Nissan patrol 2008 TB48DE M/T (Cranking NO Start)

Hello everyone... I'm working on a 2008 Nissan Patrol TB48DE...(Cranking no start).. When I turn the ignition, there's no check engine light on the dashboard... I checked the power supply and ground to the engine control unit (ECU), and they're present... Is it possible that the NATS system is cutting off power to the ECM (Electronic Control Module)? There's a flashing red light on the dashboard opposite the windshield, which is for the NAT system... I'd like to know how this light should behave when the ignition switch is on... and during cranking... Does it turn off or stay on?... Thank you all