im effin sorry for bumping such an old thread but this has saved my life... my damn runner would not move an inch while in 4wd cause the damn vsc would kick in all the time and its damn dangerous driving like that. i was crossing this one intersection and i kinda needed to give it a lil gas and the truck just rolled to the middle of the street and stayed there with the vsc light blinking almost got hit from the side, luckily the other cars stopped... and i though it was just my truck messing up but now i know there is a fix im deff gonna do this asap.

thanks and again sorry for reviving an old thread.

 

I have snow on the hood so I can't look right now but are the pins marked? E1 & TS. How long has this lasted before you guys needed to re-recalibrate?

 

Wait?! The engine cutout isnt normal?

 

and just how do you recalibrate the speedometer to compensate for larger tires?

 

So, this vsc track and abs came on on our 04 4runner. I attempted to do the zero point calibration using the obd port as the pictures don't show up on this thread anymore and the only instructions online I could find were on youtube on this link. http://m.youtube.com/watch?v=55XmiSsGQgo

It didn't work. The most I got to happen is the abs light blinked constantly, and now it is out, so only track, and vsc are on. Any suggestions before I get bent over by the dealer? We recently Put new tires on, but this is the first time is acted up in 135,000 + miles. The nee tires are that same size as the over sized 265/70 r17 pirelli scorpion atr we had on since like 35k. This time we went with falken rocky mtn atr.

 

There are detailed instructions here

http://mike-thomson.com/blog/?p=1143

 

vsc and trac off lights still on. no check engine light. did the 0 point calibration multiple times to the t. I cant stand to have those lights on all the
time, what else can be done?

2002 4runner sr5 sport edition. I followed the instructions in the post above mine.

 

^^^

dcshoes1, did you figure out your problem? the same thing is happening to me. during the recallibration process my ABS light is going into a fast blink mode and the final blinking of the VSC lights isn't happening, they just stay on solid

 

Fog, the link to your pdf is no longer active. Is there some way i can get a copy of it?
- manymods

 

It seems like some issues and topics never die. Personally, I've about had it with Toyota and their long lasting vehicles. You take the best care you can of your car and as soon as you hit 100K the vehicle becomes a money pit starting to fall apart and rust out -- at least in the NE.

Anyway, I want to ask again if anyone has found a better way to permanently disengage the VSC TRAC system without a switch and without having the VSC light constantly on. I have also been looking for a simple ON-OFF OEM switch that doesn't cost $50.00. If anyone has a PN for one I'd appreciate it.

Finally, I went through the previous thread and tried to make some sense out of it since me reading the FSM is futile. I assume the subject is reviewed in section DI-221. Here is what I put together to be vetted by the guys who are most knowledgeable.

CALIBRATING YAW and DECELERATION SENSORS ON 2002 4RUNNER
The VSC TRAC system uses two sensors a steering angle sensor hooked to the steering wheel and a yaw rate sensor. The yaw rate sensor needs to know what the normal angle of the car is side to side, front to back and front left to right rear and left rear to front right. It needs to know this to know when the vehicle is yawing (IE skidding).

Recalibration is simple to perform and all you need is a level surface and a 4-inch long jumper wire stripped at both ends.

(Note: I believe the calibration has to be done in the following order.)

To reset the VSC TRAC have the vehicle parked on a level surface both front and back and side to side (this is very important).

(Note: Do not put any weight on the vehicle that at any time could offset it from being level)

This is the procedure for calibrating the yaw sensor:
1. Open the DLC-1 diagnostic port on the driver side in the engine compartment
2. Turn the ignition on
3. Using the jumper wire connect the E1 and TS pins 4 time or more within a 8 second period
4. Check that the VSC TRAC light on the dash came on again, it should be on for several seconds and then go out
5. Turn the ignition off
6. Wait a few seconds, then turn on the ignition and wait for the VSC TRAC light to go out

This is the procedure for calibrating the deceleration sensor:
1. Connect terminals E1 and TS again on the DLC-1 diagnostic port
2. Turn the ignition on
3. Check that the VSC TRAC light is on for about 4 secs and then starts blinking at 0.13 sec intervals
4. After the light has been blinking for 2 secs turn the ignition off
5. Remove the jumper wire

 

Thank you.
Been hating the brakes anti-skid control.
We live in the mountains and when going through a curve, the brake hits hard and you are veering into oncoming traffic or the shoulder. The blood pressure goes up and my passengers are frightened. I love my family too much.
Toyota said it was my bad driving habits.
I followed the directions and my trail is driving correctly without the excitement

 

http://fogwireless.com/HAM/vsc.pdf

 

my doing the same thing only when I turn my steering wheel to the left I did the zero point and still the issue

 

My zero point re-calibration also seemed fruitless, until I realized tire pressure was ridiculously low! After putting proper air in the tires and feeling silly, turned out the zero point was helpful, but did not really fix the prob for me, either. [Have not heard as much on here, but I wonder if mis-alignment can cause this issue?] Ended up doing the AndyMod 2, which fixes everything but the Trac / VSC lights. I recommend doing this if you are comfortable with modifying the factory wiring. Took me about 40 minutes start to finish. Makes driving fun again.

 

Got my shovel out and began digging up this thread again...

New here. I'll post in the introduction thread after this because first, thank you FOGRunner for this. I followed the procedure and it worked...until...well, read here.

The previous owner of my 2002 4Runner 2WD experienced the dreaded Trac / VSC lights coming on. After she went to several mechanics who hadn't a clue how to resolve it even with the OBDII scanners, she drove with the lights on for years with no issues. When I purchased it a bit over a month ago, it also had a CEL code which ended up being a broken o-ring seal on the gas cap. Problem solved on the CEL.

As I researched the Trac / VSC issue I was hard pressed to find accurate information regarding this that actually worked for this vehicle. All of what I found in forums and YouTube related to shorting out terminals from the OBDII port. I did other things such as remove and clean the ABS sensors and search for any electrical shorts in the wires, etc.

But ... then I found this thread. So I did this procedure last week.

Now, jump forward to today. Trac / VSC lights came back on. Back up again to a few days ago, the weather has been absolutely clear with no precipitation. I've driven on highways, back roads, over bumps, etc. But again to today, it was a rainy morning. The lights came on while I was on the highway at about 70mph a few minutes into driving.

I have not calibrated again just yet. So my question to anyone experiencing this is what may have happened here. Why did the lights come on again? Note, no ABS light came on, although I should mention that was on as well when I bought the truck and went off with the calibration.

 

i have done this procedure on my 01 4runner limited so why is my VCS light staying on all the time?

 

I have done this procedure on my 01 4runner limited so why is my VCS light staying on ?