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Expert: Ted Ritter - 10/27/2009


Question
This morning, while driving on the Interstate, the VSC TRAC warning light went on, as well as the Malfunction Indicator Lamp (engine light).I have 2003 Toyota Highlander.
 Thanks

Answer
The check engine light is the root cause of the problem, whenever it turns on the other systems are diabled and the lights will turn on. You should have the fiagnostic trouble codes retreived. If there is an autozone store close by contact them they will do this at no charge so will most large autoparts chain stores. When you know the codes post a follow up if help is still needed.

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Ted Ritter

Expertise

I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for almost ten years an have answered over 16,000 questions helping Toyota owners with their problems without any compensation, some of my answers are published on many other websites via google and other search engines. AllExperts recently added a new feature which allows questioners to donate to experts on the site, any amount of donation is very much appreciated, to make a donation just click on the DONATE button.

Experience

Toyota technician since 1979,expert in electrical systems,OBD systems,engine repair, driveability problems,EFI systems,ASE certified,Toyota master technician.
Certified Hybrid Vehicle technician.

Education/Credentials
Toyota master technician, ASE certified in eight catagories, Hybrid vehicle certified. Toyota technical training: Engine Automatic transmission Manual transmission Drivetrain Electrical systems Brakes and chassis Air conditioning Engine performance and diagnostics Hybrid systems

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