Hi guys!

I have some issues with my BCM or with my car should I say.. I've got a Vehicle Lighting fault. Checked every single thing that has some relation to lighting with my car and I am just desperate for a solution right now because the yellow triangle is just too annoying.

Start car > Vehicle Lighting fault > Scan car with OBD11 > Triangle disappears > Scan done > Triangle appears again.

No error code nothing :(

2013 Octavia vRS with the 2.0 TSI.

BCM Hardware number: 5Q0937084AA

BCM Software number: 5Q0937084AA

BCM Software version: 0112

BCM Hardware version: H14

I saw that there is a possibility to get this updated to 0137? A help into the right direction would be appreciated!

Which Part of light have the Error?

Nothing specific. All lights work perfectly fine, no error codes regarding to lighting other than "Fault: Vehicle lighting". Whenever I try to read codes, the error disappears, and after codereading is done it reappears.

Which Radio System you have? HW Version? SW Version? SW Number of Version?

Partnumber: 5E0035043A
Hardwarenumber: H41
Softwarenumber: 0196

You need a Update from the Radio

Alright, downloading it right now! Will update you after it's done.

IT IS Possible, that the Radio Update is the solution nur No warrenty from me.

Ist the Error after Radio Update, Flash BCM

No worries. Anything to try to make this error go away is helpful.

I haven't added anything to the car electrically other than a Carplay box so it might for sure be the radio. Fingers crossed

Ist the Error without this Box?

Error still remains unfortunately.

Which SW you installed in the Radio?

I got MHIG_EU_SK_P0346 right now. Downloading K1552 as we speak

Is the Error Directly after Start the Car?

Yes it directly happens. I can take a video of it tomorrow

Edited 11 November, 202511 Nov by YellowOcto

Why you Dont say that?

Check the voltage with the multimeter Directly when a second Person Start the Car

Okay! I Will also do that

Took a video of what the fault looks like. This is BEFORE starting the car: https://youtube.com/shorts/ZLvl2A5Ug7Q?si=dHGJSu8m5Alnt_8t

Updated the radio to the newest firmware and that didn’t fix the problem unfortunately.

How High is the voltage

Through OBDeleven i read the voltage on 12.2v and its going up whenever I start the car.

Took the apple carplaybox out of the car and tried it again like that and no luck. So it's just a random ghost error which disappears whenever I read faults on the BCM. Maybe I should check all headlight connectors but it did not specify which light so I'm just gonna try and live with this..