System Description

WARNING: This page is about a different car, the 2006 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Power is supplied at all times

through 10A fuse [No. 20, located in fuse block (J/B)]
to stop lamp switch terminal 1, and
to stop lamp relay terminals 2 and 3 (with hill descent control and hill start assist).

When the brake pedal is pressed, the stop lamp switch is closed and power is supplied

through stop lamp switch terminal 2
to rear combination lamp LH and RH terminal 2
to high-mounted stop lamp terminal 1
to ABS actuator and electric unit (control unit) terminal 41.

Ground is supplied

to rear combination lamp LH terminal 5
through grounds B7 and B19, and
to high-mounted stop lamp terminal 2
through grounds D406 and D504, and
to rear combination lamp RH terminal 5
through grounds B117 and B132.

With power and ground supplied, the stop lamps illuminate.