System Description

SYSTEM

HEADLAMP WASHER SYSTEM : System Description


OUTLINE

Headlamp washer is controlled by each function of BCM and IPDM E/R.
- Combination switch reading function
- Headlamp washer control function
- Headlamp washer relay control function

HEADLAMP WASHER BASIC OPERATION

- BCM detects the combination switch condition by the combination switch reading function.
- BCM transmits the headlamp washer request signal to IPDM E/R with CAN communication depending on each operating condition of the headlamp washer.





- Ignition switch ON
- Headlamps ON
- Front washer switch ON at first time
- Ignition switch ON
- Headlamps ON
- Front washer switch ON at fifth time after the first time
- IPDM E/R turns ON/OFF the headlamp washer relay by receiving the headlamp washer request signal, and controls the headlamp washer.