Purpose: Enables the installation of a retrofit trailer hitch (trailer/towbar retrofit).
Caution! The configuration in the control unit for motor 01 is not supported for certain models. In this case, the coding can be skipped. Control units that are not installed can also be skipped. Please note that certain coding steps must be performed based on the part numbers of the installed components (camera).
Warning!! Depending on the modules you have installed, there are up to 12 coding lines to complete here; most ECUs require a long coding process with a “trailer” that must be enabled!
Proceed :
1 – Engine off, ignition off, connect your official VAG-COM VCDS cable to
the computer, then plug the other end into your vehicle’s diagnostics socket.
2 – Switch on the ignition and run the VCDS program.
Line 1:
3 – Click “Select,” then click “19 – CAN Gateway.”
4 – Select “Installation List”
5 – Check the box next to “69 – Trailer” in the list
6 – Save coding
Line 2:
3 – Click on“Select”, then click on“01 – Motor“.
4 – Click on ” Coding – 07” then click on“Long Coding Helper“.
5 – Select byte “05“
. Then check bit “4“: “Trailer installed“
Line 3:
3 – Click “Select,” then click ““09 – Cent. Elect.”“.
For power plants with coding:
4 – Click on “Coding – 07,” then click on “Long Coding Helper“
5 – Select byte “01“
Then, in the “Bit 0-7” drop-down menu, select “01 Trailer Connector Diagnosis active“.
Or Byte“01” check Bit 1“Trailer Hitch Control Module Installed”.
For power plants without coding :
4 – Click on“Security Access – 16” then enter the code“31347”.
5 – Click on“Adaptation – 10”.
6 – On this page, at the very top, there is a drop-down menu.
In this drop-down menu, choose“Networking trailer connection device”.
7 – On this same page, there’s a second drop-down menu at the bottom
of the page.
On this menu, select“built in” and confirm.
Line 4:
3 – Click on“Select” then click on“03 – ABS brake“.
4 – Click on“Security Access – 16” then enter the code“24990”.
5 – Click on“Adaptation – 10”.
6 – On this page, at the very top, there is a drop-down menu.
In this drop-down menu, choose“trailer stabilization”.
7 – On this same page, there is a second drop-down menu located toward the bottom
.
From this menu, select “Active” and then confirm.
Line 5:
3 – Click “Select,” then click “10 – Parking Assistance.”
4 – Click on“Security Access – 16” then enter code“71679” (optional code)
5 – Click ” Encoding – 07,” then click “Long Coding Helper“
6 – Select byte“03”
Then check Bit 0-1 “01 Trailer Hitch installed (manually removable)”.
Line 6:
3 – Click on“Select” then click on “.13 – Auto Dist. Reg. “.
4 – Click “Security Access – 16,” then enter the code “14117” or “20103“
5 – Click ” Encoding – 07,” then click “Long Coding Helper“
6 – Select byte“02” (camera 5Q0) or“03” (camera 2Q0/3Q0)
Then check Bit 3 “Trailer Recognition Control Module installed”.
Line 7:
3 – Click on“Select” then click on “.34 – Correct. Assiet. “.
4 – Click on ” Coding – 07” then click on“Long Coding Helper“.
5 – Select the “00” byte
Then set bit 7 (“trailer, 0 = not installed / 1 = installed”)
Line 8:
3 – Click “Select,” then click “3C – Lane Change.”
4 – Click on ” Coding – 07” then click on“Long Coding Helper“.
5 – Select byte“02” (camera 5Q0) or“00” (camera 2Q0/3Q0)
Then check Bit 4-7 “10 or 20 ECU for draw bar, with ECU for draw bar”.
Line 9:
3 – Click “Select,” then click “6C – Rearview Camera.”
4 – Click on ” Coding – 07” then click on“Long Coding Helper“.
5 – Select byte “04“
Then set bit 0 (“equipment_ahk, installed”)
Line 10:
3 – Click on“Select” then click on “.6D – Trunk Electrical System “.
4 – Click on ” Coding – 07” then click on“Long Coding Helper“.
5 – Select byte “01“
Then set bit 7 (“trailer, 0 = not installed / 1 = installed”)
Line 11:
3 – Click on“Select” then click on “.A5 – Front, Sensors, Driver Assistance “.
4 – Click on“Security Access – 16” then enter the code“20103”.
5 – Click ” Encoding – 07,” then click “Long Coding Helper“
6 – Choose the line according to your camera reference!
Select byte“16” (Camera 5Q0)
Then check bit 0-7 “01 trailer_control_module, installed”.
OR
Select byte“11” (Camera 3Q0)
Then set bit 0 ( “AAG, 0 = not_coded / 1 = coded”)
OR
Select byte“05” (Camera 2Q0)
Then set bit 4 (“AAG, 0 = not_coded / 1 = coded”)
Line 12:
3 – Click “Select,” then click “69 – Trailer“.
4 – Click on ” Coding – 07” then click on“Long Coding Helper“.
5 – Select byte“01”
Then check Bit 0-3 “01 Diagnosis of the line to the socket, active”.
Select byte“03”
Then check Bit 0-3 “01 Terminal 30 output (pin 9 socket), activated”.
OR
Select byte“04”
Then check Bit 0-7 “02 Terminal 30 output switched (pin 10) Trailer connected”.
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