System Description
LIGHTING (EXT): LIGHTING SYSTEM: SYSTEM DESCRIPTION
1. AUTOMATIC LIGHT CONTROL SYSTEM
When the light control switch is in the AUTO position, the automatic light control system detects ambient light levels and controls the low beam headlights, clearance lights, taillights and license plate lights.
2. LIGHT AUTO TURN-OFF SYSTEM
The light auto turn-off system is used to prevent the exterior lights from being accidentally left on (low beam headlights, high beam headlights, clearance lights, taillights and license plate lights).
* The lights that will turn off will vary as shown in the table below, according to the position of the light control switch.
3. DAYTIME RUNNING LIGHT SYSTEM
The daytime running light system is designed to automatically illuminate the dimmed high beam headlights during the daytime to make the vehicle more visible to other vehicles.
* This system is controlled by the main body ECU and running light relay. The main body ECU transmits a turn ON signal to the running light relay, which illuminates the high beam headlights using duty control.
* This system is enabled when the following conditions are met:
* Ignition switch ON
* Engine speed signal input (engine running)
* Parking brake switch off
* Light control switch is in the off, tail or AUTO position (and the low beam headlights are not turned on via the automatic light control system).