Oldcarmechanic

As you said, after you pull the fuel pump relay you see the three openings are that parallel to each other and perpendicular to the engine. Terminal 85 is the opening farthest to the left, towards the front of truck, of the three that are perpendicular to the engine. I tried to attach a picture of the PDC from the shop manual, but I wasn't able to get the attachment to go through. Thanks for your help,

The fuel pump relay socket socket that I am talking about is in the PDC under the removeable plastic cover on the left front fender well. When you take the cover and turn it over it shows what all the relays and fuses are. The fuel pump relay is the one farthest to the left. If you pull the fuel relay out, there are three terminals next to each other toward the engine. The left terminal is #85. I would like to know what the OHMs reading is between terminal 85 and battery ground (negative terminal at the battery). The truck is a 1999 3500 doolie. Thank you for your help. --- Update to the previous post... Haven't removed and jumpered the headlight switch yet. Good idea. Thank you.

It didn't answer my question but it sure did make me laugh out loud!

Finally got back to working on my brother's 1999 24 valve turbo diesel doolie with the headlights that shut down the engine. I checked all the grounds, cleaned and reassembled. I also checked wiring of multifunction switch and headlight harness. I found G102 which I believe is the ground for the PDC located on left front fender side shield under the battery box cleaned and reassembled. Testing resistance from battery ground to G102 I get 0 Ohms. I then tested from terminal 85 of the fuel pump relay socket in the PDC to the negative of the battery and I got a value of between 62 -65 Ohms. This the ground terminal for the fuel pump relay, which connects through the relay to the ECM at terminal 86 of the fuel pump relay socket.I jumpered from terminal 30 (battery) to terminal 87 (fuel injection pump) at the fuel pump relay socket and the headlights being turned on do not kill the engine. I have installed new relay which did not help. I believe that I have too much resistance from terminal 85 to ground. I wanted to run a new ground to achieve 0 Ohms resistance but did not since I was afraid of frying some other component.If anyone has 1999 - 2002 with the VP44 pump and could check the resistance between Terminal 85 of the fuel pump socket and battery ground and let me know the Ohms reading they get it would be greatly appreciated.

I am working on my brothers 1999 Dodge doollie, 3500 extended cab with the 24 valve Cummins Turbo Diesel. When you turn the headlights on it kills the engine. The problem is sporadic and will come and go. I pull the ASD relay and the engine will run with the headlights on, after a while, maybe five minutes it will kill the engine, when you turn the headlights back on. I have replaced both the ASD and Fuel pump relays. I also have .5 amp discharge from the battery, which I tried to track down by pulling circuit fuses, one at a time. I did not find it. I believe I have a bad ground somewhere but can't find the link between killing the fuel pump (engine dies) and the headlights being turned on. Any help!