4LO-Trac & ABS Kill Switch - Why/Why Not? by Benson X

That being said, I am not responsible for any damage, injury, or harm resulting from anyone attempting these mods. This is for informational purposes ONLY. If you do attempt these mods, you do so AT YOUR OWN RISK!

-ABS KILL SWITCH-

STEP 1: Unplug the Battery. Remove the trim on the Driver's Side to access the wiring harnesses behind the kick panel.

STEP 2: Unplug the white modular plug (IB1). It's the 2nd one down right next to the Parking Brake in the BLUE housing. 

(from CROM's thread):

STEP 3: Cut the LIGHT GREEN wire (as pictured). I chose to crimp on some quick-connect terminals so I could easily re-connect the wiring if needed, and wrapped it up with heat-shrink tubing. 

STEP 4: Find a good SPST On/Off Switch to use, and choose a good location to install it. I grabbed this simple one from RadioShack.

I installed it right above my TPMS reset button. I prefer to have all my mods clean and discreet. 3/8" drill bit should do the job nicely.

STEP 5: Measure (2) lengths of wire from the Green Wire you cut to your switch. I chose to run my wires along the existing wiring harnesses and tucked them into the plastic conduit for the TPMS wires. 

Again, I wrapped all the connections in heat-shrink tubing and electrical tape. I crimped on a couple quick-connect terminals on the ends to plug into my switch.

STEP 6: Connect your wire-leads to your switch and re-connect your battery. Give everything a once over and clean up the wiring as needed. 

Test it out!

When you press the switch, your ABS light will come on, and the VSC-Off light will also come on.

-Yellow Wire Mod-

Again, this was on my 2011 V6 TRD Sport w/ VSC & TRAC Auto-Trans (no locker,no ATRAC, no TRD Off-Road pckg.)

This method should be compatible with similar models w/ TRAC equipped, provided the wiring harnesses are the same. 

That being said, I am not responsible for any damage, injury, or harm resulting from anyone attempting these mods. This is for informational purposes ONLY. If you do attempt these mods, you do so AT YOUR OWN RISK!

STEP 1: Disconnect the Battery. Remove your glovebox.

STEP 2: Unplug the TOP white plug on the right side.

STEP 3: Either remove or clip the 2nd YELLOW w/ BLACK striped wire. I just removed the terminal from the plug itself and taped it up - that way it can easily be plugged in if needed.

STEP 4: Plug it back in and test it. When working, traction control (TRAC) will be enabled in 4LO.

*NOTE*: After doing this mod, the 4LO indicator light will FLASH when 4 LO is engaged. THIS IS NORMAL AND EXPECTED. The 4LO beeping will still occur if 4LO does not engage properly.

Additionally, you can wire up a simple SPST On/Off switch (like the one used above in the ABS Kill Switch mod) to stop the flashing light, though it is not necessary. To read more about the Yellow Wire Mod and/or using a switch for it, please see the original thread located HERE.

Here are some good videos showing it in action:

I guess I will be the guinea pig to test this out tomorrow. 

Here's my plan:

• Do the YWM Mod by unplugging the #2 Yellow/Black Wire terminal from the plug (that way it can easily be plugged back in if there are any issues).

• Do MiloWilli's ABS KILL Mod (for the non-OR, VSC) by running the LIGHT GREEN wire to a simple SPST Push On-Push Off switch. That too can easily be removed if there are any issues....

Check to see if it works, and in what combinations/drive modes.