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  #1 (permalink)  
Old 03-24-2008, 10:53 PM
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Active Traction plus Diferential Lock

Please, I want to know, if the "Active Traction" operates on both, front and rear axels. If it does, I want to know if I can use "Active Traction" in addition to the "Diferential Lock".
Thanks and regards.
Manolo
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Old 03-25-2008, 09:01 AM
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Quote:
Originally Posted by Manolo View Post
Please, I want to know, if the "Active Traction" operates on both, front and rear axels. If it does, I want to know if I can use "Active Traction" in addition to the "Diferential Lock".
Thanks and regards.
Manolo
Ya know, I could be wrong here, but I don't believe active traction is functional while 4WD is engaged. This function only works when driving with rear wheels, and that is to pervent fishtail.
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Old 03-28-2008, 08:49 PM
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TBall, I appreciate your interest to help me, but...
Now, I am sure there is a confusion, as far as I know, "active traction", only works when the F.J. is 4L, that implies that the F.J. is in engaged in 4WD, and goes at a very slow speed.
There is no way, to drive the F.J. only with rear wheels.
My doubt remains unsolved.
Thanks any way.
Manolo
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Old 03-29-2008, 07:04 AM
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Ok, well, I don't know about yours, but I can drive with rear wheels only, and when I do, I can use traction control. Don't know what to tell ya.
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Old 03-31-2008, 01:39 PM
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Manolo,

I have that same question and more. I just bought the Active Traction Control button and installed it this weekend. After having read the manual (by the way Toyota owners manuals are the worst on the market today) it says that you engage the Active Traction Control in LL. This is what I did and the little green dashboard light came on telling me it's working. However, when you leave LL and go to 2 wheel or four high the light goes off. The manual says that you should leave it on, and the Active Traction Control will come on when its needed. Soooo, will the Active Traction Light come back on when the system automatically engages or what?
Squido, FJ Guru and Grand Pooh-Baah, we seek your wisdom ...
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Old 03-31-2008, 10:06 PM
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TommyBoy:
Please, go to toyotafjcruiserforums.com, there, go to: 4x4 / Off-Road Tech, then go to: "Making sense of TRAC, Auto LSD, ATRAC, VSC, & Rear Diff lock", this does not solve all our doubts but helps.
Regards.
Manolo
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Old 04-01-2008, 11:45 AM
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Thanx Manolo, That answers all my questions. A-Trac only works in 4 low. Which is good, but I don't use 4 low very much. That's for you left-coast rock climbers, not us midwest mudders :-)

Good post.
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Old 06-23-2008, 08:29 AM
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General
When the transfer shift lever is L4 or LL position and A-TRAC switch is turned on, the A-TRAC helps
restrain wheelspin by controlling the brake fluid pressure that is applied to the spinning wheels, and
distributes the drive force that would have been lost through the slippage to the remaining wheels in order
to achieve an effect that is similar to LSD.
It independently controls the brake hydraulic pressure to the four wheels in accordance with the extent
of the slippage at the wheels, as detected by the Skid Control ECU.

Effectiveness of A-TRAC
The effectiveness of A-TRAC is as follows:
Off-road drivability that is equivalent to having the center differential locked and limited slip
differentials on both front and rear has been realized.
This function makes the operation of the differential lock switches basically unnecessary to ensure the
ease of driving.
A-TRAC allows for drivability benefits similar to those of locked differentials, while still allowing for
the vehicle to be steered at low speeds, without the binding that would normally be associated with locked differentials.

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Old 03-19-2009, 09:02 PM
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I'm still confused about one thing, do i just have to buy the button and plug it in or is it more complicated than that, and where does the button mount?
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Old 03-10-2010, 09:38 PM
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I am new to the FJs but from what I am aware, all you need is the switch. The button mounts in the second space from the left in top row of spots in the center console.
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