Problem:
Lexus GX 2023 all keys lost situation. The owner tried to back up immo data with Autel IM608 and g-box failed. Then he does reset immo box but when he tries add key, learning failed.
Error when back up immo data:
The current smart main ECU software version number is not supported
Solution:
TMLF12-1 (FCC ID: NI4TMLF12-1) is a smart key immobilizer model manufactured by DENSO used in various Toyota and Lexus vehicles. It typically operates on a 314-315 MHz frequency and is used for 8A-type knife keys and push-button proximity systems.
As Autel said, this ECU software version is not supported by Autel IM508/IM608.
Try other devices.
User feedback:
Autel failed. Lonsdor K518 pro working fine.
Programmed by lonsdor reset immo.







