Hello guys i was trying to flash a 2019 with cm2450 the truck half way gave me an error i dont recall the code now. I tried reflashing again and keep getting ecm not detected ignition is off. I went ahead and removed the cluster and unplugged the security gateway and used a bypass there, before i was using the obd2 and cable to the CAN block as bypass. I also removed both batterys for 15 min and still no communication.

Any recommendations or anyone has pinout to try on bench?

Code is. $0549