[b3lha]

I think the JDM (diff) sensor and Aussie/Euro (internal) sensor produce different types of signals. Perhaps, being driven by different gears, they produce a different number of pulses per revolution - or perhaps one is a square wave and one is a sine wave. I don't know for sure. There must be a reason why Subaru wired them differently.

I assume that the JDM sensor is the same as the USA sensor described in my book: 5v square wave, 4 pulses per revolution of the sensor. Maybe Harvey's book explains the signal of the Aussie/Euro sensor.