
Purpose: activates the Traffic Jam Assist (TJA) (for vehicles equipped with Pre-Sense).
The Traffic Jam Assistant can take over steering at speeds of up to 65 km/h on well-maintained roads in the event of traffic jams. The system uses radar and ultrasonic sensors as well as the front camera to guide the vehicle by gently adjusting the steering and following the traffic ahead within the system’s limits. The traffic jam assistant uses road markings and other vehicles on the road to orientate itself.

Watch out! There are 4 lines of coding to do here. (Use experimental data)
Procedure:
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 on “Select” then click on “13 – Auto Dist. Reg” .
4 – Click on“Coding – 07” then click on“Long Coding Helper”.
5 – Select
Byte 01
check Bit 3 “Traffic_jam_dependent_linear_tracking”
check Bit 4 “Assistent_for_traffic_hold_up”
Byte 02
check Bit 0 “Automatic_driveaway_by_pretrigger”
check Bit 1 “Automatic_driveaway_after_short_stop”
check Bit 2 “Driveaway_by_triggerleaver”
check Bit 4 “Curve_assistent”
Byte 03
Check Bit 5 “Traffic_jam_assistant_in_car_menu”.
Byte 04
check Bit 2 “Emergency_Assist”
check Bit 7 “Dense_traffic”
Byte 06
check Bit 3 “Emergency_steer_assist”.
Line 2:
3 – Click on “Select”, then click on “Select”.A5 – Frt Sens. Drv” .
4 – Click on“Coding – 07” then click on“Long Coding Helper”.
5 – Choose byte 16
Then tick Bit 5 “STA”.
Line 3:
3 – Click on “Select”, then click on“44 – Steering assistance”.
4 – Click on“Coding – 07” and then click on“Long Coding Helper”.
5 – Select
Byte 02
check Bit 0 “Heading Control Assistant”.
Byte 06
check Bit 0 “Traffic Jam Guidance Assist”.
Line 4:
3 – Click on “Select”, then click on “5F – Electronic Information”.
4 – Click on“Adaptation – 10”
5 – Select channels :
- Car_Function_Adaptations_Gen2 > front_traffic_assist_0x41 > activated
- Car_Function_Adaptations_Gen2 > front_traffic_assist_0x41_msg_bus > terminal 15