Traction control disable...98 Mark VIII - TCCoA Forums
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post #1 of 26 (permalink) Old 05-21-2012, 07:35 AM Thread Starter
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Traction control disable...98 Mark VIII

I am doing the Jmod to a customers mark soon. I have mentioned the possibility of it setting off the traction control. I am curious if there is any easy way to electrically trick the info center that the tc has been turned off? Thanks in advance!

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post #2 of 26 (permalink) Old 05-21-2012, 08:09 AM
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It just becomes second nature to turn it off as soon as you start the car. Hit "Vehicle settings" once, then the reset button. It needs to be disabled every time you start the car, so unless you were going to create a module that would send the right signals to the ABS module every time the car gets started, I don't see any easy way to disable the traction control permanently without also taking out the ABS with it.

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post #3 of 26 (permalink) Old 05-21-2012, 10:29 AM
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No way that I know of to disable the TC in the tune, or by any simple wiring fix.

The J-Mod won't set it off either.

Just as Mike states, you get used to hitting the reset button.

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post #4 of 26 (permalink) Old 05-21-2012, 04:35 PM
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Is it the same/similar to the T-Bird's TC? The above posts make me think my mod wouldn't work but passing it on anyways.

You can solder some wire to bridge the connection(Right term??) at the switch:


I'm not very good at soldering so it didn't work too well for me so I went to the harness and connected the two wires(gray and purple w/ pink stripe) for the TC:


Don't know if the circuit board or wire colors are the same so do it by trial and error until the TC off light stays on. Then pull the bulb out.
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post #5 of 26 (permalink) Old 05-21-2012, 04:39 PM
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Originally Posted by skinnytick View Post
Is it the same/similar to the T-Bird's TC?
No, it's controlled through the Message Center buttons on a Mark VIII.

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post #6 of 26 (permalink) Old 05-21-2012, 06:45 PM
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My ABS sensors arent plugged in .. disables the ABS and traction control also.
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post #7 of 26 (permalink) Old 05-21-2012, 09:11 PM
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DLF, what about jumping the circuit on the message center like you mentioned on LVC. I'm not saying I have big enough [email protected] to try it, but maybe we can convince somebody to...

and while we're on the topic of this can anybody tell me if unplugging the abs pump motor, will kill the speedometer and odometer. or if it will just light up the dash like a Christmas tree.

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post #8 of 26 (permalink) Old 05-21-2012, 10:02 PM
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If you want to disable ABS, why not just yank the fuse?

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post #9 of 26 (permalink) Old 05-22-2012, 12:21 AM Thread Starter
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Quote:
Originally Posted by druggles85 View Post
DLF, what about jumping the circuit on the message center like you mentioned on LVC. I'm not saying I have big enough [email protected] to try it, but maybe we can convince somebody to...

and while we're on the topic of this can anybody tell me if unplugging the abs pump motor, will kill the speedometer and odometer. or if it will just light up the dash like a Christmas tree.
It will make the odometer go blank for sure. My 97 LSC had no odometer when I bought it, turned out it had lots of corrosion in the ABS module connection. A new module without rotted pins, 2 new connector pins and some careful cleaning and it was all working again. Come to think of it, my ABS and trac light were always on and I could do one tire burnouts

sctbird1994, good idea on inducing a ABS code to disable the system Are there any side effects to this besides no ABS and the warning lights being on?

EDIT: got an email from Don Lasota earlier about the tune. He was able to turn off a parameter or something in the mark computer for traction control, but he cant be sure that it will take care of it since it's a Lincoln. We are going to keep our fingers crossed though! It sucks having to hit those buttons just to turn it off everytime you hop in the car!

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Last edited by Rob; 05-22-2012 at 12:27 AM.
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post #10 of 26 (permalink) Old 05-22-2012, 12:33 AM
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sctbird1994, good idea on inducing a ABS code to disable the system Are there any side effects to this besides no ABS and the warning lights being on?
Just the ABS light on, and the Traction control is always Off, this is on a 1994 SC though but the traction control relies on the ABS.

