Operation CHARM: Car repair manuals for everyone.

Instrument Cluster / Carrier: Description and Operation






Data Bus On Board Diagnostic Interface (J533)

The Data Bus On Board Diagnostic Interface interlinks the different CAN bus systems in the vehicle.

It transmits data from, for example, the engine control module (drivetrain CAN bus) to the instrument cluster (instrument cluster CAN bus).

Fault Finding takes place in "Guided Fault Finding" using the Vehicle Diagnostic Tester.