How to Reprogram/Upgrade Toyota Corolla ECU/PCM by Techstream

This instruction show you guide on how to use Techstream to do ECM or PCM reprogramming for Toyota Corolla.

 

Preparations:

Latest Toyota TIS Techstream V15.10.029 Software Free Download

 

Procedures:

Connect Techstream interface to vehicle obd port,then run software to click “Connect to Vehicle”

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Vehicle identification and select the immobilizer system according to your key

Click “Next”

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Click “Health Check”

Check “Perform Health Check on All ECUs….”

Then click “Next”

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Now here show you all DTCs on each system,click “Yes” to perform update

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It will take you to Toyota official website,enter ID and password to login

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Here in the top box as in the current calibration is listed.

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But if we scroll down we can see that it gives us a list of current ECU calibration.

Click the hyperlink to check the procedures

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It is a PDF guide

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In the PDF to locate your vehicle information

Here it is Corolla 2012/2013,click “302V6100”to download calibration file

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Open the calibration file,it will automatically bring up the calibration update wizard

Click “Next”

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Select your J2534 device tool,and click “Next”

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Downloading current calibration information from vehicle

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Selected Calibration file is authorized to update this vehicle,press “Next” to continue

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Now just follow the prompt message to operate

Click “Next”

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Prepare for reprogramming

Confirm the following conditions as pictures,then click “Start”

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Now please wait for flash calibration update process

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Turn ignition OFF,then click “Next”

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Turn ignition ON

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Now it will read current calibration information from vehicle again

Reprogramming successfully

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You can go back to Techstream to perform “Health Check” again to check ECM/PCM status.

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