A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
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Information Bus: Description and Operation
Data Bus On Board Diagnostic Interface
‹› Data Bus On Board Diagnostic Interface (J533) interlinks the different CAN bus systems in the vehicle.
‹› It transmits data from e.g. the engine control module (drivetrain CAN bus) to the instrument cluster (instrument cluster CAN bus).
‹› Fault finding is done in "Guided Fault Finding".