IPA rear axle coding issue... any advice?

Error Codes
1

Hello, I’m retrofitting an IPA (Intelligent Park Assist 7X5 + FT3) and replaced the button on the console for the parking function. I’ve successfully completed most of the necessary codings, but I’m stuck on one: making PLA/IPA active on the CB ‘Rear Axle Steering’ control module. When I attempt to change this coding to active, OBDEleven throws an error and rejects the coding. I briefly see ‘Steering malfunction! Adapt driving style. Larger turning radius’ on the dashboard, but it disappears quickly. No errors are recorded in the CB control module, and the PLA/IPA remains inactive. Without this coding, when I press the parking button, the car tries to steer but immediately displays ‘Parking pilot ended,’ and the button lights up red. Maneuver Assist works fine (steering and braking).

For reference, my car has PR codes: 9X0 Parking Aid Plus with 360° display, КА6 360-degree cameras, GJ0 Without Traffic Jam Assist, FT0 Without Parking Assistance, and 8T2 Cruise Control System (NO ACC!).

Here are the codings and adaptations I’ve made:

  • [09 - Central Electrics] (Long coding): Pilot_switch → installed, autonomic_parking_system → installed, OPS → installed, PLA → installed.
  • [44 - Steering Assistance] (Long coding): Parallel parking assistance → active, Activated_variant_of_park_assistant → Trailer_assist_with_park_steering_assistant, Activated_variant_of_park_steering_assistant → Generation 2.
  • [46 - Comfort System] (Long coding): central_locking_system_piloted_parking → active, turn_indicator_piloted_parking → active, parking_prozess_piloted_parking → active.
  • [A5 - Driver Assistance] (Long coding): FW_Interface_Parking_button → active, IPA_intelligent_parking_assist → installed, IPA_curb_lifter → active, EDR_event_data_recorder → installed.
  • [A5 - Driver Assistance] (Adaptation): Visual display for park assist → with OPS 360.

What can I do to overcome this problem?

2

Sounds frustrating! Have you double-checked all your codings? Sometimes a small detail can cause issues. Also, make sure the rear axle steering is compatible with the IPA system.

3

I’ve read that sometimes the coding can be sensitive to certain configurations. Maybe try resetting the modules and then reapplying the codings.

4

Did you check if there are firmware updates for your modules? That might help resolve the issue with the coding.

5

I had a similar issue when retrofitting features. Sometimes, you might need to perform a guided calibration or adaptation in the VAG tool to get everything to register.

6

You could also look for specific forums dedicated to Audi coding. There might be others who faced the same issue and found a solution!