[Dave at Pelican Parts]

The AAR is powered by the fuel pump wire. So any time the pump is running, the AAR should be powered. With D-jet, that means you should see +12V for about 1.5 seconds when the key goes from "off" to "on", and then again when the starter is cranking, and again while the engine is turning over more than ~150 RPM.

If the fuel pump circuitry is not stock, the AAR may be powered while the key is on, or never powered, or maybe something else--depends on how things were wired.

--DD