Categories: Auto Repair

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”

Vehicle identification and select the immobilizer system according to your key

Click “Next”

Click “Health Check”

Check “Perform Health Check on All ECUs….”

Then click “Next”

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

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

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

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

It is a PDF guide

In the PDF to locate your vehicle information

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

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

Click “Next”

Select your J2534 device tool,and click “Next”

Downloading current calibration information from vehicle

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

Now just follow the prompt message to operate

Click “Next”

Prepare for reprogramming

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

Now please wait for flash calibration update process

Turn ignition OFF,then click “Next”

Turn ignition ON

Now it will read current calibration information from vehicle again

Reprogramming successfully

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

auto

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