I'm installing new Livorsi controls for single engine with trim button in the stick. Do you need to use a diode?

For the trim swich ...... ????????

I was installing the controls and a buddy said he thinks you have to run a diode in the line. It didn't sound right to me so I thought I would ask. Besides, if it was needed I figured Livorsi would have supplied it.

for the drive trim, no.
for tabs, yes.

Got it. But just curious why the tabs would need it and not the trim?

If the control switch is a single switch,(1 switch used for both tabs) diodes will allow the 2 factory separate dash switches to still operate each tab indepentently. If no diode, then both of those dash switches would in a sence now be tied together at the new single control switch; no independent triming.
But if used for a single drive, you just have 1 up and down switch, nothing to keep independent. thus no diode needed

Got it. Thanks.

Hello

I asked myself the same question ?

With this tutorial, I have the answer

Thanks to the participants