Radio/trunk/fuel door malfunctions

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Cadillac Catera and Cimarron Forum Discussion, Radio/trunk/fuel door malfunctions in Past Cadillac Vehicle Discussion; I have had my 2000 catera for about a year and I have always had problems with the fuel door ...
  1. #1
    dextertp_2011 is offline Cadillac Owners Member
    Automobile(s): 2000 Cadillac Catera
    Join Date
    Nov 2012

    Radio/trunk/fuel door malfunctions

    I have had my 2000 catera for about a year and I have always had problems with the fuel door the trunk and my radio turning on at odd times and shutting off. I really want to listen to my radio without it going out, but am not sure where to start. I have read several posts about this same problem, and there solution was the body control module was bad. If this is the case where exactly to the detail is this part located, and where can I find a trustworthy place to find the new part. If anyone knows where or how I can fix this problem I would love an answer thank you to anyone that can help.

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  3. #2
    investor74 is offline Cadillac Owners Enthusiast
    Automobile(s): '97 Forest Green Catera
    Join Date
    Nov 2005

    Re: Radio/trunk/fuel door malfunctions

    First check your K134 multifunction module. It is a small box located under the steering wheel near the fuse box.

    Go to and do a parts search for factory part number 90494163. It's around $60. Otherwise, the dealer would be able to get you one.

  4. #3
    hgqguy's Avatar
    hgqguy is offline Cadillac Owners Fanatic
    Automobile(s): catera
    Join Date
    Nov 2009
    Rochester NY

    Re: Radio/trunk/fuel door malfunctions

    imagin there is an ebrake pedal, lay under your dash with the back of your head where that pedal would be sorta like you are looking at the back of the headlight switch. the grey box is the relay that is you problem 100%

  5. #4
    Smark is offline Cadillac Owners Member
    Join Date
    Jul 2011

    Re: Radio/trunk/fuel door malfunctions

    Can confirm that this is very likely the K134. If you have a soldering iron you can resolder all the joints and it may fix your problem. If not the part is only $60 and can be installed without tools, except maybe a flat head screwdriver or a quarter to take off the panel above the brake pedal.

  6. #5
    gvjv3 is offline Awaiting Email Confirmation
    Automobile(s): 97 forest Green catera
    Join Date
    May 2012

    Re: Radio/trunk/fuel door malfunctions

    it is like what they say but alittle harder to find, take the panel off below your steering wheel, look for the fuses closes to the door, then reach in pass the fuses towards the door and grab a light gray box, it clips on so you have to lift it up and out, once you have it out you can open it up and repair the solder connecting ( which I did) or replace it with a new one, ether way when you put it back in, I didnt clip it back on, I just let it hang there with the wires holding it up, its my opinion that its the shutting of the door many times over time that causes the connections to crack.

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