It’s a Toyota Yaris GR year 2022 with 8A blade key. The customer lost all keys on this vehicle in the United Kingdom.
Try to read the immo box on bench with Autel IM608, the connections in the box are not the same.
This is the immo box.
This is the wiring diagram in Autel IM608.
The connection is different but if you find the right pinout will be possible to read it.
Here is the wiring diagram for this immo box.
4 Positive
5 T3
6 ignition
9 k7
12 ground
Read IMMO data in direct mode.
Connect the immo box with Autel 8A non-smart AKL cable and Gbox3
Do a immo status scan.
Erase fault codes.
Then add key with IM608.
After key programming is completed, reinstall the immo box back to vehicle.
Install programmed immobilizer unit in thsi vehicle and start vehicle.
If this wiring diagram not working for EU 2023/2024 Yaris Cross, they should be 3rd generation H Key, many tools cannot connect to this immo box and read a key/reset it. You must replace with a new unit and register new key(s) with a TIS challenge code then register immo-ecu by diagnostics. This is the same immobox as in MZEA1 Corolla or 300 series Hiace. There are currently no aftermarket options for these vehicles, you must replace and register as per the factory manual.
To finish the work, remove the immobilizer box from under the dashboard. a new immobilizer box, an 8A chip and an original remote control from the Toyota dealership are needed. And finally, you need to bring in a technician to do an online synchronization for the immobilizer and ecu.
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