Glad you got it figured out.I found the problem !!! I studied over the wiring diagram as suggested and noticed that there were two wires missing from the run/start switch. So I started looking for two missing wires. They were spliced together to the blue wire from the remote start harness. I disconnected them from the blue wire (They were shrink tubed spliced in rubber) and connected them to the terminal on the start switch and problem solved. I still have the harness in tact if I ever would need a remote start set up.
If anyone gets a MEP-831A with the wiring harness for remote start I think I can help out.
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