Tail Lamp: Description and Operation

Circuit Description
Battery voltage is applied at all times to the coil and contacts of the tail lamp relay from tail lamp fuse. With the light switch in PARK or HEAD, the coil of the tail lamp relay is grounded through the ETACM (Without DRL)/DRL control module(With DRL). Battery voltage from fuse 31 and fuse 26 is then provided to the lamps (tail lamps, HID head lamps, inside lamps and license lamp, side marker lamp) through the tail lamp relay contact and all the lamps go on.

There is a newly adopted system called tail lamp auto turn off system controlled by ETACM. When the light switch in PARK, the ignition switch is removed from the ignition key hole and the left front door opened, the ETACM calculates the condition and turn off the tail lamps automatically.