The rain sensor is behind the driving mirror in contact with the windscreen and has the purpose of automatically adjust, during the intermittent operation, the frequency of the windscreen wiper strokes as to the rain intensity.
The sensor has a range of adjustment that gradually varies between wiper stationary (no wiping) when the windscreen is dry, to wiper at first continuous speed (continuous slow) with heavy rain.
See also:
22. Electronic Stability Control (ESC) Activation /Malfunction Indicator Light
The ESC Activation/Malfunction Indicator Light in the instrument cluster will
come on for four seconds when the ignition switch is turned to the ON/RUN position.
If the ESC Activation/Malfunctio ...
Chassis
...
Engine Compartment — 1.4L
1 — Engine Coolant Reservoir
5 — Battery
2 — Engine Oil Dipstick
6 — Air Cleaner Filter
3 — Brake Fluid Reservoir
7 — Engine Oil Fill
4 — Front Distribution Unit (Fuses)
8 — Washer Fluid ...