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Grey wire mod

Discussion in '1st Gen. Tacomas (1995-2004)' started by 2003greenbean, Dec 8, 2007.

  1. Aug 14, 2016 at 8:51 AM
    #561
    indetrucks

    indetrucks Well-Known Member

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    So to clarify, I am grounding the grey wire that goes into the 4wd CPU and NOT the wire that goes back in to the harness correct?

    Sorry, just want to be 100% before I do this.
     
  2. Aug 16, 2016 at 2:53 PM
    #562
    Silver02Taco

    Silver02Taco #DevilHornGang

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    Correct. The end going into the wiring harness should be capped off (or taped) prior to re-sealing the harness.
     
  3. Aug 17, 2016 at 3:08 AM
    #563
    indetrucks

    indetrucks Well-Known Member

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    Thank you sir!
     
  4. Nov 15, 2016 at 2:14 PM
    #564
    MainerDave19995VZ

    MainerDave19995VZ Well-Known Member

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    I noticed the rear diff locker button when I bought the truck in Florida last October. I think I pushed the button in 4 low to see if I could figure out what it did during my test drive. That was the last time I pushed the button. Until today. Today I decided that the grey wire mod would rise to the top of my list and so I read this entire thread. This took some time and, as usual, I learned a ton! Earlier in the day I confirmed what I knew. I do not have ABS brakes. So, one less light to look at. Just now I went out to see if the locker even works. Went out and started the truck and pulled off the pavement and onto some spongy wet grass and woodchips. Put truck in 4 high then 4 low and drove back and forth and then hit the rear locker button while in 4 low. Blink, Blink, Blink...... Never went solid. Figured maybe I'm going to have to service it. But, I had read the entire thread so I drive back and forth with the locker light blinking all the while in 4 low. No dice. Just keeps blinking. I think that maybe this thing has never even been locked. Undeterred I kept driving back and forth in 4 low and then the light stops blinking...stays solid. I take it out of 4 wheel drive and light starts to blink but that slower blink. I put it in 2 hi and drive down the road and back. Pull onto the grass again and go to 4 lo. Hit the locker and blink blink blink...no dice. Start to drive forward and backward and then bingo! Solid light again. Third time through all this the light went solid instantly upon pressing the locker button. So, tomorrow when the sun is out I'm going to do the grey wire mod! My primary reason is that I get stuck in the least bit off snow when on a slight grade and I just need a little more traction to get moving and then I'm good. After 17 years the rear differential locker is now going to get used at least a dozen times a year. And honestly, if I ever sell the truck, I'm pretty sure that showing this to a buyer is going to make a good impression. THANK YOU to all the posters on this thread who made this whole process understandable. My advice to newbies is to read the whole thread. Then check to see that you have or don't have ABS just so you know what to expect with lights on the dashboard. Cycle your diff locker a few times so you know that it works and how long it takes and all that. Then do the mod. I'll post up my mod photos as soon as I'm done.
     
    TacoSupremeo and Bulldogs129 like this.
  5. Nov 16, 2016 at 6:48 AM
    #565
    Bulldogs129

    Bulldogs129 Don't find fault, find a remedy

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    Mine is doing the exact same thing. I'll start reading the thread asap. Thanks for posting your truck symptoms.
     
    MainerDave19995VZ likes this.
  6. Nov 16, 2016 at 7:08 AM
    #566
    cynicalrider

    cynicalrider #NFG

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    Good to hear you had success! These lockers definitely can go bad if unused. Keep using it and you will likely not have issues.
     
    MainerDave19995VZ likes this.
  7. Nov 17, 2016 at 10:05 PM
    #567
    taco03Trd

    taco03Trd Doble cab trd v6 now

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    Carlos
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    Non yet
    Can i do this mod on my 2wd trd with elocker? and is it the same color wire aim looking for ? (grey)
    Any help with be a preciated
     
  8. Nov 18, 2016 at 9:57 AM
    #568
    Bulldogs129

    Bulldogs129 Don't find fault, find a remedy

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    Fall cleaning shop- haul mode

    IMG_6412.jpg
    IMG_6413.jpg
     
  9. Nov 18, 2016 at 12:32 PM
    #569
    Silver02Taco

    Silver02Taco #DevilHornGang

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    If you have a Pre-Runner, there's no need to do this Mod. Anytime you press the button, the locker will lock. This mod is only for 4WD Tacomas who want to have the same locking differentail functionality that Pre-Runner's have.
     
    Sicyota04 likes this.
  10. Nov 18, 2016 at 1:52 PM
    #570
    taco03Trd

    taco03Trd Doble cab trd v6 now

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    Ooo i see them there something wrong with mine . cuz went i press my button nothing happens . or do i need to be stuck for the locker to activate ?

