OP
Rollcenter
Bronze Member
With key on, check voltage at the "I" terminal of the switch (red wire with white stripe). It should be same voltage as power into the switch on the solid red wire. If no voltage or you see a drop in voltage, then suspect switch problem. This circuit supplies power to the fuse panel, then to the OCU, & Switched Power relay through Red w/blu stripe wires, and from switched power relay to the dash on red w/blk wire.
All of the components (OCU, relays, dash panel, & timer control) all have smaller black ground wires going to frame. Be sure to check any or all of these to see if ground connection is loose somewhere.
I will certainly check that.
Does that explain the horn not working since this happened? Should I be able to "jump" across on the switch the incoming hot to other wires and at least see if I can get engine to turn over?