Headlight

1. DAYTIME RUNNING LIGHT OPERATION
When the engine is started, a signal from the generator is input to daytime running light relay (Main) TERMINAL 11.

At this time, if the parking brake lever is pulled up, the relay does not operate, so the daytime running light system does not operate. When the parking brake lever is released, a signal is input to daytime running light relay (Main) TERMINAL 8. This activates the daytime running light relay (Main) and turns on the DIMMER relay. The current from the battery flows through the fusible link block to DIMMER relay (Point side) to HEAD (LH-UPR) fuse to headlight LH (High) to headlight RH (High) to daytime running light relay No.3 TERMINAL (A) 5 to TERMINAL (A) 3 to GROUND and the headlights are lit dimmer than usual. Once the daytime running light system is operated, the headlights remain lit even though the parking brake lever is pulled up. The headlights remain lit even when the engine stops with the ignition SW ON and the signal from the generator is cut off. When the ignition SW is turned from ON to OFF, the daytime running light system is canceled and the headlights are turned OFF. If the engine is started with the parking brake lever released, the daytime running light system operates and the headlights are turned ON when the engine starts running.

2. HEADLIGHT OPERATION
* When the light control SW is turned to HEAD position

When the light control SW is turned to HEAD position, the HEAD relay is turned ON. At the same time, a signal is input to the daytime running light relay (Main) TERMINAL 5.

As a result, the daytime running light relay (Main) cancels the daytime running light system operation and turns OFF the headlight LH, RH (High).

Simultaneously, the current from the battery flows from the fusible link block to HEAD relay (Point side) to HEAD (LH-LWR), HEAD (RH-LWR) fuse to headlight LH, RH (Low) to GROUND and from the HEAD (LH-LWR) fuse to combination meter TERMINAL (C) 14 to TERMINAL (D) 2 to GROUND and turns ON both the low beam of the headlight and HEAD indicator light (USA).

* When the dimmer SW is turned to HIGH position
When the light control SW is turned to HEAD position, the low beam of the headlights are turned ON and at the same time, current flows from HEAD (RH-LWR) fuse to daytime running light relay No.3 (Coil side) to GROUND and turns ON the daytime running light relay No.3.

When the dimmer SW is turned to HIGH position, a signal is input to daytime running light relay (Main) TERMINAL 16. This activates the DIMMER relay and the current from the battery flows from the fusible link block to DIMMER relay (Point side) to HEAD (LH-UPR) fuse to headlight LH (High) to daytime running light relay No.3 TERMINAL (B) 2 to TERMINAL (B) 1 to GROUND. At the same time the current flows from DIMMER relay (Point side) to HEAD (RH-UPR) fuse to daytime running light relay No.3 TERMINAL (A) 2 to TERMINAL (A) 5 to headlight RH (High) to daytime running light relay No.3 TERMINAL (B) 2 to TERMINAL (B) 1 to GROUND. Also current flows from the daytime running light relay No.3 TERMINAL (A) 3 to TERMINAL (A) 5 to combination meter TERMINAL (D) 4 to TERMINAL (D) 2 to GROUND. As a result the headlight high beam, low beam and high beam indicator light are turned ON simultaneously.

* When the dimmer SW is turned to FLASH position
When the dimmer SW is turned to FLASH position, the HEAD relay is turned ON, the daytime running light system is canceled and the daytime running light relay No.3 is turned ON as when the light control SW is turned to HEAD position. At the same time, the DIMMER relay is turned ON as when the dimmer SW is turned to HIGH position. As a result, the headlight high beam, low beam and high beam indicator light are turned ON simultaneously.