Front Wiper Auto Operation
Rain Sensing
Rain level and sensor conditions are detected by rain sensor.
- BCM transmits the vehicle conditions (vehicle speed, front wiper condition, rain sensor sensitivity setting, etc.) to the rain sensor via the rain sensor serial link.
- Rain sensor judges a wiping speed for front wiper by rain condition and the vehicle conditions. And it transmits the wiping speed request signal to the BCM via the rain sensor serial link.
Auto Wiping Operation
- BCM receives the wiping speed request signal from the rain sensor via the rain sensor serial link.
- BCM controls front wiper operation according to the wiping speed request signals. And it transmits the front wiper request signals (LO or HI) to the IPDM E/R via CAN communication line.
Front wiper AUTO operating condition
- Ignition switch ON
- Front wiper switch AUTO
NOTE:
When the front wiper switch is turned to AUTO position, front wiper operates once regardless of a rainy condition.
Rain Sensor Sensitivity Setting
BCM determines rain sensor sensitivity according to a wiper volume.
| Wiper volume dial position | Sensitivity |
|---|---|
| 1 | High sensitivity |
| 2 | |
| 3 | Medium - high sensitivity |
| 4 | |
| 5 | Low - medium sensitivity |
| 6 | |
| 7 | Low sensitivity |
NOTE:
When the wiper volume is turned up at 1 level with front wiper AUTO operating condition, front wiper operates once.