check engine, VSC, and Auto Trac lights all came on?

2002 TOYOTA SIENNA
80,500 MILES • 6 CYL • 2WD • AUTOMATIC
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G123
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The check engine, VSC, and Auto Trac lights all came on at the same time.
Sep 27, 2008 at 1:02 PM
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SQM
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Hello,

This sounds like an issue with the vehicle stability control.
It could be the module or number of other issues triggering the error light.
First you will need to get the ABS module scanned for trouble codes. It can help determine the issue. As this could as simple as a sensor at the wheel which might have gotten loose or a wiring issue.

Here is a helpful video of how to retrieve those codes:

https://youtu.be/rTtAnsOlZU4

The engine light can be related to the same issue.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

I have attached diagrams for your reference.

Please let me know of any questions.
Thank you.
Sep 19, 2021 at 12:03 PM