2017 S3 Adaptive Light Malfunction

[mlof7]

I am having an intermittent issue with my headlights. Hoping someone can help or maybe point me in the right direction. Seemingly randomly I get an adaptive light malfunction error. I can usually get the error to go away by turning the car off and back on, but sometimes it can be persistent. Occasionally, it will prevent the front turn signals from use. I can't seem to nail down a pattern on when or why it happens. I have checked all four level sensors under the car and they appear okay. I get the following error with a VCDS scan. The related fuses tested good.

1 Fault Found:

131668 - Headlight Range Control Module
U101E 00 [008] - No Communication
[Timeout Knoten 0x54 / 55 - Steuergerät für Leuchtweitenregelung]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 3
Reset counter: 102
Mileage: 72311 km
Date: 2021.12.28
Time: 10:03:34

Terminal 30 power supply: 12.6 V
Terminal 15: On


1 Fault Found:
16776970 - Databus
U1121 00 [008] - Missing Message
[LWR_AFS_01 communication error can_error_timeout]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 3
Reset counter: 103
Mileage: 72311 km
Date: 2021.12.28
Time: 10:03:31

 

[mlof7]

Adding

568086 - Databus
U1123 00 [008] - Received Error Message
[LCM links - Blinker defekt]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 4
Reset counter: 103
Mileage: 72311 km
Date: 2021.12.28
Time: 10:03:38

568342 - Databus
U1123 00 [008] - Received Error Message
[LCM rechts - Blinker defekt]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 4
Reset counter: 103
Mileage: 72311 km
Date: 2021.12.28
Time: 10:03:38

 

[AudiRace]

So check the Range Control Module it will be probably water damaged and rusty

Audi A3 Sportback (2014 - 2017) - headlight range control. > VAG ETKA Online > Nemiga.com

Parts catalogs. Spare parts catalog VAG ETKA Online. Audi. Audi A3 Sportback. (2014 - 2017). headlight range control..

nemigaparts.com

 

[NHN]

Yeah check connectors as advised, check fuse supplying the module, without checking etka normally modules in the dash, so if its corroded, I'd be concerned, so check each headlight & levelling sender's connectors for corrosion also.

 

[mlof7]

As noted, checked all fuses and all checked good. There is no interior corrosion.

 

[NHN]

Headlight connectors checked?

 

[mlof7]

They look OK but I will clean them out tonight just to be sure. Appreciate the feedback everyone.

 

[brown]

Was about to post the same issue, been getting the same problem recently, it only seems to be the indicators in the headlights that dont work, switch on and off the issue will go away but it’s seems more persistent since it got colder.

Following the thread in case OP has a fix, likewise once I get it fixed I’ll update here.

Thanks for the info on the module box, will check it out.


Sent from my iPad using Tapatalk

 

[mlof7]

Sorry but I haven't looked into this issue further yet. Will post updates if I do.