1. Welcome to 4Runners.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all 4Runner discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other 4Runner owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

I love my 4Runner but... Electrical gremlins are driving me nuts!

Discussion in '3rd Gen 4Runners (1996-2002)' started by Hiddenmountain63, Oct 13, 2021.

  1. Oct 13, 2021 at 1:40 PM
    #1
    Hiddenmountain63

    Hiddenmountain63 [OP] New Member

    Joined:
    Oct 13, 2021
    Member:
    #23789
    Messages:
    5
    Gender:
    Male
    BC Canada
    Vehicle:
    2000 4Runner, 4 Banger, 5 Speed
    Effing mice! It's been a slow process of little things not working. First it was the power windows and door locks. The expensive 30A fuse kept blowing, but I couldn't find the problem. Then my brake lights stopped working. And the big one was when I pulled the E brake on and the wire to the micro switch fried! I had to yank the battery positive to keep it from burning up!
    So I've yanked the dash apart. Lo and behold, a mouse nest behind the defrost ducting. The little bastards gnawed on the wires...

    It has melted wires and plug to the center junction block, but do you think I can find anything on the interwebs about that junction block? Nope. So, I've jerry rigged the wiring and managed to get nowhere. The dash is stripped and I have to be at work tomorrow morning. No stress here!

    I know I'm new here.. (Hi all) and haven't introduced myself yet... (I'm Jon) but I desperately need some advise and/or a link or two to the wiring diagrams for this thing.

    I live way off the grid, and this is my only transportation, so any help will be much appreciated!
     
  2. Oct 13, 2021 at 1:49 PM
    #2
    Hiddenmountain63

    Hiddenmountain63 [OP] New Member

    Joined:
    Oct 13, 2021
    Member:
    #23789
    Messages:
    5
    Gender:
    Male
    BC Canada
    Vehicle:
    2000 4Runner, 4 Banger, 5 Speed
  3. Oct 13, 2021 at 2:09 PM
    #3
    BroRunner

    BroRunner New Member

    Joined:
    Aug 5, 2015
    Member:
    #828
    Messages:
    58
    Gender:
    Male
    Vehicle:
    2015 4Runner Trail Edition
    You poor soul. I've found a few factory service manual links from another forum. I've shared the links below and where I think you will find your information. I hope this helps.

    https://home.69thstreetgarage.com/p/toyota.html - at about page 2000 the wiring diagrams start

    https://www.ether3al.com/runner96-02fsm/ - this one is online webpage version - click on wiring, then component location and determine which part you want info on, then back up one level and look for that component. Or click wiring, and then overall electrical diagram.

    https://drive.google.com/drive/folders/1QIjRuWxylUyfmSA_N-6C-Sy7O0g1ScwL - chapter 33 is electrical but I don't see wiring diagrams at first glance
     
    Moon Landing likes this.
  4. Oct 13, 2021 at 2:36 PM
    #4
    Hiddenmountain63

    Hiddenmountain63 [OP] New Member

    Joined:
    Oct 13, 2021
    Member:
    #23789
    Messages:
    5
    Gender:
    Male
    BC Canada
    Vehicle:
    2000 4Runner, 4 Banger, 5 Speed
    Thank you BroRunner! I'm digging into this now... fingers crossed


     
  5. Oct 13, 2021 at 2:37 PM
    #5
    GrantA

    GrantA Enjoying God’s creation

    Joined:
    May 25, 2020
    Member:
    #14533
    Messages:
    472
    Gender:
    Male
    North Carolina
    Vehicle:
    2020 SR5 Premium
    - GOBI roof rack and ladder - Westcott Design Rock sliders - M.O.R.E. Underbody Skid plates - Dual ARB air compressor & ARB single compressor - LED interior lighting - Ironman 2.0 meter awning and enclosure - Ironman winch with factor55 hook - Ironman foam cell pro suspension - Ironman recovery snatch rope - Ironman recovery traction boards - lilbscustomfab Hybrid Front Bumper - lilbscustomfab BMC - RRW RR7-H Hybrid Beadlock wheels - Nitto Trail Grapplers 285/75/17 M/T - 4.88 gears - ARB front air locker - ARB rear air locker - Hi-lift jack & mount - Sony aftermarket speakers - LASFIT External LED Light Conversion - Center console organizer - Glovebox organizer - ICS phone Mount holder - C4 rear bumper with dual swing arms - C4 gas skid plate - C4 rear diff skid plates
    Oh man that sucks hard core. Glad you found the mouse stuff before it got worse. Make sure to put mouse traps in your car just in case and try and find the entrance and seal it off.

    Anyways I know this sounds like common sense but what about just wiring to the matching colors since it appears each cable is color coated? I know that is not always as easy said as done since some of the colors can look the same.

    How many wires did they chew through? If not many you can try to strip the wires back that were chewed and just wire them together temporarily to make sure it works.

    I wish you the best of luck. Here is the website I use but I don’t believe it has electrical specs:
    http://www.to4runner.net/toyota_4runner_service_manual-242.html
     
  6. Oct 13, 2021 at 2:44 PM
    #6
    Hiddenmountain63

    Hiddenmountain63 [OP] New Member

    Joined:
    Oct 13, 2021
    Member:
    #23789
    Messages:
    5
    Gender:
    Male
    BC Canada
    Vehicle:
    2000 4Runner, 4 Banger, 5 Speed
    Thanks for the reply GrantA.

    It's hard to tell how many they got because they were all melted together. Five or six anyway... I cut the damaged wires out and soldered new ones in. But it hasn't fixed anything and I don't want to dig any deeper! I can start the thing so I can drive it, sans dashboard, but at least I can get to work. I've got 10 miles of very rough road in and out of here, so hopefully things don't get worse!


     
    GrantA likes this.
  7. Oct 13, 2021 at 4:09 PM
    #7
    Hiddenmountain63

    Hiddenmountain63 [OP] New Member

    Joined:
    Oct 13, 2021
    Member:
    #23789
    Messages:
    5
    Gender:
    Male
    BC Canada
    Vehicle:
    2000 4Runner, 4 Banger, 5 Speed
    :annoyed::confused: I have cold beer in the fridge and it's probably not a good idea to start on that right now!

    Ho Lee Crap, my poor brain is on overload with this mess.

    I sure appreciate the links guys but dang, this isn't my specialty!
     

Products Discussed in

To Top