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Thread: Ecu re-learn procedure?

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    Default Ecu re-learn procedure?

    I've vitz 2011, It started vibrating after battery change, can anyone let me know ecu re-learn procedure?


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    I asked same thing from the dealership guy that if battery is replaced what happens as ecu resets, he told me that "we have to redo the process of ecu learning."
    Now you have to take your car to "Toyota Hyderabad Motors".

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    Toyota will charge alot for this :/


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    Not sure about vitz but here is the civic's procedure. Replacing battery resets the ecu, the rough idle is probably because either the engine was cold afterwards or you kept revving it.

    1. Heat up the engine until fan turns on (keep rpm between 2.5-3.5k if you want it to reach operating temperature quickly), i ran it 1 more min afterwards.
    2. Turn the car off completely.
    4. Remove fuse or battery (i removed battery negative) and wait 1-2minutes
    5. Make sure there is no load on engine (no lights, ac, blower anything at all) and reconnect the battery
    6. Start the car and let it idle for 10mins.
    7. Turn off the car and wait 2minutes.
    8. Start the car and drive normally. Step 8 confirmed that the unstable idle is fixed.

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    Just drive it around. It will be fine after some time. self learning works with these ecu.
    Keep a cool head and wear seatbelts!

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    I've driven like 200km, it still vibrates :/


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    Ecu re-learn procedure? - 1537551 vitz 2007 jerks whien applying break release accelerate 1418294304071

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    Quote Originally Posted by saboor73 View Post
    Ecu re-learn procedure? - 1537551 vitz 2007 jerks whien applying break release accelerate 1418294304071
    Thankyou, It worked


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    The idle relearn calibration is done with toyota scan tool only it needs throttle re learning and you will be done any other procedure are not valid for the toyota new 1kr series engine's introduced in 2011.
    Idle relearn is only done if the previous leaned settings are erased by scan tool. Only changing batteries dont effect the idle relearn calibration.

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    Default

    by re-learn do you mean re-mapping ? does it not happen automatically when 'RESET' [removing battery terminal(s) over night ] is performed?
    -
    supplementary question how about if an ECU from scrap does not match the engine for version difference. Can it be downgraded to a previous version, remapping via an OEM scanner. i.e Honda, Toyota, Suzuki, Mitsubishi
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    Quote Originally Posted by saboor73 View Post
    Ecu re-learn procedure? - 1537551 vitz 2007 jerks whien applying break release accelerate 1418294304071
    Does the ON means starting or keeping the key to ON position???
    1)Suzuki Mehran has changed its shape 2)Fake parts drive me nuts
    3)https://www.facebook.com/RoyaleEM

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