48v EZGO TXT No Click

[Missioncarts]

I have a 2014 EZGO TXT I built for a friend. I put a remanufaftured 48v motor in it and rebuilt controller. All new batteries, sensors and solenoid. He drove the cart for 2 months and one day it just stopped on him. I've gone through everything that I can find on here and I'm still not able to get it going. It does nothing, no click, no movement, nothing.

I've checked the ITS, micro sensor, f/r switch, ignition, solenoid, and wiring inbetween all of that. Battery pack is at 51v and I am getting that at all of the solenoid activation circuit points. I've bypassed the 4 pin connector that gives people problems that comes from the throttle box. I've checked the charger receptacle, and even bypassed it for testing. I am still not able to get a click. Ive replaced the solenoid and still nothing. Any ideas on what to check next?

Cart info:
Motor: 48v 624105
Controller: 1206hb-5201
Solenoid: Emerson 586-120111 DC Power Solenoid, 48V
Battery pack voltage: 51v
F/R on the dash.