83 electric club car wont run

[MAD-DOG]

MY wife brought home a 83 CC and its in nice shape , it went forward somewhat but hardly had reverse ..MY neighbor thought bhe new the problem we tested the 5 solenoids from right to left .first three had continuity the last two did'nt ..he moved the heavy gauge wire from number 5 to number 3 and when we hit the pedal it moved great forward and reverse. now its dead ..when I check for continuity its got nothing ...I did look at the wiring diagrams but I need to know what the polarity of the wires are so I can see whats going on ..THinking about buying 5 new solenoids ..whats the trouble shooting from scratch . I need to get it running for my daughters B-Day HELP

THanks Matinwi