From the looks of it, others are asking similar questions. Does MTH have wiring diagrams or something that can assist with understanding what each connector does in the new GP38-2's? I didn't want to clip the cable ties to unwrap the ball of wires but may have it to see it anything is silkscreened on the PCB. I didn't get all the instructions with the loco, so I don't know if anything along the lines of what I'm asking is included in the box? I can definitely see several of the pairs of connectors share a common wire, but since MTH doesn't use standard NMRA DCC wiring in the PS3 equipped locos, it's hard to know what each connector does?
Any suggestions would be greatly appreciated.