Diagnosis Description
WARNING: This page is about a different car, the 2008 Infiniti M45 and 2008 Infiniti M35. However, it is still accessible from the selected car via links, so may be relevant.
B2552 Intelligent Key unit internal malfunction judges NG by self-detecting the Intelligent Key unit internal malfunction.
If this DTC (Diagnostic Trouble Code) is displayed, replace the Intelligent Key unit and perform the specified registration procedure. Refer to the Technical Bulletin.