Volkswagen Workshop Service and Repair Manuals > Golf Mk5 > Vehicle electrics | Electrical system | Wiring | Control units

Data bus diagnostic interfaceJ533

Data bus diagnostic interface -J533-

Note

Additional information:

General description:

The data bus diagnostic interface -J533- (Gateway) is designed as a separate control unit. It is responsible for the following in the vehicle:

t	Exchange of data between the CAN data bus systems „powertrain CAN data bus“, „convenience CAN data bus“ and „infotainment CAN data bus“.

t	Conversion of diagnostic data from CAN data bus systems to K lead and visa versa, so that data can be used by vehicle diagnosis, testing and information system -VAS 5051A-.

Note

If the data bus diagnostic interface -J533- is to be removed, the procedure → Chapter „Renewing data bus diagnostic interface -J533-“ must always be performed to read out the codes stored in the unit.

Fault detection and fault display:

The data bus diagnostic interface -J533- is equipped with self-diagnosis, which is designed to simplify fault finding.

For fault finding, use vehicle diagnosis, testing and information system -VAS 5051A- in „Guided fault finding“ mode.

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