9. Detect Malfunctioning Part

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Check the following:

20A fuse
Fuse, fusible link and relay block (J/B) harness connector E3
Fuse block (J/B) No. 2 harness connector E215
Harness for open and short between ECM relay and fuse
: Repair or replace harness or connectors.