System Description [12/2018 - ]

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AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL

General
The automatic headlight beam level control system ensures forward visibility and prevents dazzling of drivers in oncoming and preceding vehicles by controlling the headlight beam level vertically when the weight of passengers and loads has caused the vehicle attitude to change.

HINT:

The angle of the low beam headlights is adjusted up or down when the vehicle posture changes while accelerating or decelerating.

Function of Main Components

Component	Outline
No. 1 Headlight ECU Sub-assembly LH	Receives various signals, calculates changes in the vehicle posture, and actuates the headlight swivel and leveling motor.
Headlight Swivel and Leveling Motor	Based on the signals received from the No. 1 headlight ECU sub-assembly LH or RH, the motors move the reflectors in the headlight to change the low beam angle.
Rear Height Control Sensor Sub-assembly LH	Transmits a rear height control sensor sub-assembly LH signal to the No. 1 headlight ECU sub-assembly LH.
Skid Control ECU (Brake Booster With Master Cylinder Assembly)	Transmits a speed sensor signal to the No. 1 headlight ECU sub-assembly LH.
Hybrid Vehicle Control ECU	Transmits a READY ON status signal to the No. 1 headlight ECU sub-assembly LH.
Main Body ECU (Multiplex Network Body ECU)	Transmits a headlight status signal to the No. 1 headlight ECU sub-assembly LH.
Combination Meter Assembly (Meter Circuit Plate)	If the system malfunctions, "Headlight System Malfunction Visit Your Dealer" warning message will be displayed on the multi-information display in the combination meter assembly in accordance with the signal from the No. 1 headlight ECU sub-assembly LH.