904 DEBA 3Q0057874A ENG 002.pdf

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 Install the navigation system or control unit 1 for information electronics -J794-.
 ELSA; Rep. Gr. 91

1.2 Coding the control units

It must be ensured that the open-circuit voltage of the vehicle battery is at least 12.5 Volts. To maintain the onboard voltage during the procedure, connect a -VAS590X- battery charger.
The request for the vehicle configuration (SVM code) only occurs once if the procedure and test operation is carried
out without any errors. Unprompted multiple requests may generate error messages and have no effect on the

Replace control unit (component protection):
 When the ignition is switched off, connect the vehicle diagnostics tester with ODIS Service to the vehicle

diagnostics socket.

 Switch on the ignition.
 Select the "Start diagnostics" mode and identify the vehicle.

The error memory of the vehicle is read-out. The new device with set component protection is displayed in the
 Select the device.
 Select "Cancel component protection".
The online connection is established and, if all entries were correct, the component protection is cancelled.
Rewrite PR numbers:
 Go to "Special functions" and start the "Adapt software" testing program.
 Select the button for "Retrofit / conversion with licence" and follow the instructions on the vehicle diagnostics tester
 Cut the connection to the vehicle diagnostic tester.
 After successful activation, restart the infotainment system (press the On/Off switch on the infotainment system for
more than 10 seconds).