Tail Lamp: Description and Operation

PARK, SIDEMARKER, TAIL, AND LICENSE LAMPS
The park lamp, sidemarker lamps, tail lamps, and license lamps, are turned on when the headlamp switch is placed in either the PARK or HEAD position, or anytime the headlights are requested. With the headlamp switch placed in the OFF position, and the Daytime Running Lamps (DRL) ambient light sensor indicating low light conditions, the Daytime Running Lamps (DRL) control module will operate the park lamp, sidemarker lamps, tail lamps, and license lamps. The PARK fuse supplies battery voltage to the headlamp switch and DRL control module. Current flow is from the headlamp switch or the DRL control module to the park lamp, sidemarker lamps, tail lamps, and license lamps. The LF park lamp is grounded at G101 and the RF park lamp is grounded at G102. The side marker lamps are grounded through the corresponding rear turn signal lamps when the rear turn signal lamps are inactive. The remaining lamps are grounded a G401.

TAIL, LICENSE LAMPS, AND HEADLAMP POSITION LAMPS (EXPORT)
The tail lamps, headlamp position lamps, and license lamps, are turned on when the headlamp switch is placed in either the PARK or HEAD position, or anytime the headlights are requested. With the headlamp switch placed in the OFF position, and the engine running, the Daytime Running Lamps (DRL) control module will operate the tail lamps. The PARK fuse supplies battery voltage to the headlamp switch and DRL module. Current flow is from the headlamp switch to the headlamp position lamps and license lamps. The tail lamps receive the headlamp switch voltage via an inactive DRL control module. For DRL operation current flow is from the DRL control module to the tail lamps only. The LF headlamp position lamp is grounded at G101 and the RF headlamp position lamp is grounded at G102. The remaining lamps are grounded a G401.