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Mazda CX-5 Service & Repair Manual: Auto Wiper System

Outline

Function

Customize function

On-board diagnostic function

Structural view


System wiring diagram


Operation

WARNING:

Intermittent Operation/Continuous Low Speed Operation

1. When the wiper and washer switch is moved to the AUTO position with the ignition switched ON (engine off or on) (1), the start stop unit detects a windshield wiper switch signal (AUTO).(2)

2. When the start stop unit detects a windshield wiper switch signal (AUTO), it sends a windshield wiper switch position signal (AUTO) and an AUTO volume signal to the front body control module (FBCM) as CAN signals.(3)

3. When the front body control module (FBCM) receives the windshield wiper switch position signal (AUTO), it sends the windshield wiper switch position signal (AUTO) and the AUTO volume signal to the rain sensor as LIN signals. At the same time, it sends a vehicle speed signal from the PCM to the rain sensor as a LIN signal.(4)

4. When the rain sensor receives the windshield wiper switch position signal (AUTO), it detects amount of rainfall and illumination level.(5)

5. The rain sensor determines the operation interval of the windshield wipers based on the detected rainfall amount and illumination level, and sends a windshield wiper low speed operation signal to the front body control module (FBCM).(6)

6. When the front body control module (FBCM) receives the windshield wiper low speed operation signal, it supplies the base current from the internal CPU to transistor A (7), and collector current flows from the internal power supply (8), turning the windshield wiper low relay on.(9)

7. When the windshield wiper low relay is turned on, current flows from the battery to the windshield wiper motor and the windshield wipers operate intermittently or continuously at low speed.(10)


High Speed Operation

1. When the wiper and washer switch is moved to the AUTO position with the ignition switched ON (engine off or on) (1), the start stop unit detects a windshield wiper switch signal (AUTO).(2)

2. When the start stop unit detects the windshield wiper switch signal (AUTO), it sends the windshield wiper switch position signal (AUTO) and an AUTO volume signal to the front body control module (FBCM) as CAN signals.(3)

3. When the front body control module (FBCM) receives the windshield wiper switch position signal (AUTO), it sends the windshield wiper switch position signal (AUTO) and the AUTO volume signal to the rain sensor as LIN signals. At the same time, it sends a vehicle speed signal from the PCM to the rain sensor as a LIN signal.(4)

4. When the rain sensor receives the windshield wiper switch position signal (AUTO), it detects the amount of rainfall and illumination level.(5)

5. Based on the detected rainfall amount and illumination level, the rain sensor sends a windshield wiper high speed operation signal to the front body control module (FBCM).(6)

6. When the front body control module (FBCM) receives the windshield wiper high speed operation signal, it supplies the base current from the internal CPU to transistors A and B (7), and collector current flows from the internal power supply (8), turning the windshield wiper high relay on.(9)

7. When the windshield wiper high relay is turned on, current flows from the battery to the windshield wiper motor and the windshield wipers operate at high speed.(10)


Wipers
...

Rear Wiper Arm And Blade Adjustment
1. Switch the ignition ON (engine off or on). 2. Operate the rear wiper. 3. Verify that the rear wiper is operating and stop the rear wiper. 4. Verify that the rear wiper is stopped at the auto- ...

Other materials:

Rear Washer Nozzle Adjustment
CAUTION: If the nozzle angle is adjusted with excessive force by strongly inserting a needle or similar thin tool into the injection nozzle of rear washer nozzle, it could damage the nozzle internally. When adjusting the nozzle, be careful not to apply excessive force. 1. Inse ...

Windshield Wiper Motor
Purpose The windshield wiper motor transmits rotation force to the windshield wiper link to operate the windshield wiper arms and blades. Function The windshield wiper motor operates using the current from the front body control module (FBCM) which is input according to the ...

Awd Control Module Configuration
CAUTION: When performing configuration, it is necessary to read the coupling component calibration data from the AWD control module before replacing it. Connect the M-MDS to the vehicle and perform vehicle identification before removing the AWD control module. The coupling component ...

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