On Board Diagnosis Logic
WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may come on. If the fuel filler cap is not tightened properly, the MIL may come on.
For on board diagnosis logic, see Fig 1.