Wiring Diagram for '94 Burb Needed

[longbedder]

I've got some under-dash electrical gremlins I'm dealing with, and I need some reference material.

My diesel Suburban ('94 C2500 Silverado) will randomly stall or not start, and the guages go blank when this happens. It usually happens when theres a shock (like a road bump) or I move the column/shifter/turn signal lever. I replaced the ignition switch (common known failure item) and the problem was not solved. If I reach under the dash and wiggle wiring bundles it will temporarily fix the problem. There are Scotchlok connectors and butt splices under there from the previous owner

At any rate, I need to know which wires do what so that I can properly address the issue. Anybody have a suitable wiring diagram that they could share?

 

[zombie1969]

Here's something.If you narrow it down to a single system you want to look at it might be easier for you.Finding where the problem is is half the battle so if wiggling the wires under there makes it malfunction you should be able to find the problem.