Toyota Tundra 2019 RH66 Mileage Correction with CG100X

This is a Toyota Tundra 2019 model. Here we will show how to correct mileage with CG100X programmer.

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Original mileage: 199,494miles

 

This is the instrument cluster. The processor type is S6J32CSK but there is an RH chip over there. It is the RH66 chip that stores the mileage data.

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CG100X does not support S6J32CSK processor so we try to read RH chip and see if it is working.

This is a microchip. Take this eeprom RH chip off. We are going to read the eeprom with CG100X and correct mileage.

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Desolder RH66 chip to eeprom adapter.

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Connect adapter with cg100x

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In CG100X software, we go to Serial>>RHXX>>RH66

Then we click on Read then read eeprom.

Back up the data if anything corrupt you can rewrite the backup.
Save data.

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CG100X does not have Tundra 2019 option. We use Toyota Alphard option.

Go to Dashboard>>Asian Car>>Toyota>>Alphard>>RH66

Read data.

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CG100X detects original mileage which is correct.

Enter the new KM you desired.

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Mileage correction is completed.

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Save new mileage data.

Solder chip back to cluster.

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Check new mileage on dashboard.

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Done.

 

See also:

Toyota Honda S6J3001 Cluster Mileage Correction with CG100

CG100X Hyundai Santa FE 2021 MB91 Mileage Correction

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