ABS light coming on after update

[camarofool]

I have a 2007 silverado new body style just updated to new version and now if I drive about 4 miles my ABS and Brake light pop on and stay on.If vehicle is restarted it goes away but comes back within minutes any other complaints about this with new update crom 9r05a for the u7194 programmer????


Chris

[CANUCKPREDATOR]

did you adjust tire size?

[06MonteSS]

hahaha... another tire size victim....

this is happening to everybody with this predator...

I've been workin with this guy for weeks, and we still can't get it to work, no matter what we do... http://diablosport.com/index.php?name=P ... ic&t=12512

any thoughts mike??

[camarofool]

its doing it due to tire size not being manually changed???

[camarofool]

has switching the tire size manually worked for anyone???

[NIGHTSTALKER]

I have an 08 and tried to switch the size and then my abs and e-brake light came on. I put the stock size back in 265/70/17 and all is good. I only went up to 285/70/17, so not that big a difference in mph.

[Dschev1]

I've been working with MOnteSS on my lighting issue so take a look at what we did to finally clear it up
http://www.diablosport.com/index.php?na ... 3294#73294

[Dschev1]

NightStalker
Quick Question_ Did going up on the width of your tire size resolve your light problem? I didn't try that with mine.I only adjusted the height, But I did finally get my lights to stay off. Just curious-- I've noticed a difference in the tune i'm running now compared to the one I was running before.
Seems like this Pred. programmer does some weird stuff with the tire sizes...

[dontech]

I had this same issue today..I updated my u7194 to the latest rev and now my abs light comes on...I have the stock tires and have never had this problem with the prevous verson that I was using on my 2007 nbs. I tried to upgrade for the wot shift revision that was stated on the update page. I went back to the rev 8 and no problems. Any ideas?

[06MonteSS]

interesting...

good find/observation dontech!!

maybe they'll get to the bottom of the issue now...

[dontech]

I am running 8r.09 and not having any problems...what has changed between then and now that would mess with tire size.

I am really looking for the shift changes at wot that was posted as the discription in the revision. What changes did they do for that, and what affects is it suppose to have. I hate the way my truck shifts now but since I have no idea how to change it with out taking a chance on screwing something up I have left it alone....I really thought that it was tqm. If there was a simple fix such as a up-date, I would do that.

[08Silverado]

So does this mean if I get the latest revision on my 7194 that I will have this problem,or just for people that try to change tire size.

[dontech]

I have the stock tire size.

But I also have a 5.3 so I don't know if it is because of the DOD or not.

I would not update until they fix the latest tune. Unless you have a older version that works on your truck. That you can go back to.

[Dschev1]

08 Silver,
I've got the 4.8 in an 07 silver and My tire size is 245/70/17 (stock).
I'm running STOCK tires with the 9r05 crom and a custom diablolew tune.
I have to have my tire setting at 245/66/17 to keep my lights from kicking on. I agree with dontech. if it aint broke I wouldn't change it until they get it fixed.
Setting the tire size at a lower size(***/66/**) you will notice a significant change in torque. When I run my original tire size torq is great- but then the damn lights kick on. Lew and I spend severasl hours and days trying to work around this and this tire setting was the best without the lights..

[08Silverado]

So hows the torq now, mine is stil the 9r03,wanted to update it to the 9r06 for the better shifts and mileage, is there a very big difference