Joined: Jul 2007
Location: St. Louis
Based on what I am looking at, all wires from the wiper switch go either to the 4 pin connector or directly to the wiper coordination switch. The only wire that goes anywhere else is the orange wire from the switch, and it is the power supply for the system.
Now: you will need a test light for this, but you need to see if the blue wire from the switch to the 4 pin connector is indeed the power from the switch to the motor. Even so, it would seem there would be more than one hot lead from the wiper switch to the motor, to account for the various speeds. I would check them all in various switch postions. This will tell you what they are. Perhaps I am partially right, and the blue wire is a constant hot when the switch is in any on position (high or low).
Again, this might be the painless (pain-ass?) way to wire in a fuse to the system. If that be the case, I would think it more logical to fuse the orange wire from the blk/grn splice to the switch. However, this might cause interference with the 'park' function, causing the wipers to stall in drive. By park I mean fully down in the off postion, and by drive I mean somewhere else.
Run the switch through the test light paces; write down what you have. Then, test light again on that 4 pin connector going to to motor, it should give us a better idea.
Ultimately, I think you will need to splice that blue wire into the fuse box. Get back to me, and we'll try to figure this out!
1966 289-2V C-4 Convertible. 2nd owner, resurrected rustbucket. Factory console and power top, conversion to P/B with dual res MC.
1990 GT 25th Anniversary 5.0 AOD Convertible. SOLD