I just installed a new compressor on a 05 Rendezvous and after pulling a vacuum and starting to recharge I noticed the ac clutch wasn’t engaging. Fuse and relay are good, I can hear the relay click with the key on while reiinstalling the relay. Checked with multimeter and there’s no voltage at the compressor connector. I can command the ac on with my tech 2 scan tool and still no power. There are no trouble codes in any of the modules. The cooling fans also aren’t coming on but they will work when commanded by the scanner. I’m frustrated and have no idea where to look next, can anyone help me?