Kia Optima: Inspection - Auto Light Sensor. Repair procedures - Auto Lighting Control System - Body Electrical System - Kia Optima TF 2011-2025 Service ManualKia Optima: Inspection

In the state of IGN1 ON, when multi function switch module detects auto light switch on, tail lamp relay output and head lamp low relay output are controlled according to auto light sensor's input.

The auto light control doesn't work if the pin sunlight supply (5V regulated power from Ignition 1 power to sunlight sensor) is in short circuit with the ground.

If IGN1 ON, The BCM monitors the range of this supply and raises up a failure as soon as the supply’s voltage is out of range. Then this failure occurs and as long as this is present, the head lamp must be turned on without taking care about the sunlight level provided by the sensor.

This is designed to prevent any head lamp cut off when the failure occurs during the night.


Auto Light Sensor. Repair procedures
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Removal
1. Disconnect the negative (-) battery terminal. 2. Remove the auto light sensor (A) from crash pad upper side by using screw (-) driver. ...

See also:

Tie-down hooks (for flatbed towing)
CAUTION Do not use the tie-down hooks for towing purposes. The hooks are designed ONLY for transport tie-down. If the tie-down hooks are used for towing, the tie-down hooks will be damaged ...

Changing the engine oil and filter
Have engine oil and filter changed by an authorized Kia dealer according to the Maintenance Schedule at the beginning of this section. WARNING Used engine oil may cause irritation or cancer ...

Power brakes
Your vehicle has power-assisted brakes that adjust automatically through normal usage. In the event that the power-assisted brakes lose power because of a stalled engine or some other reason, you ...

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