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Mazda CX-5 Service & Repair Manual: Rain Sensor

Outline

Function

Rainfall Amount Detection Function

CAUTION:

Initial Setting Function

Sensitivity Adjustment Function


On-board diagnostic function

Construction

Operation

Operation With No Rainfall Contacting Windshield

1. Infrared light is emitted from the LED in the rain sensor towards the windshield.

2. The emitted infrared light reflects off the windshield.

3. The infrared light reflected off the windshield is received by the photodiode in the rain sensor.

4. When the photodiode receives the light, the microcomputer in the rain sensor calculates the rainfall amount from the reflection rate, and sends a windshield wiper control signal to the front body control module (FBCM).


Operation with Rainfall Contacting Windshield

1. Infrared light is emitted from the LED in the rain sensor towards the windshield.

2. Emitted infrared light goes through the windshield and penetrates the rain drops on the windshield.

3. The infrared light which cannot penetrate is reflected off the windshield and is received by the photodiode in the rain sensor.

4. When the photodiode receives the light, the microcomputer in the rain sensor calculates the rainfall amount from the reflection rate, converts this to an electrical signal and sends a windshield wiper control signal to the front body control module (FBCM).


Fail-safe

Wiper Bracket Removal [Panel Replacement]
Symbol Mark Installation Procedure 1. When installing new parts, measure and adjust the body as necessary to conform with standard dimensions. 2. Drill holes for the plug welding before inst ...

Rain Sensor Removal/Installation
1. Disconnect the negative battery cable.. 2. Spread open the rain sensor cover in the direction of the arrows (1) and disengage tabs A to remove it. 3. Disconnect the rain sensor connector ...

Other materials:

Moonroof
The moonroof can be opened or closed electrically only when the ignition is switched ON. WARNING Do not let passengers stand up or extend part of the body through the open moonroof while the vehicle is moving: Extending the head, arms, or other parts of the body through the moonroof is da ...

Suspension Abbreviations
AAS Active Adaptive Shift ABS Antilock Brake System ABDC After Bottom Dead Center ACC Accessories AFS Adaptive Front Lighting System ALC ...

Rear Seat
Split Folding The seatbacks can be folded down to provide more space in the luggage compartment. WARNING Tightly secure cargo in the luggage compartment when it is transported with the seatbacks folded down: Driving without tightly securing cargo and luggage is dangerous as it could move and ...

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