46 RH Output Speed Sensor Wiring

[RogerRamRod]

I am going with aftermarket gauges and would like to use the 2-wire speed sensor connector to trigger the speedometer.
Can you tell me if the connection is ground and signal, or voltage and signal? I don’t really want to destroy a new speedometer.
I bought a aftermarket 2-wire plug that fits with black & white wires.
In the close-up photo, the white wire would be on the left and the black wire on the right.

 

[TT5.9mag]

That’s a VR sensor and produces an AC sign wave signal.

 

[RogerRamRod]

Thank you. So if AC, it doesn’t matter?
This is the AutoMeter diagram. The “hi” side they are showing is connected to the speedometer “signal” connection.

 

[RogerRamRod]

I can assume white is signal and black is ground and should be OK?

 

[TT5.9mag]

I think that’s a safe assumption.


https://www.autometer.com/pub/media/manual/2650-1955.pdf

 

[RogerRamRod]

Thank you again,