Speed Signal E36 M3

[ChrisRally]

I know the sensor is in the diff, and that a speed signal is shared between the Inst cluster and Trip / Wiper Module / Radio etc. I assume this shared signal is not the one from the diff sensor, as I cannot see a connection on the diagram, but then I cannot find where the signal from the diff sensor goes to. As the loom was cut up long ago I cannot trace it.

Does anyone know where this goes to ?

I am not using any original ECUs and would just like to get the speedo working, I think I can get the tacho working now (Input signal from ECU to Inst Cluster on A20) and the warning lights I need.

Thanks

[M3 Compact]

I think it's pin 4 on the X27 (12-pin black) cluster plug.

[ChrisRally]

Thanks M3C,

I assume the other wire is just to +12V ?

[ChrisRally]

Another look at the diagram shows the sensor connected between C3 and C4. I originally asumed this signal was from one of the ECUs.

I'll get it wired today hopefully, although doubt I can spin the wheels fast enough to get a reading for testing.