Question about 1999 Toyota Avalon

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''Check Engine'' Light won't turn off; ''Trac-Off'' light turned on,

And will not shut off.

''CE'' light first came on last week, took to mechanic, he replaced o2 Sensor and wrote: ''renew o2 Sensor bank, 2 sensor 1-thread repaid''

''CE'' light will turn off at mechanics, but come on again down the road; now the ''T-O'' light is on as well (incidently, dash lamp trouble light will also not turn off and all bulbs have been replaced and are working).

Thanks, Eric H.

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  • 3 more comments 
  • ps2515 May 20, 2009

    Thanks for your suggestion; a little miffed as to what "pump brakes 10 times" has to do with a disconnected battery? But then, I don't understand what "Trac" means to begin with . . . Can you explain briefly?

  • ps2515 May 20, 2009

    Thanks for suggestions; I'm going through them and seeing which one/s work; will post when it's solved.

  • ps2515 May 20, 2009

    Thank you, Louie_3006, I did just what you said (even pumped the brakes! which I still don't understand the connection, but then, I'm not a mechanic; a musician): the lights cleared out and all is well. I still have the car light issue, but that was existent; I'm going to just go back, recheck all the bulbs and see if that helps. Best wishes to all and thanks to all.

  • yadayada
    yadayada May 11, 2010

    did u read what I wrote, it is a correct statement

  • yadayada
    yadayada May 11, 2010

    then the problem was not diagnosed correctly, u threw your money away on the part he replaced. until the fault is corrected the light will remain on


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You need the mechanic to turn off these signals since you have scanned and fix the problems.

Rate this please

Posted on May 20, 2009

  • Onifade Adewunmi
    Onifade Adewunmi May 20, 2009

    For Toyota products, remove the battery connectore for about 5 Minutes and replace back. the lights automatically goes off.


    Dont forget to rate the solution after trying it out.



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Hello, I would unhook the battery cables for 30 minutes and pump the brakes about ten times and then rehook the battery cables. This is the most cost effective way to do this. If you want it professionally done I would take it to the dealership and they can clear the codes for. I hope this helps.

Posted on May 20, 2009

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