Changes to the D3

Major change to CABUS communication on MY07 or 08 models, stopped some of the cascade faults.

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Originally Posted by CaverD3

Major change to CABUS communication on MY07 or 08 models, stopped some of the cascade faults.

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Are these changes hardware specific or software.
i.e updates available with say a gap tool, with the latest software.... does this improve the issue?