Turning off VSC.....

[Alaskan_IB]

Hey all.....

Wanted to rekindle this one and see if anyone has come up with a solution on how to disable the VSC without loosing the ABS or traction control system. Tough nut to crack but I am sure we can figure this one out.

Robert

 

[bwbski26]

why do you want to?

 

[dgangle]

they are part of the VSC control. If one were able to take them out, what would remain? Like a cake without eggs & flour, or beer without barley and hopps.

 

[Alaskan_IB]

why do you want to?

All I want to accomplish is disabling the VSC electronically. With either a toggle switch or a re-flash of the computer to disable the VSC.

 

[1loudLX]

lets keep the reasons out of this thread so it stays on topic. ONLY discuss HOW to do it.

 

[spikey]

Lock the center differential. Or, if you don't want it locked, you could bypass the system so it looked like the diff was locked, the VSC would be disabled.

 

[Alaskan_IB]

Good thought.....it would work but the only problem with that is if you could somehow get the system to think the center diff was locked it would disable both VSC and Traction control.

 

[2000UZJ]

could you possibly do something similar to the pin 7? By sending a false signal to the ECU? Just a thought...

 

[Trunk Monkey]

lets keep the reasons out of this thread so it stays on topic. ONLY discuss HOW to do it.

And Hell has frozen over.

 

[Topmounter]

Engage the CD... VSC is disabled, while both ABS and A-TRAC still work

 

[1loudLX]

And Hell has frozen over.

i tried to keep the other one on topic too, i'm not mr thread killer ALL the time.

 

[Alaskan_IB]

Engage the CD... VSC is disabled, while both ABS and A-TRAC still work

I tried to run with the CD but it does not help if your on pavement nor does it do the CD any good.

 

[Topmounter]

I'd try contacting this guy or this guy, they both seem to have it figured out

 

[spikey]

Right. I don't know how to do it, but if you could send the signal that the CD was locked without locking it, it would accomplish what you want. Seems do-able.

 

[Alaskan_IB]

Engage the CD... VSC is disabled, while both ABS and A-TRAC still work

Wanted to revive this one because winter is coming again soon....I think that if we modify the CD into thinking its on this would disable the VSC. maybe a switch that allows us to make the computer think the CD is on therefore disabling the VSC.


Robert

 

[wildsmith]

There is a sensor switch on the transfer case, on the front end I think but check an FSM or parts diagram. That's what signals CD is actually locked so that would be the one to tap into IMO to fake it.

 

[Alaskan_IB]

any luck with this at all? Winter is fast approaching.

 

[agaisin]

If I knew how to interpret it, I would check the wiring diagrams for VSC
What about disconnecting the Skid Control ECU, would that disable too much or is skid control essentially VSC?

 

[Yukon LX]

Engage the CD... VSC is disabled, while both ABS and A-TRAC still work

i thought atrac was off once the cdl was on. is this not the case?

 

[1loudLX]

i thought atrac was off once the cdl was on. is this not the case?

atrac still works with CDL engaged. VSC is THE only system disabled.