Kia Optima: Operation - Auto Head Lamp Leveling Unit. Description and Operation - Auto Head Lamp Leveling Device - Body Electrical System - Kia Optima TF 2011-2019 Service ManualKia Optima: Operation

Operating Procedure

1. Suspension angle change resulted from vehicle's load change.
2. Sensor angle change.
3. Microprocessor calculates necessary head lamp angle change amount.
4. Sending a proper signal to head lamp leveling device and driving actuator.
Operating Condition
1. Ignition on
2. Low beam on
3. On stop : If sensor lever change is 2° and above, head lamp is operated after max. 1.5 sec.
4. On driving : If vehicle velocity is over 4km/h(2.48mile/h), velocity change is not over 0.8-1.6km/h(0.5 ~ 1.0mile/h) per second, and loading condition is changed, then head lamp is operated.
Components
1. Auto head lamp leveling unit

1. Leveling unit & sensor

2. Sensor mounting bracket

3. Sensor linkage

A. Using a Micro-processor, percept the operation lever's mechanical angle change or speed signal.
B. As an actuator control device of inner control program, mounting on the rear center arm.
2. Actuator
A. Change the head lamp lighting direction up or down since automatic head lamp leveling unit sensing the input signal following the vehicle's statically changes.


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