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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:

Glass Antenna Inspection
1. Disconnect the negative battery cable.. 2. Partially peel back the seaming welt. 3. Remove the liftgate upper trim.. 4. Disconnect antenna feeder No.3 connector.. 5. Visually inspect the glass antenna for damage. 6. Verify that the continuity between the glass antenna terminals is as in ...

Steering Gear And Linkage
Purpose/ Function The rotational movement input from the intermediate shaft is converted to a linear movement in the horizontal direction of the steering rack by the rack and pinion mechanism, and then transmitted to the tires and wheels. Construction A size and weight-redu ...

PCM Removal/Installation
CAUTION: There are two types of PCM settings. If the incorrect PCM is installed, it could cause interference with engine control. When replacing the PCM, verify the first four digits of the part number indicated on the PCM label before replacement, and replace the PCM with one ...

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