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RR diff not working!!

Discussion in '1st Gen. Tacomas' started by ryan wulff, Dec 22, 2008.

  1. Dec 22, 2008 at 3:52 PM
    #1
    ryan wulff

    ryan wulff [OP] New Member

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    I have a 2004 tacoma and my rr diff lock is not working. The light on the dash blinks, but will not go solid. I pulled the plug that goes into my diff, and I don't seem to have any power there. Is there a relay switch or something that can go out, or something else that I can try?
     
  2. Dec 22, 2008 at 3:56 PM
    #2
    tacomaman06

    tacomaman06 Carolina Alliance: Lead, follow, or get the hell o Staff Member

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    check the relay and fuses in the fuse box first. can you hear the actuator engage at all?? sometimes, you gotta turn the steering wheel and go either forward or backward before the diff will lock in.
     
  3. Dec 22, 2008 at 5:29 PM
    #3
    ryan wulff

    ryan wulff [OP] New Member

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    I can't hear anything engage at all, and my fuses are ok. I have tryed rocking the truck and turnig the steering wheel, but the light continues to blink?
     
  4. Dec 22, 2008 at 6:16 PM
    #4
    Cobra69

    Cobra69 Well-Known Member

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    2002 Tacoma TRD Access Cab, Deckplate Mod.,Grey wire Mod.,Cobra CB,Ext. Diff. Breather,E-locker rear only for now,CBI Custom Winch bumper, SAW 2.0, All Pro 5" leaf packs+Bilstiens 5150-10" shocks,Cooper STT 285x75x16 on Wheelers Type B 16x8 rims, Budbuilt front+Mid skid plates, Custom transfer crossmember+skidplate,Trail-Gear sliders,custom roof-rack,Ultimate-air CO2 tank,4-Hella 500 H.I.D. Lights,Atlas 10,000 lbs winch. Custom Half-doors for the summer.
    Check your wires see if there is a break or corrosion some where in the line.
     
  5. Dec 22, 2008 at 7:26 PM
    #5
    ETaco23

    ETaco23 Marshall offroad Fabrication

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    Do you have it in 4lo? or did you do the gray wire mod?
     
  6. Dec 23, 2008 at 5:40 AM
    #6
    cole47

    cole47 Well-Known Member

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    lift, wheels, tires
    mine wont go in either i tried to lock it in yesterday and it didnt do anything at all
     
  7. Dec 23, 2008 at 5:42 AM
    #7
    tigerfan00

    tigerfan00 BECAUSE INTERNETS!! Staff Member

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    to engage the locker

    put the truck in 4lo

    hit the rr diff lock buttong

    ease the truck forward about 3-4 feet...you may have to turn the wheel while doing this but not always

    if you have your windows down you should be able to hear the motor and locker engage and then the light should go solid
     
  8. Dec 23, 2008 at 7:10 AM
    #8
    EnolaGaia

    EnolaGaia Well-Known Member

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    There are 2 conditions where the differential lock lamp is supposed to flash:

    (1) The rear diff. lock SW is switched to ON position during differential lock prohibition conditions (Vehicle speed above 8 km/h (5 mph) ).

    (2) The rear diff. lock detection SW is turned off during operation of the rear diff. lock motor.

    Condition (1) might happen if there's a fault in the vehicle speed sensor, the differential lock ECU, or the wiring between them. Condition (2) might happen if there's a fault with the detection switch or maybe even the motor itself.
     
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