ECM problem

Can you guide me as to what to do next? Find the right hand firewall connection and do what? Then what do you think? Replace the key amplifier?

Do you think the ecm itself is still good? Where is the amplifier located what does it look like. What is the theory of operation?

So the one with 8.1 ohms is the problem? Look under the dash or under the hood?

What are the 2 red arrows pointing to? The connections are labeled what numbers? I noticed a connection under the hood near the air cleaner box which is bolted to the side of the van (inner fender) and grounded.

OK, I will let you know what I find out. I will just find the wire and see why it has so much resistance to ground.

I found the ground(earth). It is the upper right corner by the air cleaner box. I unbolted the wire from the fender and read from the data link connector to the terminal where the three wires meet and the brown one seems to have continuity but high resistance. here are some photos to help us out............

Any ideas what to do with the brown wire?

Why is the data link brown/white wire making continuity to the brown wire? I guess I will have to uncover all the wiring from the data link caonnector to the firewall ground then and see why it has high resistance. Maybe the key amplifier is bad causing high resistance. Where is the key amplifier located?

2 car pro jack, what do you guys mean by getting a mitchell sub. Do you mean a mitchel subsription because I got one for the online manuals someone suggested before.

Well, I took the brown and white wire on the back of the data link connection and soldered a same size if not slightley larger wire to it and grounded it out permanently. The van starts up and runs perfectly and the new spliced in wire does not get hot at all or too warm so that I cannot touch it at all. So by me grounding that brown/white wire the van is fine. I looked at my ignition switch and the mitchell manual and according to where the mitchel manual says that the key transponder is my van does not have one. I double checked and iit does not have a key transponder. So, what did I do by grounding out the brown/white wire? That is the question now. I still want to know

I dont know what you mean by terminate the chassis earth. All I did was solder in a brown wire to the back of the data link connector and ground it because the loom is buried behind the dash.