The abs/vsc/trac and check engine lights stay on. could this be a problem associated with emission control?

1. Traction Control System Problems - Car Forums and Automotive Chat ...

   www.automotiveforums.com > ... > Toyota > SequoiaTraction Control System Problems Sequoia Car Forums. ... The VSC/ATRAC indicator lights are staying on and the system will inadvertantly ..... giving a bad reading following the replacement of the steering angle sensor with a new one.

Check operation and condition of ABS sensors . Also check suspension and steering components and wheel alignment then retry and report back if necessary.

you need to have code erased using code scanner.any time replace sensor you have to erase code or check engine light stay on.

When the Trac off light is blinking it indicates an issue with the ABS system.


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Hi, have you scanned the vehicle to see why your check engine light is on? IF no, you need to. Toyota/Lexus computer system illumniates both engine light and VSC lights whenver a fault occurs in either unit. VSC or stability control is like trac-control or ABS braking system. Get car scanned and make sure all computers are scanned for additional codes, repair them first reset lights and test drive. ON a side note, fixing check engine light will usually take VSC light away also, however sometimes the VSC system will glitch out and a Steering Angle relearn is necessary, it takes about 3mins to perform and a good quality scan tool with 2004 current software. Good Luck.

Most of the time the VSC light will come on with check engine and trac off light. (picture of veh with squiggle lines behind it) Whatever triggers a Check eng turns the vsc and trac systems off. could be a loose gas cap or something related to emissions system. Most times it will have to be diagnosed. Veh maybe equipped to turn vsc off, there would be a button for it.

VSC lights always go on during a "Check engine" period so just get the engine fault code and DIY or go to a TRUSTED mechanic (or someone you trust goes to).It is likely an emissions problem.

vehicle skid control and traction control you may be having an (abs) anti locking brake problem

As long as it does'nt stay on it's doing what it's suposed to be doing which is saving you from going out of control. It'll come on more often if you drive like hell, run with low tracktion tires or worn out ones and if the air pressure is low. If your tires have over 80,000 miles on them even if the tread is still good their bad tires as their skating along and the trackstion system is working hard to keep the car under control. If the tires aren't al the same size it'll do it to. ( fronts worn out backs still with tread.) Mis matched tires too. Ifthe light stays on other light's are bound to be coming on too the ABS light the brake light, and even the engine light as their all involved in traction control.

Please, make your mechanic check the ABS computer. My RAV4 did the same thing, but the mechanical components were alright. After a while, I almost fell off a cliff because my brakes stopped responding properly. When further checked, my mechanic discovered that the ABS computer was damaged. The part alone costs a whooping $3 thousand bucks, not including labor. So, beware and take precautions. Your life may be endangered.