HELP ! Need location of convenience control module in 2002 A4 tdi Quattro please? Windows/mirrors/light failed??

[b6tdiquattro]

Hi all,

Wonder if any of you Audi gods can help me please.

Having spent hours doing a search I think the "convenience control module" is at fault.

Symptons:
Electric windows dont work on any switch

Interior light stays on in door position

Electric mirrors not working

No illumination on the drivers control panel switches

When arming the locks theres no flash from the indicators

Can hear a very faint whirring clicky type noise from behind the dash

All other window buttons illuminated

UPDATE: VAG-COM Gives following code 01331 - Door Control Module: Driver Side (J386)
49-00 - No Communications

Anyone had these symptons before?

Where is the control module located and what does it look like?

I have VAG-COM is there anything I can do to check it?

How much is a new control module and do you think I could fit it myself, I understand I may have to re-code the keys (I will have a read up on that later)

Any advice would be greatly appreciated

[Crasher]

Under the carpet on the left hand front floor.

[b6tdiquattro]

Under the carpet on the left hand front floor.

Thanks crasher, much appreciated.

[b6tdiquattro]

Just back from up North and plugged it into vag-com.

One of the codes I got was as below, is this typical of the "CONVENIENCE MODULE" failure or could it just be the actual switch unit on drivers side?

01331 - Door Control Module: Driver Side (J386)
49-00 - No Communications

[b6tdiquattro]

Just posting bits of info as I find them so at least it will help someone doing a search in the future Feel free to post suggestions or I dont mind talking to myself like a crazy person

Output on
printer V.A.G
1551
Possible causes of fault Fault remedy

01331
Door control
unit, driver's
side -J386
No
communication
- Data bus wiring damaged or open circuit
- -J386 defective
- Fault finding according to current flow diagram
=> Current Flow Diagrams, Electrical Fault-
Finding and Fitting Locations

Replace -J386

[Spr0cket]

Could be any number of items in the controil flow - but I'd go through following sequence in order:

• Wiring loom - check carefully between A pillar and door as wire breakage can occur here - and could induce the sort of multiple issue you report
• Door control module - removal of door trim and access is not too bad - but not sure how one can trouble shoot this without a substitute part. I believe the control to be built into the window motor assembly - somone correct me if I'm wrong as I'm only recalling what I though I had observed in some of the current flow diagrams. If this is indeed the case - it might be possible to swap driver / passenger door items - simply as a test rig to eliminate components in trouble shooting steps?
• Convenience module - access not too bad though some trim to play with - but same as door module - how to test without substitute. You could visually inspect at least as some isolated cases of water damage have been observed through water penetration at bulkhead

There may be other suggestions on the best order to proceed - but I'd go this way given symtpoms, ease of elimination and ptobable causes.

[b6tdiquattro]

All sorted now yipeeeee

Thanks Spr0cket for the guide and suggestions, really appreciated !!

Just to update:

2 wires in the loom beween the door and car had broken off so spent most part of the day re-wiring it back up, all is good for now...Its the wifes car I have always been a Jap man personally, has restored my faith in the Germans !

Again thanks for all your help and taking the time to write that mini guide for me sprocket your a star cheers...

[Spr0cket]

Glad I could help - and congrats on getting it resolved