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View Full Version : How do I Disable Toyota's VSC Sytem?



Lutzy48
11-19-2007, 12:44 PM
My 2002 4-Runner has a vehicle skid control system. Does anyone know how to install a switch to disable the system? There are times in mud and snow that it's a real PIA if the differential is not locked. I don't like to keep the differential locked when I am on hard surfaces.

DaveInDenver
11-19-2007, 01:14 PM
Are you talking about a center differential? I thought the point of the VSC was for snow so you didn't end up in a ditch.

teotwaki
11-19-2007, 01:47 PM
The 4Runner has

VSC = Vehicle Stability Control (corrects wild understeer or oversteer)
TRAC = Traction control (brakes and throttle)
ATRAC = Automatic Traction Control (brakes only, in 4WD, more agressive in 4Wlo))
and a Torsen Locking Center Differential (manually engaged turns off VSC)

On current model 4Runners the only (poor) way to disable VSC is to unplug a connector at the reservoir for the brake fluid. This also disables ABS!

http://i93.photobucket.com/albums/l70/rjr84/vsc001.jpg
This is in an FJ Cruiser but it is the same as the 4Runner

2008 4Runners will have a button to manually disengage VSC but no word on retrofitting to ours.

See this
http://www3.telus.net/public/bernse/brakecon.pdf

Cackalak Han
12-18-2007, 09:12 PM
Prob. a little late, but I installed a switch to disable the VSC/TRAC following this write-up.

LINK (http://www.yotatech.com/f127/disabling-vsc-trac-2001-2002-4runner-vsc-trac-systems-103814/)