Hi would appreciate some help trying to fix an issue that has been about in my partners car for a long time, the interior light doesn’t go on when the door is opened, or when the car is stopped, or unlocked. It does work on the overhead switch set to the on position, just not on the door setting in the middle of the 3 way rocker.
As it’s not the bulbs, i thought it was the switch, so I have a b8 a4 myself and swapped the overhead light panel, but this didn’t fix it.
Next up I had a thought it may be the door open trigger, but this shows on the display for both doors, and then thinking about it from my vehicle it does work on unlocking and also whenstopping and removing the key.
I’ve had a shot of a vcds cable, with no relevant errors I can see, but not sure if there is any further tests I can runwith that.
I can’t remember them ever working, the car had the mmi headunit out for months as It had failed on an update, and took a long time to send it off to get fixed, so I thought it was related to that missing, but can’t really remember if they worked before? Now the mmi is back and working and the lights aren’t fully I doubt it! The only other thing I’ve added is ambient lighting, not sure if this would affect it?
I’m guessing the overhead lights aren’t getting a signal from the trigger wire, unsure if it’s canbus or not? Possibly from the j519 if that controls it? I don’t have any wiring diagrams, so anyone with any knowledge or links to them would be hugely appreciated, and any explanations would be great too. I’ve double checked every fuse I can find, but was thinking it should be ok as the light works in the on position, if it’s not on a different fused circuit? If anyone else has had similar issues I’d appreciate any ideas, as I’ve tried as much as I can with my own ideas, but stuck now! Thanks in advance.
As it’s not the bulbs, i thought it was the switch, so I have a b8 a4 myself and swapped the overhead light panel, but this didn’t fix it.
Next up I had a thought it may be the door open trigger, but this shows on the display for both doors, and then thinking about it from my vehicle it does work on unlocking and also whenstopping and removing the key.
I’ve had a shot of a vcds cable, with no relevant errors I can see, but not sure if there is any further tests I can runwith that.
I can’t remember them ever working, the car had the mmi headunit out for months as It had failed on an update, and took a long time to send it off to get fixed, so I thought it was related to that missing, but can’t really remember if they worked before? Now the mmi is back and working and the lights aren’t fully I doubt it! The only other thing I’ve added is ambient lighting, not sure if this would affect it?
I’m guessing the overhead lights aren’t getting a signal from the trigger wire, unsure if it’s canbus or not? Possibly from the j519 if that controls it? I don’t have any wiring diagrams, so anyone with any knowledge or links to them would be hugely appreciated, and any explanations would be great too. I’ve double checked every fuse I can find, but was thinking it should be ok as the light works in the on position, if it’s not on a different fused circuit? If anyone else has had similar issues I’d appreciate any ideas, as I’ve tried as much as I can with my own ideas, but stuck now! Thanks in advance.