The Nissan Xterra Frontier 4.0L 4WD A/T Engine Control Module 1A ECU ECM MEC35-652 is a specific engine control unit for Nissan vehicles. It requires programming and has a snap-on mounting style. Made of aluminum, this ECU comes with pin and blade terminals and is designed for front placement on the vehicle. With a manufacturer warranty of 1 month, this module is a genuine Nissan part sourced from the United Arab Emirates, featuring easy installation and compatibility with specific Nissan models.