Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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GF54.00-P-0004A Data Bus System Function



GF54.00-P-0004A Data Bus System Function







A data bus connects the individual control units and enables them to exchange data.

The signal from a sensor is passed on to the nearest control unit, processed by it and placed on the CAN data bus.

Each control unit that is connected to the CAN data bus can read this signal and use it to calculate an input to control an actuator.