Electrical diagram for wiring up PFC

[Signal 2]

Originally Posted by MX722

......my commander won't actually command. Any input i put into it, nothing happens. It won't respond to any of my changes.

It doesn't sound like your problem is with the ECU connection to the engine harness. It sounds like it's the connection between the Commander and ECU.

The connection between the Commander and the ECU is pretty sensitive, and even if it looks like the plug is all the way in, it may not be. Check that first. Mine did this once and the screen was completely blank. If that ends up being your problem... I resolved it by pushing the plug down all the way and then daubing some silcone around it and not moving it until the silcone set. It's now held firm and the silicone keeps any possibility of moisture or dirt out, but I can still pull it out if I need to.

IIRC, there have also been occasional issues reported on some units from the wire leads being too short as they enter the commander display. Simple movement of the cord over time can work one or more of the wires loose from the board inside the display head, requiring some solder work.