yay 6 Posted July 8, 2022 Share Posted July 8, 2022 Hi, I have an error message " Vehicle lights malfunction" on the dash. I have checked, and all the lights appear to be working, no bulbs/leds appear unlit. A scan with OBD11 reveals the following faults: The faults cannot be cancelled. Any thoughts on what might be causing this? Thanks Quote Link to comment Share on other sites More sharing options...
Magnet Posted July 9, 2022 Share Posted July 9, 2022 Hello Denzil, ’….al lights checked…’ Some brake light assemblies can have twin bulbs, which lead owners to believe the brake lights are working - which indeed they may be -but not to a uniform degree of brightness. If this isn’t the source of your particular issue? Worth checking earths and connectors. Perhaps you could let us know how you get on. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
yay 6 Posted July 11, 2022 Author Share Posted July 11, 2022 On 7/9/2022 at 7:34 PM, Magnet said: Hello Denzil, ’….al lights checked…’ Some brake light assemblies can have twin bulbs, which lead owners to believe the brake lights are working - which indeed they may be -but not to a uniform degree of brightness. If this isn’t the source of your particular issue? Worth checking earths and connectors. Perhaps you could let us know how you get on. Kind regards, Gareth. Checked the brightness, and all seems ok. All wires seem ok with no obvious signs of fraying, so it looks like a trip to the auto electrician is next. Tha nks for your help/ Quote Link to comment Share on other sites More sharing options...
Magnet Posted July 11, 2022 Share Posted July 11, 2022 Have you actually removed the back light bulb holders and physically checked both brake light bulbs (if two) are working? Quote Link to comment Share on other sites More sharing options...
yay 6 Posted July 11, 2022 Author Share Posted July 11, 2022 No, looking at it this evening, there is a rubber grommet with a bunch of wires ( in black tape) emerging from it. This is from the rear of the light unit which is part of the rear fender. I was not quite sure if I should try to undo it. Then there is the other part of the light unit which is part of the boot lid. I will take photos and post tomorrow. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted July 12, 2022 Share Posted July 12, 2022 Could it be an issue with the switch or ballast boxes in the headlights? Quote Link to comment Share on other sites More sharing options...
yay 6 Posted July 14, 2022 Author Share Posted July 14, 2022 A little more information on the problem: The light selector switch and the indications around it do not light up but all the other switches do. Further, the headlights and taillights turn on, even in daylight, irrespective of the position of the light selector switch. If the switch is in the "Auto" position, and the door is opened with the ignition turned off, the buzzer goes off until the selector is turned to the off position. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted July 14, 2022 Share Posted July 14, 2022 I'd look to change the switch as a starting point. Quote Link to comment Share on other sites More sharing options...
yay 6 Posted July 18, 2022 Author Share Posted July 18, 2022 Ok, will order one and post the result Quote Link to comment Share on other sites More sharing options...
yay 6 Posted July 18, 2022 Author Share Posted July 18, 2022 ....and now, my wife's car, a C7 sedan 2012 2.8fsi. High beam does not work, either in flash mode or full high beam. The blue indicator light on the dash comes on when the stalk is pulled. A scan with OBD11 came up with the message "open circuit". I erased the message, but the high beam still does not work. Quote Link to comment Share on other sites More sharing options...
kg27 Posted October 12, 2023 Share Posted October 12, 2023 hello im having exact same problem did you find out what was the problem cheers kevin Quote Link to comment Share on other sites More sharing options...
Mercmanexs Posted November 1, 2023 Share Posted November 1, 2023 On 10/12/2023 at 4:35 PM, kg27 said: hello im having exact same problem did you find out what was the problem cheers kevin I started having this issue. Any luck resolving it? Quote Link to comment Share on other sites More sharing options...
yay 6 Posted November 1, 2023 Author Share Posted November 1, 2023 Unfortunately I could not fix the issue myself. A trip to the auto electrician, $$$ and mumjo-jumbo explanation later, the lights are now functioning. Something about the signal from the stalk not being recognised and thus a circuit board or two needing to be replaced. 1 Quote Link to comment Share on other sites More sharing options...
Mercmanexs Posted November 2, 2023 Share Posted November 2, 2023 Thanks for the response. This is the only forum that had a reference to this error. I let the car sit outside uncovered. I think leaves blocked the windscreen drains causing water to get behind the dash. Quote Link to comment Share on other sites More sharing options...
Tim2014A6 Posted November 29, 2023 Share Posted November 29, 2023 Did the A6 switch replacement fix light malfunction issue? Have same exact issue...including no indicator light on headlight switch. I replaced switch with no change to symptoms. May have to find electrical diagrams and trace... Quote Link to comment Share on other sites More sharing options...
yay 6 Posted December 6, 2023 Author Share Posted December 6, 2023 On 11/30/2023 at 10:22 AM, Tim2014A6 said: Did the A6 switch replacement fix light malfunction issue? Have same exact issue...including no indicator light on headlight switch. I replaced switch with no change to symptoms. May have to find electrical diagrams and trace... Yes, it did. Quote Link to comment Share on other sites More sharing options...
Green November Posted March 28 Share Posted March 28 Hi @yay 6 please where did you order your switch from? I have the same problem with my A4 and this electricians have taken cash from me with no solution yet. Quote Link to comment Share on other sites More sharing options...
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