    Thanks for the reply. silver 02
     
  11. Nov 19, 2016 at 2:44 PM
    #571
    James Lee

    James Lee 1st gen for the win.

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    How fast can you drive with the e locker engaged in 2wd? Can I be able to drive it on the freeway with it on?
     
  12. Nov 19, 2016 at 2:48 PM
    #572
    ekul310

    ekul310 Lurker

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    Can and should are two different things. You CAN drive with it engaged at freeway speeds, however, you SHOULD not. The locker by design does not allow the rear wheels to spin at different speeds. When you turn even slightly the outside wheel needs to spin faster than the inside wheel. With the locker engaged it will bind if turning on a hard surface increasing tire wear dramatically.
     
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  13. Nov 19, 2016 at 3:03 PM
    #573
    David K

    David K Well-Known Member

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    Instead of driving back and forth and hoping it will lock (stop blinking), try (from a stop) turning your steering wheel all the way to the left (or to the right) and begin to roll forward. It should stop blinking within a foot or two!

    This mod is for 4WD Tacomas only (who only have locker available in L4) so they can have a locker in H4 and H2 (2WD). Obviously, 2WD Tacomas don't need the mod since the locker (if equipped) works in 2WD.

    The locker is for getting unstuck. If you are on a paved road, driving fast, etc. YOU ARE NOT STUCK!
    Use it when you begin to have tire spin or before crossing deep mud or climbing a steep, dirt grade where you anticipate tire spin.

    As stated, when locked, the back tires can not rotate at different speeds, as they must when turning. If they can't slip in a turn then you risk damage, or if at a high speed: losing control! Please don't give Toyota a reason to discontinue the locker because you did something stupid and killed yourself!
     
  14. Nov 20, 2016 at 8:12 AM
    #574
    MainerDave19995VZ

    MainerDave19995VZ Well-Known Member

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    I'm going to try the wheel all the way left or right suggestion. I find that now that I've used it a few times it is locking much faster but I do need to roll forward or backward a couple feet at a minimum. I'll let you know if it seems faster with the steering wheel all the way over. Thanks for the tip!
     
  15. Nov 20, 2016 at 10:06 AM
    #575
    David K

    David K Well-Known Member

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    De nada! It was something I learned here on TW, and it worked every time. Mind you, I don't use the locker except for testing because my truck has the A-TRAC system which "auto-locks" both the front and back if there is tire spin on either end.
     
  16. Jan 13, 2017 at 6:39 AM
    #576
    retroboy1989

    retroboy1989 Single Cab 4x4

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    No can do, I gave up at page 3. One of the more painful reads on this website. "Will this work on a pre runner?" "Will this work if I don't have a locker?" "Can I add a switch so I can unlock the diff?"
     
  17. Jan 13, 2017 at 9:30 AM
    #577
    Sicyota04

    Sicyota04 Slowly but surely.

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    It's a mod. to be able to use your rear locker in 4hi since you can only use your rear locker in 4lo. If you don't have a locker you can't do the grey wire mod. Since it's meant to do what I described above. If you have a prerunner, you don't have 4 wheel drive so you don't need to do it either. Cause prerunner's already have a button to push to use your rear locker and you don't have to worry about 4hi or low.
     
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  18. Jan 13, 2017 at 12:44 PM
    #578
    retroboy1989

    retroboy1989 Single Cab 4x4

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    I think you missed my point..... I was not asking those questions. I was quoting them from what I read in the first 3 pages of this thread. I gave up on reading this thread because of questions like that.
     
  19. Jan 17, 2017 at 5:02 PM
    #579
    obs ham

    obs ham Well-Known Member

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    Dont let that magic smoke out of the wire
     
  20. Jan 19, 2017 at 10:43 PM
    #580
    E30325

    E30325 Well-Known Member

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    Okay random question that may be answered in the thread (sorry I haven't read it)

    I did the grey wire mod the day after I bought my truck so this doesn't apply to me, but I thinking the other day and curiousity made me wonder the following..

    So we know that if you have ABS, any time the diff is locked it defeats the ABS, my question is, if you haven't done the grey wire mod, but hit the button to lock it while in 2wd or 4hi (so the light just flashes and of course won't lock) will this still defeat the ABS while the button is pushed in? Or does it only shut down ABS once the diff physically locks?

    Random question I know, but if that worked that seems like a simple and temporary ABS defeat for someone who hasn't done the grey wire mod.

    Or maybe I've just had to many :cheers:
     

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