Okay, fuse 18 on my Cherokee powers the ASD relay, I traced the red/green wire and measured 11.8v with key on and 10.2 while cranking.
Fuse 19 powers the fuel pump relay. A green/black wire connects and I measured 11.8v where it connects to the relay at key on and 10.8v while cranking. At the brown wire of the fuel pump relay, I measured 11.6v at key on and 9.8 while cranking.
I measured key on and cranking voltage at all four connectors of both relays if the other measurements are important. I did have a green/white wire on the fuel pump relay and a red wire on the ASD relay that didn't show voltage at key on or cranking.
Additionally, I measured voltage at key on and cranking at all four contacts of the fuel pump plug-in(under the car at the fuel tank) and recorded no voltage.
Wednesday, April 28th, 2010 AT 7:53 PM