I recently swapped trannys on my 99 Forester.

The original tranny / vehicle had a 3 wire pickup.

 

The scrap yard tranny now in the vehicle came with a 2 wire pickup.

I am not sure what vehicle it came from. Someone else found it for me.

Works fine except for no speedometer.

 

The 2 wire pickup has a drive link that resembles a flat screw driver blade.

The 3 wire has a allen head link.

The 2 wire puts out an ac voltage when spun. Magnetic pickup I assume.

Lead to lead resistance is about 3-4 ohms on an old analog ohm meter. (all I had at the time.)

The 3 wire resistance readings are higher. Can't recall exactly.

 

2 wire is self power, mag pickup?

3 wire is an active device requiring 5 or 12 vdc to energize?

Can I McGuiver an interface circuit to use the 2 wire sensor on the 3 wire ecm module input? other options?

This is not a crisis but the wife drives the car for work and get paid mileage and she is not happy. go figure.

tnx

r

Can you pull and swap the two sensors, or is the connection inside the transmission preventing you from doing that?