Intermittent to no parking assist

[AudiB720TS]

I've noticed my parking assist go from bad to worse.
At the moment it is not working at all. I pulled some codes today.
Can I assume this is a matter of just replacing the "mid left" sensor or is that guessing too much?

Wednesday,21,October,2020,13:22:54:15041
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.1.0 (x64)  HEX-V2 CB: 0.4508.4
Data version: 20200331 DS317.0
www.Ross-Tech.com


VIN: WUAZZZ8E47A801426   License Plate:


                Address 76: Park Assist       Labels: 8E0-919-283-8EC.lbl
Control Module Part Number: 8E0 919 283 E    HW: 8E0 919 283 E
  Component and/or Version: Parkhilfe 8-Kan H06 0010
           Software Coding: 0010114
            Work Shop Code: WSC 06335 000 00000
                      VCID: 323D1A96E80CCD8B95F-5184
1 Fault Found:

01546 - Sensor for Parking Aid; Rear Mid-Left (G204)
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 42
                    Reset counter: 107
                    Time Indication: 0


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Address 76: DTCs cleared
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Wednesday,21,October,2020,13:24:57:15041
VCDS Version: Release 20.4.1 (x64) Running on Windows 10 x64
www.Ross-Tech.com

                Address 76: Park Assist       Labels: 8E0-919-283-8EC.LBL
Control Module Part Number: 8E0 919 283 E    HW: 8E0 919 283 E
  Component and/or Version: Parkhilfe 8-Kan H06 0010
           Software Coding: 0010114
            Work Shop Code: WSC 06335 000 00000
                      VCID: 323D1A96E80CCD8B95F-5184
1 Fault Found:

01546 - Sensor for Parking Aid; Rear Mid-Left (G204)
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 113
                    Time Indication: 0




                Address 76: Park Assist       Labels: 8E0-919-283-8EC.LBL
Control Module Part Number: 8E0 919 283 E    HW: 8E0 919 283 E
  Component and/or Version: Parkhilfe 8-Kan H06 0010
           Software Coding: 0010114
            Work Shop Code: WSC 06335 000 00000
                      VCID: 323D1A96E80CCD8B95F-5184
1 Fault Found:

01546 - Sensor for Parking Aid; Rear Mid-Left (G204)
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 113
                    Time Indication: 0


--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


                Address 76: Park Assist       Labels: 8E0-919-283-8EC.LBL
Control Module Part Number: 8E0 919 283 E    HW: 8E0 919 283 E
  Component and/or Version: Parkhilfe 8-Kan H06 0010
           Software Coding: 0010114
            Work Shop Code: WSC 06335 000 00000
                      VCID: 323D1A96E80CCD8B95F-5184
1 Fault Found:

01546 - Sensor for Parking Aid; Rear Mid-Left (G204)
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 113
                    Time Indication: 0


--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 76: DTCs cleared

 

[Bruce]

There is not enough information to make a decision. A no signal/communication fault is indicating just that - there is no signal detected nor any communication. Could it be the sensor? It could. But it could also be wiring or something wrong with the controller for the Park assist.

If it were mine, it would be time for inspection of the possible parts.. that might include getting a wire diagram and looking at what may cause such a problem.