My only reason is because I put these 17x9" Cobra replica wheels on that rubbed on the spindles, so I put some early style spindles on for clearance and they didnt come with ABS sensors .. eventually I plan on fixing the problem by installing sensors.
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post #11 of 26 (permalink) Old 05-22-2012, 10:25 AM
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EDIT: got an email from Don Lasota earlier about the tune. He was able to turn off a parameter or something in the mark computer for traction control, but he cant be sure that it will take care of it since it's a Lincoln. We are going to keep our fingers crossed though! It sucks having to hit those buttons just to turn it off everytime you hop in the car!
While there is a parameter in the SCT db for the TC, I've tried it, and it hasn't had any effect on the Mark VIII's that I've tuned. Maybe you'll have better luck.

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post #12 of 26 (permalink) Old 05-22-2012, 12:25 PM Thread Starter
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I presume we will have the same luck, lol. Luckily the guy understands its something hes going to have to turn off as needed.

-Rob
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post #13 of 26 (permalink) Old 05-23-2012, 08:58 PM
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If one of the front abs sensors "fails" is there any wire that can be snipped to disable the traction control message, from displaying on the message center? Sorry I don't have an evtm yet, so I've gotta ask stupid questions.

Also, sort of related, if I have the abs system "repaired" when it comes time for safety/emissions will there be a code for the abs warning lamp being "burnt out"
Thanks.

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post #14 of 26 (permalink) Old 05-24-2012, 12:57 AM
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I had Don due some tunes for my 98 LSC and my main want was traction control off we couldnt get it.The tunes rock but Don couldnt get the traction control off.I ordered from DALLAS Mustang a traction control controller they sell for the mustang.I basically set the car to the last settings before the key was turned off.I am wiring it in tomorrow.They believe its going to work.I have to call them tomorrow and there tech is going to go through the wiring.The module is $15 on EBAY.They have it listed still
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post #15 of 26 (permalink) Old 05-24-2012, 08:39 AM
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Originally Posted by druggles85 View Post
If one of the front abs sensors "fails" is there any wire that can be snipped to disable the traction control message, from displaying on the message center? Sorry I don't have an evtm yet, so I've gotta ask stupid questions.

Also, sort of related, if I have the abs system "repaired" when it comes time for safety/emissions will there be a code for the abs warning lamp being "burnt out"
Thanks.
Why not remove the lamp from behind the "Traction Control" message? That would keep it from displaying.

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post #16 of 26 (permalink) Old 05-24-2012, 08:50 AM
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It isn't a lamp. It is an LED display message center that is also used for other things like the clock, compass, fuel mileage monitor, trip odometer, driver settings, etc.

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post #17 of 26 (permalink) Old 05-24-2012, 04:08 PM
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Right, kinda planning on pulling the "abs" bulb and the "traction off" bulb, but I still need to hit reset to clear the "check traction control" message every time I get in the car.

08fxdb96 please let us know how you make out with that. Sounds like something I might want.

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post #18 of 26 (permalink) Old 05-24-2012, 06:18 PM
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Why not just fix the problem?

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post #19 of 26 (permalink) Old 05-24-2012, 06:22 PM
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No problem!Fat tires in rear set off traction control the slight hieght difference makes the computer think your spinning out.
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post #20 of 26 (permalink) Old 05-24-2012, 06:45 PM
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Why not just fix the problem?
Well I guess I could do that.

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post #21 of 26 (permalink) Old 05-25-2012, 11:11 AM Thread Starter
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08fxdb96....dude you have to send me a link to this. What does the module exactly do? Mimick button pushes? This might make the most sense to use. The tune was unable to turn off t/c since its controlled by the ABS module mostly.

After doing this jmod, the traction light would turn on at the shift, but there is no timing being retarded that I could best tell. Maybe turning off the t/c in the computer makes it stop retarding timing when TC is set off. I think the gen II uses both the engine and rear brakes to make this happen. Is that right? Wait...I noticed that before we flashed the pcm.

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post #22 of 26 (permalink) Old 10-07-2016, 10:46 AM
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I have been thinking hard about a way to permanently disable the traction control for my FX2 dune car monstrosity 1997 Mark VIII. In the discussion above, they are talking about the traction control in relation to the ABS, but I am pretty certain that the fuel also gets cut with the traction control kicks in. If the fuel does indeed gets cut back during a "traction event", and there is not a good solution for turning it off with a tune, would my only good option be to swap out the engine harness and PCM for one out of a Bird (that only had traction control via the brakes) and remove/disable my ABS pump?

