Power window harness question(s)

[OLDIRON69]

I have an 81 Blazer that has p/w and p/l-
Q-Is the Truck p/w and p/l harness the same?
Q-Is the rear window harness part of the p/w and p/l harness?

Also is there more than one motor in the rear gate for the window? It looks to be anothe rmotor in there. I have not been able to tear into it yet...Just none of it works. The rear window tried to make a noise the other day, then nothing. I took the harness out from under the dash to find the PO had cut and spliced all the wires right before the relay, I guess it is a relay..right by the pedal that it plugs into?