tyson rust

2001GS300 over 250k miles VSC light is on? went off for a few weeks [installed new denzo spark plugs. lights were off [prob after resetting computer they stayed off 3weeks. Now vsc lights are back on any suggestions?

MikeFig82

iTrader: (13)

If it's just the VSC lights. Check the ABS speed sensors. One might be completely dead, and not sending signal. If you have a ABS scan tool it'll let you check which one is bad. If not you can disconnect it, and check it for resistance with an DMM.

shwalker07

Is your engine light on as well?

tyson rust

yes it is thats because i need to get the vacuum valve installed. But it did start blinking once i accelerated hope that helps

tyson rust

yes the engine light is on

shwalker07

With certain engine codes and the check engine light on, it can disable the vsc system and cause the light to stay on. My friend had a bad oil vvti solenoid and that caused the vsc light to come on with just that one engine code on a IS300.

What exactly are your engine codes?

tyson rust

it was regarding charcoal filter the or solenoids

shwalker07

Get the code read from your local Autozone or auto part store. They should come in a Pxxxx forum for example P0421. Let us know what you have.

tyson rust

ill try to locate again i had it written down

Ilemon33

iTrader: (1)

Probably abs speed sensor. My gs had the same problem after only 100,000 miles. Not too hard to replace