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Mazda CX-5 Service & Repair Manual: Headlight Leveling Actuator

Purpose, Function

Construction


Operation

1. When the ignition is switched on (engine on or off), the auto leveling sensor inputs a vehicle height signal to the AFS control module.

2. When the headlights (LO) turn on, the AFS control module calculates the amount of change in vehicle height * based on the vehicle height signal.

3. If the operation conditions are met, the AFS control module calculates a target optical axis based on the calculated change in vehicle height *. For details on the operation conditions, refer to the headlight auto leveling system..

4. The AFS control module outputs the calculated target optical axis signal to the headlight leveling actuator.

5. The headlight leveling actuator drives the motor based on the input target optical axis.

6. When the motor is driven, the shaft moves back and forth and the reflector shifts to move the optical axis.


* The amount of change in vehicle height is the calculated 1 s average value of the detected vehicle body angle which the AFS control module detects every 0.1 s.

Fail-safe

Headlight High Beam Indicator Light
Purpose Notifies the user that the headlights (HI) are illuminated. Function Illuminates when the headlight (HI) or parking illumination conditions are met. Construction ...

High Mount Brake Light
Purpose The high-mount brake light signals vehicles to the rear that the vehicle is stopped. Function The high-mount brake light illuminates in conjunction with the operation ...

Other materials:

Air Fuel Ratio (A/F) Sensor Removal/Installation
WARNING: A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system. CAUTION: Do not allow flammable objects such as the taping for bundling wiring harness to come into contact with the exhau ...

Key Cylinder Switch
Purpose The switch turns on/off in conjunction with the front door key cylinder lock/unlock and the rear body control module (RBCM) detects the key cylinder operation condition by the change in the voltage. Function The key cylinder switch contact point changes in conjuncti ...

Turn Light System
Purpose The turn light system flashes the turn light three times automatically according to the turn switch operation. The front body control module (FBCM) performs turn light system fail-safe.. Function The front body control module (FBCM) performs control based on th ...

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