lx 173 electronic clutch problem?

Went to mow this morning and when I engaged the electronic clutch for the blades the engine acted like I'd turned off the key.
I thought the electronic clutch went bad so I replaced it and got the same problem.
Then replaced the engagement switch and same problem, it kills the engine.
Also engaged the switch without it hooked to the clutch,same problem.................
traced the wires looking for a short but couldn't find one.

I'm at a loss to what ta do now.............:ashamed:

Any ideas to the next step?

lx 173 electronic clutch problem?