Tail Lamp: Description and Operation

Circuit Description
Battery voltage is applied at all times to both the coil and contacts of the tail lamp relay from Fusible link BATT. With the light switch in PARK or HEAD, the coil of the tail lamp relay is grounded through the ETACM.

Battery voltage from fuse 6 and fuse 7 is then applied to the Left/Right head lamps, Left/Right rear combination lamps and Left/Right license lamps through the closed tail lamp relay contacts and all the lamps go on.