NikSC

i have a ES300.the VSC light on aswell as the VCS off (right and left sides). check engine also on. codes read P1133(air fuel sensor malfunction,B1 S1) under the stearing wheel is the switch for VSC off. when i press it, no changes. when i cleared the check engine and VSC lights, it stays off until i drive, then comes right back. i tested the switch with a multimeter (ohm buzzer) when i pressed it, it gave a resistance but went back to 0 right away... no steady resistance. is there another way for me to check if that VSC switch is working??? what else could it possibly be???

GEORGE_JET

You forgot to mention what year?

NikSC

ooops... '99

96Schwarz

Replace the oxygen sensor, clear the fault codes and the VSC light will go out too. Certain engine faults will turn on the VSC OFF light if the ECM believes it cannot correctly handle traction control.

NikSC

great. i just ordered the O2 sensor and will pick up monday. (fingers crossed)