No speedo working on two different clusters

[UrS4boy]

Did you change your gearbox recently?

This happened locally to one of the Vancouver area UrS owners after he had the clutch replaced on his 94 UrS4. The shop failed to plug the G22 VSS connector cable back into the sensor.

[Mikes2]

An aftermarket radio can do this. speed signal wire pulled to earth by the radio will stop the speedo working

[domas]

Not a huge help but the system is simple, consists of 4 things. BTDT
Speedometer/instrument panel - cold joints inside, but if you have tried 2 that should be ruled out. I have resoldered my numerous of times. The speedo needle was still jumping after a very long drive.
Changed magnetic ring on the drivers side inner cv axles flange, did not help
Changed sensor, that is over the mentioned flange, finally did help
And then there is wiring, but for some reason i do not believe it is faulty

Did you change your gearbox recently?

[UrS4boy]

G22 Vehicle Speed Sensor (VSS) 012409191D Info - What it is and where the signal goes

Your G22 012409191D sender might be borked, needing a new, relatively in expensive replacement.

G22 Vehicle Speed Sensor (VSS) 012409191D Info - What it is and where the signal goes:

http://forums.quattroworld.com/s4s6/msgs/168463.phtml

3B S2 G22 to G21 wiring diagram:

[stocious]

I know this has probably been discussed a thousand times over, but I just can figure out why my speedo won't work, I tried all the simple things like checking and spraying with contact spray the connection at the gearbox, plus the cluster connections, can someone tell me what colour wire on the blue cluster plug is the power/signal for the speedo?

It's a complete nest of wires down there