Lamp Control Module: Description and Operation

SYSTEM OUTLINE
With the ignition SW turned on, the current flows to TERMINAL 7 of the integration relay through GAUGE fuse.
Voltage is applied at all times to TERMINAL (B) 3 of the integration relay through the taillight relay (Coil side), and to TERMINAL (B) 4 through the HEAD relay (Coil side).

1 NORMAL LIGHTING OPERATION
(Turn taillight on)
With the light control SW turned to TAIL position, a signal is input into TERMINAL (B) 2 of the integration relay. According to this signal, the current flowing to TERMINAL (B) 3 of the relay flows from TERMINAL (B) 2 to TERMINAL 14 of the light control SW to TERMINAL 16 to GROUND and taillight relay causes taillight to turn on.
(Turn headlight on)
With the light control SW turned to HEAD position, the signals are input into TERMINALS (B) 2 and (B) 5 of the integration relay. According to these signals, the current flowing to TERMINAL (B) 4 of the relay flows to TERMINAL (B) 5 to TERMINAL 13 of the light control SW to TERMINAL 16 to GROUND in the headlight circuit, and causes taillight and HEAD relay to turn the light on. The taillight circuit is same as above.

2. LIGHT AUTO TURN OFF OPERATION
With the lights on and the ignition SW turned off (Input signal goes to TERMINAL 7 of the integration relay), when door on front LH side is opened (Input signal goes to TERMINAL 6 of the relay), the relay operates and the current is cut off which flows from TERMINAL (B) 3 of the relay to TERMINAL (B) 2 in taillight circuit and from TERMINAL (B) 4 to TERMINAL (B) 5 in headlight circuit. As a result, all lights are turned off automatically.