OUTLINE

- Auto light system is controlled by each function of BCM and IPDM E/R.
Control by BCM

- Combination switch reading function
- Headlamp control function
- Auto light function

Control by IPDM E/R

- Relay control function

- Auto light function turns the exterior lamps* and each illumination ON/OFF automatically according to the outside brightness.

*: Headlamp (LO/HI), parking lamp, tail lamp and license plate lamp (Headlamp HI depends on the combination switch condition.)
AUTO LIGHT FUNCTION

- BCM detects the combination switch condition with the combination switch reading function. (Lighting switch AUTO)
- BCM supplies voltage to optical sensor when the ignition switch is turned ON or ACC.
- Optical sensor converts outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.
- BCM judges outside brightness from the optical sensor signal and judges ON/OFF condition of the exterior lamp and each illumination according to the outside brightness.
- BCM transmits each request signal to IPDM E/R with CAN communication according to ON/OFF condition by the auto light function.

NOTE：
ON/OFF timing differs based on the sensitivity from the setting. The setting can be set by CONSULT-III. Refer to CONSULT-III Function (BCM - HEAD LAMP).