Description of On-Board Diagnostics

CAN-bus On Board Diagnostic (OBD) interface -J533- ("Gateway")

Instrument clusters from 08.99 > are integrated into the vehicle CAN Data Bus network (may also be known as "CAN-Bus" or "Data-Bus").
The CAN-bus On Board Diagnostic Interface -J533- (which is integrated into the instrument cluster) enables data to be exchanged between the vehicle CAN Data-Bus network and the Data Link Connector (DLC) "K-wire".
The CAN-bus On Board Diagnostic Interface -J533- has specific On Board Diagnostic (OBD) capabilities that are accessed though using Scan Tool address word 19 - "Gateway".
Available functions for address word 19 - "Gateway".

Notes on exchanging instrument cluster

- On replacement instrument clusters, the CAN-bus On Board Diagnostic Interface -J533- must be coded according to vehicle market version and equipment level variables.
- Select 1 "Rapid Data Transfer", switch on ignition.

Indicated on display:


Rapid data transfer HELP
Insert address word XX

- Press buttons -1- and -9- to select address word 19 - "Gateway".

Indicated on display:


Rapid data transfer Q
19 Gateway


- Press -Q- button to confirm input.


Indicated on display:


6N0909901 Gateway K <-> CAN 0001
Coding XXXXX WSC 00000


Readout, top line
- 6N0 909 901 = Control module identification (example only)
- Gateway K <-> CAN = System designation 1)
- 0001 = Software version

Readout, bottom line
- Coding XXXXX: Coding dependant on engine version and optional equipment.
- WSC 00000 = Workshop code

1) The CAN-bus On Board Diagnostic Interface -J533- (which is integrated into the instrument cluster) is identified as "Gateway".

- Press -> button

Indicated on display (select function):


Rapid data transfer HELP
Select function XX

Available functions

Function

02 - Diagnostic Trouble Code (DTC) memory, checking
05 - Erase DTC memory
06 - End output
07 - Control module, coding
08 - Read measuring value block

NOTE:
- Press the HELP button to print out a complete list of available functions. This list indicates the function capability of the VAG 1551 Scan Tool (ST) only, and does not necessarily reflect the function capability of vehicle systems equipped with OBD. For instrument cluster address word 19, do not attempt to select functions other than those listed above.
- After the function is completed and forwarded with the button, the VAG 1551 Scan Tool (ST) returns to the following start position: