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Looking at buying an 04 Taco xtra cab V-6 4x4 Auto. Read something about Active TRAC in the 4x4 models. Just kinda wanted to learn what exactly this is. Can it be disabled, or would you want it disabled when off-road?. Is it standard on all 4x4's???

I dont want anything like the traction control that comes on the Toy, Sequoias.

How can I tell if the truck has it or not?


Thanks All
 

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I have an 04-V6 -4X4 - SR5 - TRD and it didnt come with it.Toyota told me it is an option.The reason I asked them is because I read that it was standard on the V-6 but it is not.
 

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Eddie04 said:
Thanks, couldnt imagine any factory traction junk being good.
Not standard on all 4x4, but an option on non-trd 4x4 only. From what I've read it has sensors at every wheel that will detect slipping conditions and it applies brake presure to that/those wheel(s). The locker would give false reading to the senosrs and that is why they don't put it on TRD equiped. Or something like that. From what I've read it is not very useful for offroading, but good for road handeling especially in adverse weather conditions.
 

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From what I can remember the way the active trac works is that it uses an open diff and the ABS sensors. In the open diff the wheel with the least amount of resistance gets more power which causes the spinning wheel to get more power and spin even more. In active trac, when the ABS sensor sees one wheel spinning faster then the other, it applies the breaks to that wheel, which in the open diff causes more power to go to the other wheel that is spinning slower. It basically tricks the open diff with the breaks to even out the power distrobution, which probly explains why you can't get the active trac with the LSD. The LSD just uses clutches on the inside of the axel instead of using the breaks on the outside of the axel. I am not sure about the E-locker though, I don't see how having both wheels spinning at the same rate all the time would effect the active trac, the ABS sensor just would never see one wheel spinning faster then the other.
 
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