Tail Lamp: Description and Operation

When the light control SW is turned to the TAIL or HEAD position, the signal is input to TERMINAL TAIL of the body ECU No.2. This activates the body ECU No.2 to flow the current from the battery into the ALT fuse, tail relay (Coil side) TERMINAL TRLY of the body ECU No.2 to GROUND in that order to turn on the tail relay. The current flows from the TAIL fuse into the parking lights, front side marker lights, license plate lights TERMINAL 5 of the light failure sensor to TERMINAL 7 and 12 to taillights, and rear side marker lights in that order to turn on each light.

TAILLIGHT DISCONNECTION WARNING
If any taillight wiring is faulty when the ignition SW is turned to the ON position with the light control SW set at TAIL or HEAD, the light failure sensor detects a voltage difference and inputs the signal to TERMINAL LF of the body ECU No.2. The body ECU No.2 is activated to turn on the rear lights warning light in the combination meter to warn the driver.