The ECM must first be “unlocked” to program from the OBD port to allow effective gateway bypasses. If a programming attempt is made before the ECM is unlocked it will not receive the programming messages or commence the programming sequence.
OBD Unlock
There is now an OBD unlock solution available that allows the Yaris / Corolla to be programmed directly from the OBD port. This solution brings it in line with other EcuTek retail products and allows phone flash to work. To use the gateway bypass you only need to be using the latest ProeCU and ecu connect versions and the latest RaceROM patch (v2 and above).
Then you simply execute the programming sequence as you normally would, the RaceROM patch will then be installed using a server connection completing the gateway bypass and OBD programming can continue to be used as long a an EcuTek RR patch is installed in the ECU.
NOTE: IF you remove the patch (program a stock ROM in) the gateway unlock will be removed. This will require the ECU to be unlocked again with a patch and our servers.
Server Authentication issues
If the gateway unlock is unsuccessful due to server issues please wait 2 hours for the server to reset and try again. We are trying to improve the server reliability and as improvements are made updates will automatically be used.
If you have a server authentication issue you can still unlock with a physical bypass cable and install the RaceROM patch after this is does not require server access and OBD programming can continue unimpeded. This may end up being quicker then waiting for the server to automatically reset.
Physical Bypass ECU Unlock
To unlock a Yaris/Corolla ECU, you will need
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