Automatic Light Control

With the ignition SW turned ON, current flows from the ECU-IG fuse to TERMINAL 1 of the automatic light control sensor. Voltage is applied at all times to TERMINAL 2 of the automatic light control sensor through the DOME fuse, and to TERMINAL 7 of the automatic light control sensor through the taillight relay (coil side), and to TERMINAL 5 of the automatic light control sensor through the head relay (coil side).

AUTOMATIC LIGHT CONTROL
When the light control SW is at AUTO position, if the automatic light control sensor detects a decrease in the ambient light (to between approx. 90 and approx. 475 lux), the automatic light control sensor is activated. About 5 seconds after it is activated, current flows from TERMINAL 6 of the sensor to TERMINAL 12 of the light control SW --> TERMINAL 16 --> GROUND, lighting up the headlight and taillight.

If the ambient light drops below approx. 90 lux, the automatic light control sensor is activated and about 3 seconds later, current flows from TERMINAL 6 of the sensor to TERMINAL 12 of the light control SW --> TERMINAL 16 --> GROUND, lighting up the headlight and taillight.

When the light control SW is at AUTO position and activation of the automatic light control sensor has turned ON the headlights and taillights, if the automatic light control sensor detects the ambient light above approx. 1000 lux. the sensor is turned OFF after about 5 seconds. so the current from TERMINAL 6 of the sensor to TERMINAL 12 of the light control SW is cut OFF, and the headlights and taillights turn OFF.