Speedometer Sensor

Max Hoepli mhoepli at vif.com
Mon Sep 19 19:13:49 PDT 2011

Fuse 13 is also for Fuel pump motor, warm up valve according to my list.





From: Tony Hoffman [mailto:auditony at gmail.com] 
Sent: Monday, September 19, 2011 21:20
To: Max Hoepli
Cc: quattro at audifans.com
Subject: Re: Speedometer Sensor


There should not be ground there. It should have power, which comes from
fuse 13. Check the fuse, from there it goes through the fusebox to B15a,
terminal on the fusebox. Then, onto a common point that branches off in teh
harness. and onto the sender.


HTH, and let us know what you find.


On Thu, Sep 15, 2011 at 1:31 PM, Max Hoepli <mhoepli at vif.com> wrote:

Hi all,

For the speed sensor on the left side of the transmission:

Prong 1-dark blue wire has continuity with ground: Power supply

Prong 2-yellow wire does not have continuity with ground: Output to

Prong 3-brown wire has continuity with ground: ground.

Should there be continuity with ground by prong 1?

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