Steve,
I swapped the 3 wires (202 ignition ECU,233 ignition power air dryer, 265 ignition power VIM relay) on CB22 with the 1 wire (223) on CB 27 (overhead fan). Turned key to ACC and turned the fan on for the load. Fan operated O.K. and there was no clicking on CB22. Started the engine and CB27 started clicking just like before. Yesterday one of those three wires (#233) showed signal back to the air dryer when I attached the signal generator so I unplugged the dryer at the rear where it connects to the dryer just to check that out and it made no difference. Still got the clicking when the engine was started.
These are the results of the various readings:
1. Ignition switch off- Fuse #1=12.9v, Fuse #2=0, VIM terminal J=13.00v, VIM terminal R=13.0v
2. Ignition switch turned to ACC- Fuse #1=12.5v, Fuse #2=12.5v, VIM terminal B=12.5v, VIM terminal C=12.5v,
VIM terminal J=12.35v, VIM terminal P=11.41v, VIM terminal R=11.95v, VIM terminal S=12.25v.
3. Engine running- Fuse #1=12.98v continuously regardless of clicking, Fuse #2 toggled back and forth every 6-10 seconds between 12.74v and 6.9v, VIM terminal B=13.23v, VIM terminal C toggled between 12.73v and 6.9v, VIM terminal J= 13.12 continuously, VIM terminal P=12.29 continuously, VIM terminal R=13.1v continuously, VIM terminal S toggled between 6.96v and 12.74v,
4. CB22 also toggled between 6.96v and 12.79v on ACC and while engine was running.
I also noticed that I could feel all 6 relays inside the VIM click once each time as the VIM powers up. I have moved those 6 relays around and changed their position inside the VIM but have not noticed any change in the overall situation. I am assuming they are all good but I guess it's possible but not probable they are all bad.
Once again I'm not sure what these numbers mean, but at least the engine does start now. I started it 5 or 6 times today with no problems. I'm going to attempt to trace wire #265 (power to VIM relay) upwards towards where I lost it yesterday. It's a real "rats nest" up there with absolutely no room to work. Looked briefly at trying to remove the entire transmission console to provide better access but not sure if that is even possible.
Tom