Engine control module from a 2001 Nissan Pathfinder. This was carefully removed from a vehicle that ran and idled well with no check engine light on. The case and connector have no broken parts. The circuit board has been inspected and no damage was found. The images are of the actual item you will receive. This item will require on-car programming, coding or flashing during installation in order to work with your vehicle. Please confirm that you or your repair facility can perform this procedure before making your purchase. If your idle air control valve has failed, it will need to be replaced prior to the installation of this replacement ECU. Failure to replace a bad IAC valve will immediately damage the replacement ECU. Fits 2001 Infiniti QX4 and Nissan Pathfinder with automatic transmission and part number MEC14-171 A1 ONLY. The last four characters on the part label do NOT need to match.