System Description

SYSTEM

FRONT FOG LAMP SYSTEM : System Description


SYSTEM DIAGRAM







OUTLINE

Front fog lamp is controlled by combination switch reading function, front fog lamp control function of BCM, and relay control function of IPDM E/R.

FRONT FOG LAMP OPERATION

- BCM detects the combination switch condition by the combination switch reading function.
- BCM transmits the front fog lights request signal to IPDM E/R and the combination meter via CAN communication according to the front fog lamp ON condition.
- Front fog lamp switch ON, and any of the following condition is satisfied.(except for the high beam ON)
- Lighting switch 2ND
- Lighting switch AUTO and the power switch ON
IPDM E/R turns the integrated front fog lamp relay ON, and turns the front fog lamp ON according to the front fog lights request signal.
Combination meter turns the front fog lamp indicator lamp ON according to the front fog lights request signal.