I've got a 2006 Fabia VRS and I don't have any interior lights. I have power going into my comfort module but no power coming out of it for the power to interior lights. I powered up the wire supposed to be supplying the lights and they all came on. I'm led to believe its my comfort module that has faulted internally with maybe a relay or something inside it. I am led to believe I'd need to replace this unit and code it in via VCDS which I have but haven't coded anything in the past using it. I have heard i need to get the adaptation values or something then put them in when the new one is plugged in? If anyone can let me know if that's sort of right and for getting a replacement module is it just the 6Q1 937 049 D number i would need to match? I also plan on adding cruise control in the near future and heard i need a 6Q1 unit to do this but when i put that number in to google i get modules for vw polos etc but presume it would be cross compatible. Thanks in advance and attached is a pic of my module

 

. 

Please confirm that you have checked or replaced fuse 4 (10 Amps). 

Not sure if when you say "I have power going into..." you mean on the specific relevant wire from this fuse. It's red/green and goes in on pin 4 of the same brown 6-way connector as the feed to the lights comes out of.

Have you got standard interior light bulbs, not some LED replacements?

 

The coding is trivial if you do need to replace it, but obviously it's good to check every other possibility first.

I have checked and replaced fuse 4 as a first measure but didnt sort it so I did some more digging, got some wiring diagrams and checked the red and green wire for power and i got 12v going into the module and the red and black feed wire for the lights coming out has nothing but if I power that black and red wire coming out which should be feeding my lights they all light up as they should. Its all standard bulbs and i know the wiring to the light unit on the roof is good since powering up the feed wire lights them up so im thinking the module is faulty

Cool, well done.

There is a relay inside which could be changed, but unless you're pretty handy with soldering/de-soldering it would be trickier than a module swap.

Get one with exactly the same part number as you plan to (it doesn't really matter what car it was first used in), but before removing the old one do a scan of it with VCDS to read the coding.  You're looking for something like  "Coding: 25754" though the number may be different.

 

I might actually have a spare of that part number, I could look for if you like.

 

 

Edited 23 January, 20224 yr by Wino

Just looking at a scan i did a couple weeks back, i take it its this im looking for:

Address 09: Cent. Elect.        Labels:. 6Qx-937-049-C.lbl
   Part No: 6Q1 937 049 D
   Component: 0000 BN-SG.         1S34  
   Coding: 25742
   Shop #: WSC 13765  
   VCID: 3C341A1A2E46F2695D-50D0

No fault code found.

I have found a module on ebay for £16 so ordered that, once it arrives ill do another scan to get fresh data and ill try code it in haha, thanks for the help

Yep, that's all you should need to code in. Good price that.