1. for access to reviews and discussion of the 2016 and 2017 Ford Explorer, Tech Tips, How to Articles, Off-Road Modification, Events, and more!

    Register Today It's free! This box will disappear once registered!

door lock wiring diagram

Discussion in 'Stock 1995 - 2001 Explorers' started by Premier, January 3, 2009.

  • Searches ExplorerForum.com
    1. Premier

      Premier Explorer Addict

      Joined:
      June 10, 2003
      Messages:
      5,252
      Likes Received:
      1
      Trophy Points:
      0
      City, State:
      Utah
      Year and Model:
      96 sport
      so i wake up and my door locks are going crazy! they just keep unlocking. i searched the forum and someone said the relay was in the back cargo area on the driver side. there are 4 relays in there and im not sure what one is bad. so i pulled them so i could drive around and not have it going crazy. ofcourse this has to happen when its 20 degrees outside..

      does anyone have some sort of a diagram that shows what relay controls what function back there? i checked my haynes manual, but no such luck
       
    2. Support EF


      Join the Elite Explorers for $20 a year

      Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose and fix problems yourself, and learn which modifications work without having to experiment on your own. Elite Explorer members see practically no ads, add your own profile photo, upload photo attachments directly to your posts and Media Gallery, create more private Conversations, and more. Join Today. Your support is greatly appreciated.



      to hide adverts.
    3. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
      3 of the relays are for Door Lock and Unlock, the 4th one is for trailer tow. I couldn't find a connector diagram for the relay box, but you should be able to figure out which is which from the color codes on the wiring. The diagrams are for 97, but should be the same.
       

      Attached Files:

    4. Premier

      Premier Explorer Addict

      Joined:
      June 10, 2003
      Messages:
      5,252
      Likes Received:
      1
      Trophy Points:
      0
      City, State:
      Utah
      Year and Model:
      96 sport
      thanks so much!! i will get pics of the relay tomorrow.

      i guess i just take out the relay and plug a new one in to see if it fixes it, and go through a trial error order? is it possible that more than one went bad?
       
    5. Premier

      Premier Explorer Addict

      Joined:
      June 10, 2003
      Messages:
      5,252
      Likes Received:
      1
      Trophy Points:
      0
      City, State:
      Utah
      Year and Model:
      96 sport
      and to tell colors its just the bk/w - bk/y (black/white or black yellow)? just want to make sure im reading this right
       
    6. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
      First color is the body of the wire, second color is the color of the stripe (if any).
       

      Attached Files:

    7. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4

      Possible, but doesn't seem likely. But, depending upon how much they charge for a new relay, it might be worth replacing the others just so you don't have to take the interior trim apart again.
       
    8. Premier

      Premier Explorer Addict

      Joined:
      June 10, 2003
      Messages:
      5,252
      Likes Received:
      1
      Trophy Points:
      0
      City, State:
      Utah
      Year and Model:
      96 sport
      yea, i will price them tomorrow. i might go to a pick and pull and just grab some used ones too (lost my job so money is tight). they are all the same i think
       
    9. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
      Sorry about your job. I lost my job back in Oct. They shut down the company.

      It looks like the relays are the same, although the drivers door unlock relay might be different; the terminals are labeled differently on the schematic compared to the other two. I'm not sure if that is because the relays are different or not.
       
    10. Premier

      Premier Explorer Addict

      Joined:
      June 10, 2003
      Messages:
      5,252
      Likes Received:
      1
      Trophy Points:
      0
      City, State:
      Utah
      Year and Model:
      96 sport
      mine couldnt make payroll. that was in oct as well. trying to find something, and if i cant i have thought about the military *sigh*

      i will look at them and make sure. they all looked the same when i pulled them out.
       
    11. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
      I'm too old for the military. I had an interview with the state DOT for an Equipment Engineer job, but with the Calif budget mess, who knows if they will ever hire anyone. I am taking classes in SolidWorks (solid modeling software) and AutoCad because we didn't use either of those at my last job, but most of the Mech Engineering openings require one or both.

      I'm hoping things will pickup in Jan, especially after the inauguration.

      Luckily, my GF is still employed but she has been having health issues since I lost my job.

      Hang in there, something will work out. :)
       
    12. budwich

      budwich Well-Known Member

      Joined:
      May 4, 2005
      Messages:
      3,246
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Ottawa, Ont
      Year and Model:
      96 XL
      it is not likely a relay problem so unless you can take it back, I would save your money.... OR spend it on a meter.
       
    13. Premier

      Premier Explorer Addict

      Joined:
      June 10, 2003
      Messages:
      5,252
      Likes Received:
      1
      Trophy Points:
      0
      City, State:
      Utah
      Year and Model:
      96 sport
      well, whats your opinion? do you have a suggestion?
       