Or what if I spliced the wheel speed sensors and had them all looking at only one tire?

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post #23 of 26 (permalink) Old 10-07-2016, 11:16 AM
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I have been thinking hard about a way to permanently disable the traction control for my FX2 dune car monstrosity 1997 Mark VIII. In the discussion above, they are talking about the traction control in relation to the ABS, but I am pretty certain that the fuel also gets cut with the traction control kicks in. If the fuel does indeed gets cut back during a "traction event", and there is not a good solution for turning it off with a tune, would my only good option be to swap out the engine harness and PCM for one out of a Bird (that only had traction control via the brakes) and remove/disable my ABS pump?

Or what if I spliced the wheel speed sensors and had them all looking at only one tire?
Splicing the wheel speed sensors to just one or two wheels (the front presumably) is a bad idea. The way ABS works, as I'm sure you know, is it measures wheel speed. If it can't balance it out across all four wheels, it cannot react appropriately. A great example of this happens to me EVERY winter when we get enough snow or a sheet of ice on the hill here in Duluth. ABS becomes useless because if you're smart you're already crawling down the hill in low gear, and as you feather the brake, the ABS kicks in, but on ice or the right consistency snow, all four wheels can be locked and you're still moving down the hill, rendering the ABS useless. So you have to resort to feathering the brake to try and get enough traction to slow your slide and hope you can stop before the bottom of the hill.

I wouldn't recommend doing the splicing is what I'm saying. Swapping out the harness won't do you any good either, because I believe Traction Control was included in all ABS equipped MN-12/FN-10 vehicles. They run off the same system, just a minor variation in activation, where the ABS is triggered using the brake pedal, while the TC is triggered by wheelspin on acceleration, and it will brake the appropriate wheel.

If I were you, I'd take the simplest path and simply unplug the wheel sensors, disabling both the ABS and the Traction control and just feather the brake like you would in a non ABS equipped car.

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post #24 of 26 (permalink) Old 10-07-2016, 11:38 AM
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But I am fairly confident that the fuel gets pulled back when the tires spin. I drove that car for about 100 k miles with the ABS light on. A shop told me that is was a bad ABS pump and I decided to just drive it as is. Every time that I started the car and drove is about 50 feet, the ABS light would turn on. The wheels would lock up on a hard stop, showing me that the ABS was indeed not working. BUT AT THE SAME TIME, if I spun the tires, the traction control would still kick in, really killing power for about 3 seconds (especially annoying/ dangerous when pulling off a dirt driveway into the flow of fast traffic). And if I didn't turn off the TC before the ABS light was tripped, I was locked out of it and had to restart the car and turn off TC before the ABS tripped again.

That is what I'm trying to get around- the fuel getting pulled and loosing almost all power every time that the tires spin. Mark VIII's have an information center that you can navigate to turn off the TC, but I would like to evolve what I have to eliminate the info center and the TC all together. As of right now, every time I start the car, I have to wait about 4 seconds and then toggle through the settings in order to turn off TC. I know that doesn't sound like much, but I am trying to make things as simple as possible and give the ability for other drivers to be able to get into the car and just go.

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post #25 of 26 (permalink) Old 10-07-2016, 11:44 AM
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I agree with Woodman's suggestion - no sensors = no way for traction control to know to pull timing. Swapping harnesses from a Tbird or whatever is the opposite of simplification, and take this from someone who has needlessly adapted several wiring harnesses
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post #26 of 26 (permalink) Old 10-07-2016, 12:00 PM
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If unplugging my wheel speed sensors will do the trick, then that is about as simple as it gets. Thanks guys.
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1995 T-Bird.
PI 4.6. Bullitt intake. Stage 2 MHS cams. Kooks Headers. 4,200 ATF Speed converter. BCA Transmission. 4:10s. Tune by Supercoupes Unlimited. 245 RWHP.
3,700 lbs at half tank. Goal- 3,400 lbs
Best of 13.85 at 96 mph. Goal- 11's NA

1997 Lincoln Mark VIII LSC- stock

1997 Lincoln Mark VIII FX2 Sand Dune Machine- R.I.P.
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