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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

Sensors, Switches, Relays
...

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:

Accessory Sockets
Only use genuine Mazda accessories or the equivalent requiring no greater than 120 W (DC 12 V, 10 A). Front The ignition must be switched to ACC or ON. Center, Rear The accessory sockets can be used regardless of whether the ignition is on or off. CAUTION ●To prevent accessory ...

Front Drive Shaft (Tripod Joint) Disassembly/Assembly
1. Disassemble in the order indicated in the table. 2. Assemble in the reverse order of disassembly. 1 Boot band (transaxle side (large diameter)) (See Boot Band (Transaxle Side (Large Diameter)) Disassembly Note.) (See Boot Band (Transaxle Side (Large Diameter) ...

Tire Pressure Monitoring System Set Switch
Purpose The tire pressure monitoring system set switch is used to initialize the tire pressure monitoring system. Construction, Operation The tire pressure monitoring system set switch is installed to the instrument panel. The tire pressure monitoring sy ...

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