VSC Off Switch - Without Modifications?

[Bumbo]

2004 V6 4x4

I've been reading up on the VSC off switch mods and really want to do it...

I've seen simple switch to just open the ground on a wire on the master cylinder all the way to the fancy "New fine-grained VSC OFF Mod for V6 1GR" linked below.

http://www.toyota-4runner.org/engines-suspension-wheels-tires-audio-accessories/88882-new-fine-grained-vsc-off-mod-v6-1gr.html

I started thinking back to the times were I had a check engine light and accidentally cleared my Zero Point Calibration when plugging in an OBD scanner because the 2004 uses the ISO protocol instead of CAN. This happens when the scanner is trying to negotiate the protocol with the car...

Because of that I ended up making myself a tool to do the zero point calibration which ended up looking like this.

I started thinking to myself... since this is primarily my off-road truck, why not just manually dump my zero point calibration and just leave it be?

If I really want it back, I can throw it in the garage on a level surface and just re-calibrate.

Would this not be a valid way to have a VSC off condition without any modification to the truck? I haven't tested it yet, but seems like it would work.

I kinda pride myself on not chopping up the trucks electrical, even though I am pretty good with electrical.

What do you guys think?

 

[BackOff]

That should work and you still have ABS. I did that after I left the scanguage in and it did the same thing your talking about. My tool is a 6inch double wire tied in a knot.

 

[Bumbo]

Awesome... ill probably dump calibration later this weekend and test it out.

I made the tool originally for the trail or when on a road trip... a lot less fuss or possibility to short something out with everything setup like that. This way I just dont have to remember anything regarding pin-out. Plus it didn't cost me anything.

That said the first time I did I just used some multi meter leads lol.

I also have a Scanguage II... but after you connect it, just set it up to force ISO so that doesn't happen again.

Anyone else see a problem with this workaround?

 

[BackOff]

I marked the DLC3 with a sharpie on the correct pinouts, after about the 3rd reset.

Guess I should have said 'left it plugged in after battery disconnect'.
If you disconnect the battery with the ScanGuage2 plugged in, when you reconnect the battery, disconnect the SC2 first or it will set off the VSC.

I ran the VSC/ABS off mode for 3 months over the winter, the only real drawback is that you have a tendency to spin the tires more, that can lead to you chucking, in my case cinders, and pissing off those behind you.

None the less its is FUN with the nanny turned off. Maybe better for off-road use, but hey that's just one guys opinion.

I like to be able to turn it on and off with a switch, that way too if others drive it or you have someone work on it, it wont have dash lights to confuse anyone.

/cheers

 

[jrm]

I was wondering..

if you had access to the full toyota diagnostic software you could probably go into the 4x4 ECU and toggle VSC off permanently. Since this is a option on the 08' i think the options in there...unless the 4x4 ECU is completely different..

oh well who knows..:beer:

 

[Bumbo]

if you had access to the full toyota diagnostic software you could probably go into the 4x4 ECU and toggle VSC off permanently. Since this is a option on the 08' i think the options in there...unless the 4x4 ECU is completely different..

oh well who knows..:beer:

No idea... I always hear Toyota ECUs are pretty locked down.

I have seen various off-line versions of Techstream floating around here and there but I haven't gone though the trouble of actually trying to acquire it.

That said, for the amount of effort required for dumping zero point, this is probably going to be the solution I use.

 

[Bumbo]

I marked the DLC3 with a sharpie on the correct pinouts, after about the 3rd reset.

Guess I should have said 'left it plugged in after battery disconnect'.
If you disconnect the battery with the ScanGuage2 plugged in, when you reconnect the battery, disconnect the SC2 first or it will set off the VSC.

I ran the VSC/ABS off mode for 3 months over the winter, the only real drawback is that you have a tendency to spin the tires more, that can lead to you chucking, in my case cinders, and pissing off those behind you.

None the less its is FUN with the nanny turned off. Maybe better for off-road use, but hey that's just one guys opinion.

I like to be able to turn it on and off with a switch, that way too if others drive it or you have someone work on it, it wont have dash lights to confuse anyone.

/cheers

Good tip on the Scanguage... I think that happened to me as well at one point in time.

As far as the lights are concerned, no one else but me works on the truck, or drives it. If I did have to take it into the dealer I can just re-calibrate zero point in my garage and take it in...

Having some tech friends who do electrical at dealers, and some of the stories I hear... their favorites are modified electrical and during a trouble shooting process where there could be a conflict generally makes it a very expensive venture for the customer. "Often times they like to stick it to em"...

I have plenty of electrical modifications on my trucks, but I create my own systems and try very hard to leave every factory harness alone. I also feel it plays well into the reliability motto of a off-road / overland truck.