Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Yes, the ASD gets power from both fuse "D" 20A and the ignition switch. The computer supplies trigger ground on the DkBlu/Yel wire. That relay also supplies power to the O/2 heaters. The only common thing to the fuel pump relay is that both relays feed off the same ignition switch feed (DkBlu) and the computer used the same ground trigger wire to energize them. Try grounding that DkBlu/Yel wire and see if that fires things up. If not, the problem is on the power supply end.
Here's a schematic to help you