Tuesday, May 19, 2026

Autel IM608 Lexus GX 2023 ECU Software Version Not Supported?

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.

Autel IM608 Lexus GX 2023 ECU Software Version Not Supported 1

Autel IM608 Lexus GX 2023 ECU Software Version Not Supported 2

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.

Londsor k518 Lexus GX 2023 1

Londsor k518 Lexus GX 2023 2

Londsor k518 Lexus GX 2023 3

 

 

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