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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:

Turn and Lane-Change Signals
NOTE • If an indicator light stays on without flashing or if it flashes abnormally, one of the turn signal bulbs may be burned out. • A personalized function is available to change the turn indicator sound volume. Refer to Personalization Features on . Turn Signals Move the signal lev ...

Differential Oil Replacement
1. Place the vehicle on level ground. 2. Remove the filler plug. 3. Remove the drain plug and drain the differential oil into a container. 4. Install a new washer and the drain plug, and tighten. Tightening torque 40—53 N·m {4.1—5.4 kgf·m, 30—39 ft·lbf} 5. Add the ...

Wheel Balance Adjustment (Aluminum Alloy Wheel)
CAUTION: Adjust the outer wheel balance first, then the inner wheel balance. Be careful not to scratch the wheels. Adhesive-type Balance Weight (Outer) 1. Remove the old balance weight from the wheel. 2. Remove the double-sided adhesive tape remaining on the wheel, then ...

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