Front Wiper Auto Operation
Rain Detection
Rain level and sensor conditions are detected by rain sensor.
- BCM transmits the vehicle condition signal (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 front wiper 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 front wiper request signal. 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 rainy conditions.
Rain Sensor Sensitivity Setting
BCM determines rain sensor sensitivity according to wiper volume dial position.
| 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 dial position is turned up by 1 level under front wiper AUTO operating condition, front wiper operates once.
Splash Mode Operation
Front wiper is operated at HI regardless of the wiper volume adjustment position, when water drops are instantaneously sprayed over the windshield glass due to water splash from oncoming vehicles or other causes. After that, AUTO operation is performed depending on the amount of water drops.
Splash mode operation conditions
- Front wiper switch AUTO
- Ignition switch ON
NOTE:
Splash mode is not operated and auto wiping operation is performed, while the vehicle is stopped.