How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Skyvisions Your Own Question

Skyvisions, ASE Certified Technician
Category: Toyota
Satisfied Customers: 13754
Experience:  Toyota Master Diagnostic
Type Your Toyota Question Here...
Skyvisions is online now
A new question is answered every 9 seconds

2003 Toyota Camry: My check engine light..gas cap..Trac..lights come

Customer Question

2003 Toyota Camry - My check engine light was on, got the codes from AutoZone, and replaced the gas cap. I disconnected the battery to see if the check engine light would reset, and it did - it no longer lights. However, now the VSC and "Trac Off" lights come on after starting to drive (they don't light immediately, just after I put the car in gear and start moving). I can tell the anti-skid is not working - just drove in snow. Could the battery disconnect be related?
Submitted: 5 years ago.
Category: Toyota
Expert:  Skyvisions replied 5 years ago.

Do you know what the code numbers are that are set in the system after the visit to AutoZone? If you have vehicle skid control it will shut off by default with the check engine light. However by removing the negative battery cable it is possible that you erased the zero point calibration for the vehicle skid control system sensors. Do you know what the codes are that are set in the vehicle skid control system?



Customer: replied 5 years ago.

I'm not sure I'm interpreting your question properly, but I do have the codes given to me at the Auto Zone when the check engine light was lit:






The guy at the AutoZone told me that based on those codes, I should replace my gascap - he also told me that if I wanted to see right away if the gascap solved the problem, then just disconnect the battery and reconnect - the check engine light will go off if the gascap was the problem.


Also, referencing your message about the VSC automatically going off if the engine light is on...that light was never on until I started the car after reconnecting the battery


Expert:  Skyvisions replied 5 years ago.

Although part of the information that AutoZone is telling you is partially correct. Based on the codes you had listed the most common denominator is the gas cap. However there are several problems with the close canister valve and other issues with the charcoal canister that can set the 446 code and the 441 code. Whenever the check engine light comes on it is supposed to trigger the vehicle speed control system to shut down and turn the VSC light on this happens by default. As to why it never did on yours is difficult to say but it should have. All this being said you're probably looking at having to have the zero point calibration procedure done in order to reset the yaw rate sensor and the deceleration sensor points for the vehicle skid control system. There's no way to know for certain unless I have a specific code numbers from the VSC computer. This can be done by jumping two terminals as seen in the diagram below in the DLC three connector under the edge of the instrument panel on the driver side. And monitor the flash pattern on the VSC light. Click the link below and save for the pin location.



JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU! Jughead USA
< Previous | Next >
  • THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU! Jughead USA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland

Meet The Experts:

  • Chris (aka-Moose)

    Auto Technician

    Satisfied Customers:

    16 years of experience
< Last | Next >
  • Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Auto Technician

    Satisfied Customers:

    16 years of experience
  • Marty's Avatar


    ASE Certified Technician

    Satisfied Customers:

    ASE & Bosch Master Tech. 30 years experience.
  • Amedee's Avatar


    Toyota Technician

    Satisfied Customers:

    ASE Master Technician advanced level specialist. Wisconsin certified emissions state inspector
  • Anthony's Avatar


    ASE Certified Technician

    Satisfied Customers:

    ASE Master Automobile Technician with over 20 years exp. in this field.
  • Richard's Avatar


    ASE Certified Technician

    Satisfied Customers:

    Toyota tech. ASE Certified Technician
  • Skyvisions's Avatar


    ASE Certified Technician

    Satisfied Customers:

    Toyota Master Diagnostic
  • Genchi Genbutsu's Avatar

    Genchi Genbutsu

    Toyota Master Technician

    Satisfied Customers:

    Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine