Basic Principle
Emitted Beam from luminosity diode is reflected entirely against the windshield exterior, and then turn into photo diode.
If there is water on the windshield exterior, beam separates optically, and the degree of remained beam is measured in the photo diode.What there is water in the windshield, it means beam is not reflected all, so the degree of lost beam indicates the degree of glass surface wet.
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Wiper ECU transmits the signal as a rain sensor, and then the rain sensor perceives the rainwater to transmit to the wiping order wiper ECU, wiper ECU controls the wiper motor according to the signal.
Contact InfluenceThe rain sensor can malfunction due to following condition
Contamination of the measurement surface. |
Air bubbles between the windshield and the coupling pad contact surface. |
The movement of coupling pad by vibration. |
Damaged wiper blade. |
In case that engine starts under wiper switch AUTO, rain sensor activates after once wiper operation to inform the driver that the system is under AUTO.
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Removal
1.
Turn the ignition switch OFF and disconnect the battery
negative (-) cable.
2.
Disconnect the manifold absolute pressure sensor
connector (A).
...
Glass antenna
When the radio power switch is turned on while the ignition switch is in either
the ON or ACC position, your car will receive both AM and FM broadcast signals
through the antenna in the rear ...
Repair procedures
Fuel Pressure Test
1.
Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group).
When removing the fuel pump re ...