Stuck CAPS
New member
I just finished my VSC on/off mod, but I was just wondering if anyone has figured out how to use the standard Trac off button (or an OEM styled switch) as their VSC switch?
VSC On/Off
- Thread starter Stuck CAPS
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zopperman
Moderator
A few people have done this, I'm soon to be one of them. I keep forgetting to take the oem vsc off switch from my dad's truck every time I see him. The switch is momentary and you have to convert it to a standard on/off using some staples. I know [MENTION=46025]HokieRunner[/MENTION] just did this.
ETA here's the link http://www.fjcruiserforums.com/foru.../156354-how-convert-oem-momentary-switch.html
ETA here's the link http://www.fjcruiserforums.com/foru.../156354-how-convert-oem-momentary-switch.html
Stuck CAPS
New member
So then I just solder the leads from the clipped vsc wires to the leads of the switch?
gfluff
Member
I converted a factory vsc switch to work like normal. I used safety pins.
Wired the switch into the dash already, it looks factory and pretty like it should. Haven't actually got into the 4xECU though, been lazy... I don't want to remove the whole dash again to run the wire. Pure straight laziness...
Check my build thread for a pic of the switch(es)...
Wired the switch into the dash already, it looks factory and pretty like it should. Haven't actually got into the 4xECU though, been lazy... I don't want to remove the whole dash again to run the wire. Pure straight laziness...
Check my build thread for a pic of the switch(es)...
Stuck CAPS
New member
Will I require a relay or a circuit of some sort? I saw someone on fjcforums used a D flipflop and relay for his.
zopperman
Moderator
If you want to make it so that pushing the switch deactivates VSC, you will use a relay. Otherwise, you can just splice in the wires and leave the switch pushed in to have VSC on like [MENTION=97032]hearno[/MENTION] did.
Snesley Wipes
New member
I did this and I used "VSC Off" button. I modified it by buying a "junk" factory switch (forgot which one), removed the pin that holds it down when pressed, and put it in the VSC button so it stays down when pressed. Easy peasy!
txclimber
New member
I've read many posts about the vsc cancel mod, and I'm still in the dark. Seems there are several folks reading this thread that have done the mod. Please help me to understand why you are doing this.
I understand the need to spin the tires sometimes, e.g when you need to clear mud from tread, or when you need to get 'em spinning to make it up a slick slope, etc.
Can't all of these things be accomplished by just locking the center diff, which turns the VSC off? What am I missing here?
I've been wanting to do this mod, but I haven't convinced myself of it's utility. Seems kind of pointless, if locking the center diff does it anyway.
Why would you want the VSC off and the center diff unlocked?
I understand the need to spin the tires sometimes, e.g when you need to clear mud from tread, or when you need to get 'em spinning to make it up a slick slope, etc.
Can't all of these things be accomplished by just locking the center diff, which turns the VSC off? What am I missing here?
I've been wanting to do this mod, but I haven't convinced myself of it's utility. Seems kind of pointless, if locking the center diff does it anyway.
Why would you want the VSC off and the center diff unlocked?
Stuck CAPS
New member
1 - So I take a vsc switch, and without a relay, pushing it will make it turn ON, and with one, pushing it will turn it OFF?
2 - What relay would I use for it?
3 - Would I need a specific spot in the under the hood fuse box for it?
4 - finally, how would I wire it all together?
Apparently because then you can do stuff like donuts, smoking the tires and other similar stuff. :lookout:
I'm sure if I'm wrong I'll be corrected.
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zopperman
Moderator
Uhh if you have the switch without a relay following hearno's method the switch pressed = VSC on, switch unpressed = VSC off.
You can add the relay wherever you want -
30 - fused IGN 12v +
87 - not used
87a - input to ECU for VSC
85 - ground
86 - + trigger from switch.
This way, relay has 87a constantly giving output to the VSC in the ECU, when you hit the switch, the relay switches output to 87 which is not used and cuts power to 87a, effectively cutting the VSC.
Stuck CAPS
New member
gfluff
Member
VSC Disable on Pre 2008 4Runners - Toyota 120 Platforms Forum
I'm planning on using this method when I do mine. The idea is to connect a ground wire to the stock switch instead of a power/signal wire. When the switch is depressed, the ground is complete and the purple/red 4xECU wire is grounded, thus VSC is off. Pressing the switch again (button out) opens the circuit and un-grounds the wire. The stock switch has 4 connections, pos and neg for the light (lights up like other factory switches with headlights on), and then the signal in/out connections...but in my case, signal is just ground.
Not sure I need this mod either, just seems more interesting for the desert driving I'm hoping to do some more of....
I'm planning on using this method when I do mine. The idea is to connect a ground wire to the stock switch instead of a power/signal wire. When the switch is depressed, the ground is complete and the purple/red 4xECU wire is grounded, thus VSC is off. Pressing the switch again (button out) opens the circuit and un-grounds the wire. The stock switch has 4 connections, pos and neg for the light (lights up like other factory switches with headlights on), and then the signal in/out connections...but in my case, signal is just ground.
Not sure I need this mod either, just seems more interesting for the desert driving I'm hoping to do some more of....
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Stuck CAPS
New member
I assume it'll work the same when splicing to the Wire coming from the brake booster? (I have a 2WD, so I don't have the 4xECU, lol)
Stuck CAPS
New member
Basically, if you're having to pull into traffic when it's snowing for example, you can turn VSC off, so if you have a bit of wheel slippage, you won't just slide into traffic with the brakes cutting in on the wheel.
zopperman
Moderator
No, thats what I explained before. Think os it like this:
Here is your VSC circuit:
-----------------
Here is your VSC Circuit with a switch taht you add
--------|_|----------- - make sense? the _ is the button on the switch, see how the circuit isn't connected because the switch is normally open.
Now, you depressed the switch
---------|-|--------- and the circuit is active
release the switch and you get --------|_|--------
so to have ------- and VSC on for DDing, you need to leave the switch pressed.
