Mercedes W222 A/C Control Unit Programming using CG100X

Here we got a Mercedes W222 2018 and we need to remove the old A/C control unit and install a new one.

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First, we need to read the Renesas chip.

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Start CG100X software.

Select

Programmer>>Renesas>>RH850>>R7F701064

Wiring diagram of 144pins.

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Connect to old module by soldering.

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Read D-flash.

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Read P-flash.

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Read OPBT0.

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Read Boot.

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Connect to new module.

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Write original data to new module.

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Installed back and everything goes well.

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Done! That’s how to clone AC control unit using CGDI CG100X.

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