Turning the Traction Control Off + Traction Control Test on soft sand ! - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 34 (permalink) Old 06-20-2008, 04:32 PM Thread Starter
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Turning the Traction Control Off + Traction Control Test on soft sand !

First part: Turning the Traction Control Off,,,

I donít know if anyone tried to do this before ! ,, but I have done it today

As you know I go on soft sand driving very often, and the Traction Control keeps on engaging many times, even when its not needed and do no good like in hill claiming, which simply absorbs the engine power and prevents wheel slippage needed on all wheels to go through. Also that keeps me worried about the ABS system and break system from the excessive load from the Traction Control.

So I thought about turning off the Traction Control by removing the fuses. And I found two fuses, ABS pump and ABS valves. I tried the ABS pump first and removed it while the engine is off, and after starting the engine, ABS, ESP/BAS and ESP sign were all ON indicating that the ABS system (the basis of Traction Control) is Off. Then I put the fuse back in position and started the engine again, but all lights were still ON, then I put it in D and moved on and once the ABS system made the first check, all lights went off indicating that the ABS system & ESP system were back to operation.

Then I tried the ABS valves fuse (after putting the ABS pump fuse back), but got fault message (Service 4WD system) and the 4low didnít work. Then I put the fuse back in and the fault message were cleared automatically on first ABS check.

So I concluded that the ABS pump fuse is the one should be removed to get the Traction Control OFF.

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post #2 of 34 (permalink) Old 06-20-2008, 04:35 PM Thread Starter
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Second part: Traction Control Test on soft sand

Second part: Traction Control Test on soft sand ,,

So I was so excited to put this under the test to see how the Commander would perform without the Traction Control and how much the Traction Control is effective. And I went on a quick sand dunes trip with my friend who has a well prepared Toyota Fortuner.

First I turned the Traction Control Off and went on a quick test and put the two wheels on one side into very soft sand on a small dune wall ,,,,, see how the commander was digged in !! ,, I have never managed to get it digged in that way.









While in there I put the fuse back, and retired to move, and surprisingly it moved on !! and got itself out of the dune wall, but unfortunately due to low ground clearance I got stuck just couple of meters away from the dune wall (bottomed down) and had to be pulled out.

That was the first test,, 

Second Test describes it self,,,,, enjoy the movie




I was really impressed by that.

My friend has diff lockers in both differentials (one from factory and one ARB air-locker), and in this testing trip we drove about 30 miles in Sand dunes and we concluded that both trucks did almost the same from 4WD system point of view, but the Commander has a very low ground clearance which got it stuck once (other than the test one) and pulled out.





---------------
Addition, this was added in reply # 26 in page 3

Another test,

I managed to go back from that spot with Traction Control ON.


Second Jeep Commander, Current
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2007 XH (International model), Light Graystone Pearl, Sport , 4.7L Quadra-Trac II.





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Last edited by Ahmed; 06-30-2008 at 02:08 AM.
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post #3 of 34 (permalink) Old 06-20-2008, 04:36 PM Thread Starter
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He also test drove my Commander ,,,,, and he managed to get it bottomed down on an easy descent ! ……….Never give your Commander to Toyota guys !!




Picture of the two trucks


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post #4 of 34 (permalink) Old 06-20-2008, 04:46 PM
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So is it your opinion that it was better overall to remove the fuse or to leave it alone?





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post #5 of 34 (permalink) Old 06-20-2008, 04:51 PM
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Quote:
Originally Posted by ahmed255
He also test drove my Commander ,,,,, and he managed to get it bottomed down on an easy descent ! ÖÖÖ.Never give your Commander to Toyota guys !!




Picture of the two trucks

Fantastic....I'm off down to the beach next weekend when I get mine back from the transmission boys!!!

Its good to see clear factual instructions and methods...well done from here in the UK

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post #6 of 34 (permalink) Old 06-20-2008, 04:55 PM
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So, are you saying that 4Hi with ESP all the way off is more effective is soft sand than 4LOW? I wonder what the difference would be with QDII. It didn't look like that front tire was trying at all when you didn't make it up the hill - completely unlocked.

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post #7 of 34 (permalink) Old 06-20-2008, 05:07 PM Thread Starter
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Quote:
Originally Posted by a49erFootballFan
So is it your opinion that it was better overall to remove the fuse or to leave it alone?
the Commander did very well as long as non of the wheels is off the ground, even when some of the wheels go on soft spots, as the truck keeps on moving without the need to engage the traction control to limit the slippage in that little extra spinning due to soft spot.

but all in all, I would keep the Traction Control On to reduce the risk of getting stuck
. especially with this low ground clearance.

But what I would like to do after the warranty ends, is to add a switch to control that fuse manually from inside so that I can turn on the TSC when needed as in the video.

Second Jeep Commander, Current
2007 XH (International model), Green Metallic, Ltd, 5.7L HEMI, Quadra-Drive II
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OME 2" Lift kit


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post #8 of 34 (permalink) Old 06-20-2008, 05:18 PM Thread Starter
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Quote:
Originally Posted by PolarBZ
So, are you saying that 4Hi with ESP all the way off is more effective is soft sand than 4LOW?
Yes, in that particular situation (one wheel off the ground).

Quote:
Originally Posted by PolarBZ
I wonder what the difference would be with QDII. It didn't look like that front tire was trying at all when you didn't make it up the hill - completely unlocked.
I think QDII would do much better without Traction Control as it limits the slippage by itself.

Quote:
Originally Posted by PolarBZ
It didn't look like that front tire was trying at all when you didn't make it up the hill - completely unlocked.
Yea, because the lifted wheel took all the power.

if you notice in 4Hi without Traction Control, the transfer case is trying to shift the power to the front diff. but with no success as it goes back to the rear diff immediately.

in 4low without Traction Control, the transfer case locked the front and rear diffs but I think the right front tire was taking all power going to the front axle.

Second Jeep Commander, Current
2007 XH (International model), Green Metallic, Ltd, 5.7L HEMI, Quadra-Drive II
Spidertax 1.5" wheel spacer, K&N replacement filter
OME 2" Lift kit


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post #9 of 34 (permalink) Old 06-20-2008, 08:37 PM
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Ahmed, thanks for the clarification. I noticed that when I've been on three or two wheels, the ones up in the air get limited, not the ground based ones. Just curious as to what happened there. Thanks.

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post #10 of 34 (permalink) Old 06-20-2008, 09:14 PM
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Ok after reading the thread twice i think i got myself really confused. Are you saying when you pull that fuse that it totally disables the traction control so that you are able to spin the tires without it kicking in and stopping wheel spin.

If this is correct then this would totally fix the problem i had while mudding last night. If you read my thread you can get more info on the problem i was having. Basically i was in some mud and due to all the tires being in the mud and spinning the traction control would just kick in and stop the wheels from spinning so i couldnt move forward or backwards.




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