Monte Carlo V6-3.4L VIN E (2000)
Exterior Lighting Module: Description and Operation
Park and License Lamps
The park and license lamps are controlled by the PARK LAMP relay in the RH I/P accessory wiring junction block. Both the coil and the switched sides
of the relay receive B+ at all times. When the headlamp switch is turned to the PARK position, ground is supplied through the headlamp switch to the
BCM through the park lamp switch input circuit. The BCM then applies a ground through the park lamp relay coil control circuit to the PARK LAMP
relay. This energizes the relay, closing the switch contact and applies B+ to both the REAR PARK LAMP fuse and the FRONT PARK LAMP fuse. B+
is then applied through the park lamps ON circuit to the front and rear park lamps and the license lamps turning them on. The park lamps and license
lamps receive ground at all times.
