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.

Joint connector-9.
Harness for open or short between headlamp battery saver control unit and combination meter.
Harness for open or short between BCM and combination meter.
: Repair open circuit or short to ground or short to power in harness or connectors.