i'm confused trying to find the short that's blowing Q1. here's what is confusing me. with traction motor cable A2 off the motor and the other lead on negative stand off i get continuity A2 cable on both negative stand off and positive fuses fuse 5. tracing down the A2 cable i believe it's labeled TA-2 on the FU-5 FUSE. I get i should have continuity on fuse 5 but why negative ? would be nice to have a wiring diagram.