Functions And Operating Principles: Interference
Rain sensor might malfunction due to the interferences listed below.
- Dust on the measuring surface and other surfaces on the light path (surface of light emitting diodes and photo diodes, fiber optics, bracket, and glass surface of windshield joint area) weakens the received light.
- Movement of windshield and bracket
- Movement of bracket due to vibration
- Damaged wiper blade
NOTE:
Whenever the integrated rain sensor does not operate or malfunctions, the driver can operate the wiper switch manually.