System Description

SYSTEM


HEADLAMP WASHER SYSTEM : System Description


OUTLINE
Headlamp washer is controlled by each function of BCM and IPDM E/R.

Control by BCM
- Combination switch reading function
- Headlamp washer control function

Control by IPDM E/R
- 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.






Operation by front washer switch (The first time)
- Ignition switch ON
- Headlamps ON
- Front washer switch ON at first time

Operation by front washer switch (From the second 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.