System Description: Notes

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.

The illumination lamp operation is controlled by the lighting switch which is built into the spiral cable and headlamp battery saver control unit. The battery saver system is controlled by headlamp battery saver control unit and BCM.

Power is supplied at all times

to tail lamp relay terminals 2 and 6
through 15A fuse [No. 54, located in fuse, fusible link and relay block (J/B)],
to headlamp battery saver control unit terminal 7
through 10A fuse [No. 6, located in fuse block (J/B) No. 1].

When ignition switch is in ON or START position, power is supplied

to headlamp battery saver control unit terminal 1
through 10A fuse [No. 1, located in fuse block (J/B) No. 1].

Ground is supplied

to headlamp battery saver control unit terminals 4 and 11
through grounds M25 and M115.