[s-cars] Need URS4 wiring diagram/help

[Tom Green]

Shayne,

I doubt there are any updates for the wiring diagrams since there  
haven't  been
any Audi updates for the system.  Your  Bentley repair manual is  
probably a lot
newer than '92 as well.

The repair manual divides the wiring diagrams into systems.  There  
are separate
diagrams for each system that controls the electric fan.  Look for  
the afterrun
circuit for more diagrams. The A/C system also controls the electric  
fan and has a
separate diagram.  There are also diagrams showing the control panels  
where the
controls identified in the wiring diagrams are located.


If you mean the cooling fan never quits running on low speed until  
the battery runs
down, even with the ignition off, then the afterrun relay in the  
passenger kick panel
that Jack points to is indeed the culprit.  It is designed to shut  
off after 5 minutes of
fan/pump running if the afterrun is activated after shutdown.  When  
the contacts are
stuck closed on this holding relay, the system remains activated.

If these are not your symptoms, check another diagram.

Has anyone experienced this before?  Yes, and they were all as  
frustrated as you
trying to understand how this system works.

Tom  '95 S6
           '95.5 S6 avant



Original messages:
> Date: Sat, 14 Oct 2006 23:54:39 -0400
> From: "Jack Gagnon" <bullitt at gwi.net>
> Subject: Re: [s-cars] Need urS4 wiring Diagram/Help
> To: "quattro + 5 or 8 = fun" <thequattroking at yahoo.com>,
> 	<s-car-list at audifans.com>
> Message-ID: <GHEJJEIJNBDMAIDDEMMLIELFCHAA.bullitt at gwi.net>
> Content-Type: text/plain;	charset="us-ascii"
>
> Shayne,
>
>
> I recently had this problem.  I replaced the relay located at the  
> passeger's
> side kick panel and all is well.
>
> Jack G
>
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com]On Behalf Of quattro + 5 or  
> 8 =
> fun
> Sent: Saturday, October 14, 2006 2:36 PM
> To: s-car-list at audifans.com
> Subject: [s-cars] Need urS4 wiring Diagram/Help
>
>
> Does anyone have an UPDATED version of the '92 urS4 wiring diagram  
> for the
> fan/cooling electrics?  The one in my Bentley is wrong.  On that  
> note, the
> cooling fan never quits.  It stays on all the time.  Anyone  
> experience this
> before?  I checked all the sensors that would trigger the fan to  
> run that I
> could find via this pathetic diagram.
>
>
> Shayne