Fabia MKIII Interior Lighting & Side Lights Not Working

[benjos96]

Hi All, my interior lights (roof lights/reading lights front and rear, boot light) have stopped working completely. Not just on door opening, but even when manually turned on.

 

Seems the side lights aren’t working either.

 

- Have checked the fuse (fuse 6), seems fine (even swapped it just incase)

- Ran my ODB scanner - no faults found.

 

Any ideas would be appreciated! Thanks.

[4442rich]

Evening, I have this same issue. Did you sort it? I have my suspicions as to the cause.

 

Chris

[benjos96]

1 minute ago, 4442rich said:

Evening, I have this same issue. Did you sort it? I have my suspicions as to the cause.

 

Chris

Sadly not, have yet to get it looked at and ran out of ideas! What are your suspicions?

[4442rich]

The control module I reckon. It's a circuit board behind the cabin fuse board. I mean it could be a faulty wire but I reckon that's unlikely on a 4 y/o 20k mile car.

[4442rich]

On 02/10/2023 at 21:45, benjos96 said:

Sadly not, have yet to get it looked at and ran out of ideas! What are your suspicions?

Benjos96, I disconnected the battery and then disconnected and reconnected the BCU (situated in the driver's footwell behind the interior fusebox) as I had planed to swap out/examine the BCU. There are 3x sockets that connects it to the vehicle but otherwise it pops out. Oddly, my interior lights are now reinstated without any further work. No sign of any water ingress and the electrical connectors are a good solid fit. Doing the same may help you, even if it just drains power from the BCU for a short time.