Question about 2004 Toyota RAV4

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OBD2 PROTOCOLS Hi, which obd2 protocol is mostly favored for Toyota premios,carina,sprinter/corolla-110s and the caldina? thanx, Kimani

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  • Donald Lyimo Jul 20, 2008

    Have same problem.Bought an autoenginuity scan tool that could not talk to same cars.they said they use dierent protool.


  • Anonymous Jul 16, 2015

    old post and keeps being added to answers live endlessly, so i corrected it.
    the PCM protocols are different in each county, OBD2 is only for USA. (EPA laws, end to end and is our protocol.)
    1996 to NOW. (and in 2004 can-bus tools are needed by law, in USA.)
    not posting your country makes answers impossible to even the well informed,!!!

    if you are say, in Europe? they use EOBD
    note the E there? on many newer year cars.
    and is YOUR protocol.
    if you were to buy the FSM book from toy
    in your country , it tells you, on the first
    page of the PCM what you have. no kidding.

    if your country does not dictate what to use
    Toyota makes that decision. (yup some countries have zero smog laws...)
    and could be:
    OBD1 (a proprietary secret for most cars.)

    read the FSM book, and see why.!
    factory service manual....

    Here in USA, I have one cheap scan tool
    it works on all cars back to 1996, and that was the intent of the EPA to do that.(here)
    1996 to NOW.
    the 16pin connectors are all the same here.
    as is pinout. and levels and handshake protocols and more.... lots more.

    In other countries, you need 5 tools or more
    and 10 cables to get it working..
    up to that.



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  • 22,326 Answers

Tough cookie,waste of time and money these weekend mechanic gizmos,encrypted software ---DEALER ONLY ,,,designed to keep all work in the dealers

Posted on Dec 27, 2008


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OBD2 is a USA protocol
you never stated your country?
if in say UK, this would be not OBD2 but EOBD.
European OBD. see? our cars are USA OBD2 ( invented it here OBD2 is our protocol)
but in your country it's ISO spec. EOBD. (UK) or?
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on some cars the RAV4 didnt get OBD2 or EOBD until 2006
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open hood , look up see stickers? read them here is one.
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no year, ouch' this is the world wide web. and ..... anyone can post.
what year, 1968-2001
what country? sorry , each country uses different EFI systems
so no country , no joy,. be the first to state country
my hit rate is 1 in 4271. where poster disclosed country car was sold.

there are many scan tools ,(0ld and new)
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look here and see the vast confusion on sprinters.
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