    14. budwich

      budwich Well-Known Member

      Joined:
      May 4, 2005
      Messages:
      3,246
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Ottawa, Ont
      Year and Model:
      96 XL
      Well, I thought my "opinion" was pretty straight forward... ie. get a meter and measure some things associated with the activation of the relay. Basically, in my opinion, it isn't a relay problem... because the relay is "working" and causing your doors to lock... that's its job. Your problem is something "telling" the relay to operate. That is usually a shorted wire causing a ground condition on the relay coil or a bad switch... first guess would be the cargo switch bad but again, a meter can be used to measure where the "telling" is coming from.
       
    15. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
      Here is the rest of the door lock schematic in case you want to troubleshoot the switches. I haven't had this problem, but I'm inclined to agree that it probably isn't the relay after thinking about it. It is probably a bad switch or possibly a bad ground.
       

      Attached Files:

    16. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
      I ran across the Relay Box pinout drawing. Did you figure this out yet?
       

      Attached Files:

    17. Premier

      Premier Explorer Addict

      Joined:
      June 10, 2003
      Messages:
      5,252
      Likes Received:
      1
      Trophy Points:
      0
      City, State:
      Utah
      Year and Model:
      96 sport
      not 100% sure yet. i lost the relay i took out (so the doors would stop freakin out). but i used the interior lamp relay, and plugged it in where the other should have been. the door locks would not unlock very well.

      so i started unplugging the switches themselves.. and i think i found the culprit. driver side unlock/lock switch. when its unplugged and the relays are in the lock/unlock spots, it works great. i will go to the scrap yard tomorrow and see if i can get another switch and relay.

      here is the culprit
       

      Attached Files:

    18. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
      I'd try and find the newest 2nd gen switch I could. Good luck.
       
    19. hazmat456

      hazmat456 Active Member

      Joined:
      May 27, 2007
      Messages:
      191
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      tomah wi
      Year and Model:
      1997 mercury mountaineer
      mine did this too, unlocks itself over and over my problem was ... wet boots. The wire run under the drivers door got wet and the unlock wire was shorting to ground. also check the wires in the boot to the drivers door they are known to have issues, a chafed wire there will do the same thing. I'm sure that your relays are fine
       
    20. solitary ogre

      solitary ogre Active Member

      Joined:
      October 13, 2008
      Messages:
      184
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Surrey, B.C.
      Year and Model:
      '91 explorer, '88 bll
      i believe there is a master and slave door lock switch. look at the alignment tab for the switch. the slave will have a brown paint mark on it and the master is black like the plastic body.
      perhaps a good idea to take one from a donor vehicle from the same side you need it on.
       
    21. Premier

      Premier Explorer Addict

      Joined:
      June 10, 2003
      Messages:
      5,252
      Likes Received:
      1
      Trophy Points:
      0
      City, State:
      Utah
      Year and Model:
      96 sport
      the junk yard only had one 2nd gen there.. and it was a passenger side switch(no driver door). it fits, but its upside down.. i also replaced the relay from one i pulled out of the x at the junkyard.

      everything works great!! only problem was i am getting a door ajar light now.. unhooked the sensor for the back hatch glass, and that seems to have fixed the problem. its acted up before, but this time i couldnt get it to go off
       
    22. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
    23. Cobraguy

      Cobraguy Elite Explorer

      Joined:
      February 22, 2008
      Messages:
      2,509
      Likes Received:
      0
      Trophy Points:
      36
      City, State:
      Phoenix...Greatest City on Earth
      Year and Model:
      1995 EB & 1999 EB 5.0
      Haven't we seen the RAP module cause this exact issue too?
       
    24. hazmat456

      hazmat456 Active Member

      Joined:
      May 27, 2007
      Messages:
      191
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      tomah wi
      Year and Model:
      1997 mercury mountaineer
      ok I'm having this problem again! I've tried everything that I can think of to find the problem. I've disconnected the wire harness to every door one at a time, so it's not any one switch or actuator, everything works the way it is susposed to except the theft light and I even tested the bulb and that is good, every time I think I find the problem I wait a few minutes and they will unlock again. So now I'm looking at a modual replacement, but which one the RAP or the GEM??? is there any way to test the modual itself without taking it to ford?
       
    25. hazmat456

      hazmat456 Active Member

      Joined:
      May 27, 2007
      Messages:
      191
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      tomah wi
      Year and Model:
      1997 mercury mountaineer
      update: I disconnected the RAP in the back quarter panel, locks still cycled on there own,
      disconnected the GEM behind the radio bezel,locks still cycled.
      anywhere I could find a connection I took apart and cleaned with electrical contact cleaner, went through the wire harness in the doors separated wires made sure they were clean and sprayed with silicone,swapped out the relays.
      I can't seem to find a problem,yet the doors keep unlocking and dome light comes on the only way to make it stop is to pull all three relays in the rear quarter.
      Dose anyone have any advice for me please?
       
    26. dogfriend

      dogfriend Human-Animal Hybrid

      Joined:
      July 22, 2002
      Messages:
      7,565
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Carmichael, CA
      Year and Model:
      '97 Sport 4x4
      Sounds like a bad or loose ground to me. I would check the ground nearest to the switch in each door.
       

      Attached Files:

    Share This Page








    We Support Our Troops!