System Description

AUTO LIGHT SYSTEM


System Description

Automatically turns ON/OFF the parking lamps and the headlamps in accordance with ambient light.
Timing for when lamps turn ON/OFF can be selected using four modes.

OUTLINE
The auto light control system has an optical sensor inside it that detects outside brightness.
When the lighting switch is in AUTO position, it automatically turns ON/OFF the parking lamps and the headlamps in accordance with ambient light. Sensitivity can be adjusted in four steps. For the details of the setting, Refer to Preliminary Check.
Optical sensor, power is supplied
- from BCM (body control module) terminal 17
- to optical sensor terminal 1.
Optical sensor, ground is supplied
- to optical sensor terminal 3
- through BCM terminal 18.
When ignition switch is turn to ON position, and
When outside brightness is darker than prescribed level, input is supplied
- from optical sensor terminal 2
- to BCM terminal 14.
The headlamps will then illuminate. For a description of headlamp operation, Refer to "System Description".

COMBINATION SWITCH READING FUNCTION
Refer to System Description.

EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (or if auto light system is activated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.

DELAY TIMER FUNCTION
Delay timer function carries out a function that BCM activates the timer and controls lights out of headlamps by door switch signal and lightning switch signal when turning the Ignition switch OFF while it is ON and headlamps are ON by the auto light function.
Timer types are a 5 minutes timer and a 45 seconds timer
- When opening any door (door switch is ON), the 5 minutes timer starts and then headlamps go out five minutes later
- When all the doors are closed (from door switch ON to OFF), the 45 second timer starts and then headlamps go out 45 seconds later. If any door is opened (door switch ON) while the 45 seconds timer is in operation, the 5 minutes timer starts again
- The timer stops when turning on the ignition switch or turning off the auto light switch under the above conditions.
Delay timer control mode can be changed by the function setting of CONSULT-III.