When a new control unit for the headlamp range control is installed the control unit must be coded for the existing equipment.
Note:
A new control unit can have the code 0 stored.
Valid code for Audi A4 -05> (8H) is: 5.
Test prerequisities:
The battery voltage should be above 12 V.
Ignition on, engine off.
No faults should be stored in the fault memory.
Procedure:
Start the function: "Code control unit".
A dialog box presents the actual code and "Change value". Confirm with "Yes" to change.
The function can be interrupted with "No" if the code is correct.
Enter the new code (5) in the presented input field, confirm with OK.
A dialog box confirms: Code stored (with the new value) in memory.
Confirm with OK to exit the function.