glove box switch and release solenoid,
    It is switching the 12V+ wire not ground.

    Thanks for the reminder though.

    I will do the wiring change, and add 2 wires parallel to PB switch ....then test by touching the wires together ....if that works, ( no reason it shouldn't)I will be ordering a wireless switch, hope I can find a 2 function(2 button) switch.


    Jim

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