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ABS Module/Harness Wire Diagram

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Captainskidmark, Sep 18, 2023.

  1. Sep 18, 2023 at 4:09 PM
    #1
    Captainskidmark

    Captainskidmark [OP] Well-Known Member

    Joined:
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    Northern Illinois
    Vehicle:
    2015 4X4 TRD SPORT DCLB ~ Black
    ECGS 4.56 gears with Detroit True Trac in the rear. Camburg Ball Joint UCAs Dirt King LCA Dobinson IMS rear shocks Dobinson IMS w/ 352 coils DAKAR EL096 HD LEAFS AR172 17"x8" BAJA RIMS (5 wheel/tire rotation) GX470 Front Brake Upgrade SS extended brake lines Front and Rear (Toytec) 285/70/17 BFG A/T Toyota Roof Rack over Cab A.R.E. Z series CAP with Rhino Rack rooftop rails , -RED/WHITE LED BED LIGHTING -12V AUX POWER AND USB MAGNAFLOW CAT BACK RAAMmat Sound Abatement Pioneer AVH-2440NEX w/ Android Auto + Morel Speakers 120 VAC Block Heater Pelfreybilt Front/Mid Skids ATH Bed Braces ATH FRONT BUMPER - FULL LOOP BAJA DESIGNS FOGS HERETIC 20" LIGHT BAR ATH REAR BUMPER - STANDARD RIGID FLUSH MOUNT REVERSE LIGHTS Weathertech floor mats Rear Diff Breather Mod Wheeler's Super Bumps + Ubolt Flip Kit ABS Kill Switch Mod Northstar AGM Battery Pedal Commander Desert Does It Seat Spacers
    Hey there, wondering if anyone can point me in the direction of the schematic for the abs module wiring harness for 2015 Tacoma 4.0 4x4 TRD Sport DCLB.

    Over a period of time I have had intermittent ABS/Traction control lights coming on the dash. Sometimes they would disappear for months on end and eventually come back. I had a buddy with a high end scanner pull the codes which were C1407 and C1408, which are codes for both left and right rear wheel speed sensors. Presently the lights have been coming on/off more frequently, so I figure I should get to the bottom of it. Before just running out and buying wheel speed sensors, I'd like to perform a continuity test to make sure it isn't the harness.... or even worse the abs module (900$). I found a schematic for the harness and wheel speed sensors on this site, but the harness on my truck looks different than the one posted...for reference, here is the harness that plugs into the abs module located under the hood on passenger side of truck. Thanks in advance.
    20230918_173648.jpg

    For reference, this is the schematic I found, but as you can see by the 1st picture, my harness is different.
    20230918_181141.jpg
     
    Last edited: Sep 18, 2023
  2. Sep 18, 2023 at 4:22 PM
    #2
    TireFire

    TireFire Superunknown Member

    Joined:
    Feb 6, 2016
    Member:
    #177349
    Messages:
    7,269
    Olympic Peninsula
    Most likely the sub harness for an intermittent issue. It moves a bit every time you move the wheel or the suspension cycles. Continuity test may give misleading results because of that.
     
    Dm93 likes this.
  3. Sep 18, 2023 at 4:29 PM
    #3
    Captainskidmark

    Captainskidmark [OP] Well-Known Member

    Joined:
    Nov 29, 2014
    Member:
    #143284
    Messages:
    501
    Gender:
    Male
    Northern Illinois
    Vehicle:
    2015 4X4 TRD SPORT DCLB ~ Black
    ECGS 4.56 gears with Detroit True Trac in the rear. Camburg Ball Joint UCAs Dirt King LCA Dobinson IMS rear shocks Dobinson IMS w/ 352 coils DAKAR EL096 HD LEAFS AR172 17"x8" BAJA RIMS (5 wheel/tire rotation) GX470 Front Brake Upgrade SS extended brake lines Front and Rear (Toytec) 285/70/17 BFG A/T Toyota Roof Rack over Cab A.R.E. Z series CAP with Rhino Rack rooftop rails , -RED/WHITE LED BED LIGHTING -12V AUX POWER AND USB MAGNAFLOW CAT BACK RAAMmat Sound Abatement Pioneer AVH-2440NEX w/ Android Auto + Morel Speakers 120 VAC Block Heater Pelfreybilt Front/Mid Skids ATH Bed Braces ATH FRONT BUMPER - FULL LOOP BAJA DESIGNS FOGS HERETIC 20" LIGHT BAR ATH REAR BUMPER - STANDARD RIGID FLUSH MOUNT REVERSE LIGHTS Weathertech floor mats Rear Diff Breather Mod Wheeler's Super Bumps + Ubolt Flip Kit ABS Kill Switch Mod Northstar AGM Battery Pedal Commander Desert Does It Seat Spacers
    I agree which is part of the reason I have put off resolving the issue for so long. I am hoping since it comes on and stays on more frequently that I could catch it. Would like to build a little confidence in isolating the issue before throwing money at it.
    Appreciate the reply.
     
  4. Sep 18, 2023 at 7:49 PM
    #4
    haydendoesmith

    haydendoesmith Well-Known Member

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    15 DCSB TRD Sport 4X4 Auto
    I got this from this site. Unable to locate the source. Credits to the original uploader.
     

    Attached Files:

  5. Sep 18, 2023 at 7:50 PM
    #5
    Dm93

    Dm93 Test Don't Guess

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    Predator tube steps, Ranch Hand grill guard, Magnaflow CatBack exhaust, Toyota tool box & bed mat, 2LO Module by @Up2NoGood, Rearview Compass/Temp Mirror, Tune by @JustDSM.
    I agree with this, alot of people have them break/corrode at the S22 connector where the 4 speed sensor wires meet up with the body harness.

    Pinout and wiring diagram attached below.
     

    Attached Files:

  6. Sep 19, 2023 at 4:40 AM
    #6
    Captainskidmark

    Captainskidmark [OP] Well-Known Member

    Joined:
    Nov 29, 2014
    Member:
    #143284
    Messages:
    501
    Gender:
    Male
    Northern Illinois
    Vehicle:
    2015 4X4 TRD SPORT DCLB ~ Black
    ECGS 4.56 gears with Detroit True Trac in the rear. Camburg Ball Joint UCAs Dirt King LCA Dobinson IMS rear shocks Dobinson IMS w/ 352 coils DAKAR EL096 HD LEAFS AR172 17"x8" BAJA RIMS (5 wheel/tire rotation) GX470 Front Brake Upgrade SS extended brake lines Front and Rear (Toytec) 285/70/17 BFG A/T Toyota Roof Rack over Cab A.R.E. Z series CAP with Rhino Rack rooftop rails , -RED/WHITE LED BED LIGHTING -12V AUX POWER AND USB MAGNAFLOW CAT BACK RAAMmat Sound Abatement Pioneer AVH-2440NEX w/ Android Auto + Morel Speakers 120 VAC Block Heater Pelfreybilt Front/Mid Skids ATH Bed Braces ATH FRONT BUMPER - FULL LOOP BAJA DESIGNS FOGS HERETIC 20" LIGHT BAR ATH REAR BUMPER - STANDARD RIGID FLUSH MOUNT REVERSE LIGHTS Weathertech floor mats Rear Diff Breather Mod Wheeler's Super Bumps + Ubolt Flip Kit ABS Kill Switch Mod Northstar AGM Battery Pedal Commander Desert Does It Seat Spacers
    Thank you, this appears to be exactly what I was looking for....appreciate it big time.
    Hope to follow up soon with a resolution.
     

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