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Anyway, I have problem with self-leveling of AFS headlighs.
When I switch on xenon headlights, they do not perform self-leveling procedure, like they always did before.
There are no DTC, no blown fuses, headlights works ok during adaptation procedure on VCDS (projectors go down, up, left, right, spread and center focus and follow steering wheel) but there is no self-leveling procedure when I turn the lights on.
Fuse for headlight washers was out, creating constant DTC which was annoying to me, so I coded headlights to option 4 in central electrics and “maybe” (not sure) coded something else somewhere on gateway in order to have it properly coded out, but I can’t recall for sure what was that second step or even that second step had really happened. If it did happened, I simply can’t figure it out what was it related to and I was looking for two days on entire gateway what else “might be” additionally coded out, with no success.
Meanwhile, I put back the headlight washer fuse, disconnect and plugged the pump hoses to stop it spraying over the hood, coded back to AFS headlights with washer system (option 3), but something is missing out and I can't figure it out what.
When this fault code is flagged, it is important to check other control modules for fault codes. Different slave modules for different systems may be on the same bus (wire), thus one failed item causes several other items no longer perform to factory design.
Your software coding seems correct, since I also have Bi-Xenon and have the same coding:
Address 55: Headlight Range Labels: 4F0-910-357.lbl
Part No SW: 4F0 910 357 A HW: 4F0 907 357 A
Component: AFS 1 H03 0010
Revision: 00000001 Serial number:
Coding: 0000016
Subsystem 1 - Part No: 4F0 941 329 A
Component: AFS-Modul links H05 0010
Subsystem 2 - Part No: 4F0 941 329 A
Component: AFS-Modul rechtsH05 0010
No fault code found.
Do you have any other faults? It seems like one bad component can drag down things downstream as indicated in the Ross-Tech Wiki page linked.
No other DTC. Just have one sound beep on dash after DTC erase, defective adaptive light lamp comes on after 2 min of driving and goes off. Self leveling works now, but I think cornering does not any more. It was vice versa before.
I think I know the suspect here, this might be the right side headlight wiring below the projector. Someone has been there before...
Funny thing is, projectors are not dipped down, neither one.
No other DTC. Just have one sound beep on dash after DTC erase, defective adaptive light lamp comes on after 2 min of driving and goes off. Self leveling works now, but I think cornering does not any more. It was vice versa before.
I think I know the suspect here, this might be the right side headlight wiring below the projector. Someone has been there before...
Sounds like you are on it. Could be a short on the comm line and the module cannot address the headlights.
Well, just stripped the right headlight. Connector wires before headlight looks ok.
Problem is, wires that I'm able to observe visually inside the headlight looks brand new, so I've hit the wall here.
Yeah, those wires look pristine. What led you to believe someone had fiddled with it before?
So when you do a full scan that is the ONLY fault in the entire system? I mean, I get like a fault in my XM radio cause I don't have it activated (obviously causes no issues with the system as the MOST loop is still active).
I ask because a lot of the wiki points fingers at other controllers possibly getting in the way of communication.
First, thank you for your time.
I see that headligh was opened before, but on left headlight someone had cut off bottom portion to access the wirings (my mistake).
This is the only DTC in electrical compartment, tho I have 2 DTC for B1 and B2 O2 sensors (intermittently). Something like short to ground, etc. Don’t have access to VCDS to confirm exact DTC.
MOST is ok, I took a test many times..
First, thank you for your time.
I see that headligh was opened before, but on left headlight someone had cut off bottom portion to access the wirings (my mistake).
This is the only DTC in electrical compartment, tho I have 2 DTC for B1 and B2 O2 sensors (intermittently). Something like short to ground, etc. Don’t have access to VCDS to confirm exact DTC.
MOST is ok, I took a test many times..
MOST would have nothing to do with this, I was just using it as an example of needing to have the full circuit for it to function correctly.
If you don't have access to VCDS, how did you post the earlier scan results?
I don't think the O2 sensors would be on the same circuit as the headlights, but shorts can cause havoc in a system. Try and get a full scan done wherever you got the original results and see anything else that is acting up.
I have VCDS, just my hands was dirty at that moment to work with laptop and I was in the middle of job installing bumper and headlights.
There are no electrical DTC except this one 100%, but I’ll double check again. There was none few days before.
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AFS headlight self-leveling issue
