No Voltage Indication

[Mark P.]

My voltage indication is showing 0.0 and I'm not sure why. I'm not sure where the HDX would measure that from-I assumed just from the power wires but is there another wire I'm suppose to connect up somewhere that is used to measure voltage that perhaps I missed?

Thank you in advance!

 

[dynonsupport]

This voltage comes of pin 1 on the EMS. It is not the voltage the screen is getting.

 

[Dynon]

It's EMS module pin one or two, so it needs to be connected explicitly. Check in your pin mapping under ems setup to see where it thinks it's connected, and then check and see if you have a wire from that pin measuring voltage.

 

[Mark P.]

I've checked my EMS wiring and the red wire is not connected to anything. If the red wire is for voltage, where does it connect to? I've looked at the HDX D37 pin layout and it doesn't look like it connects to the D37.

The EMS itself is powered by the cable that plugs into the EFIS correct? I'm not sure where to connect the red wire.

 

[Raymo]

Pin 1 on the EMS D37 connector goes to a your main bus. It should be protected by a fuse or breaker, of course.

 

[Mark P.]

Ah that's what I was just thinking! Thanks for the reply.