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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:

B Pillar Upper Trim Removal/Installation
1. Remove the following parts: a. Front scuff plate. b. Rear scuff plate. c. B-pillar lower trim. d. Adjuster anchor cover. e. Upper anchor installation bolts on the front seat belt. 2. Partially peel back the seaming welt. 3. Take the shaded area shown in the figure, and pull the B-pi ...

Rear ABS Wheel Speed Sensor Inspection [2 Wd]
Installation Visual Inspection 1. Inspect the following items: If there is any malfunction, replace the applicable part. a. Excessive play of the ABS wheel-speed sensor b. Deformation of the ABS wheel-speed sensor Clearance Inspection 1. Remove the ABS wheel-speed sensor. 2. M ...

Rear Center Seat Belt Removal/Installation
CAUTION: The ELR (emergency locking retractor) has a spring that will unwind if the retractor cover is removed. The spring cannot be rewound by hand. If this occurs, the ELR will not work properly. Therefore, do not disassemble the retractor. 1. Press the release switch, then dis ...

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