Kia Rio: Auto Light Sensor 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 Switch Inspection

Operate the auto light switch, then check for continuity between terminals of multi-function switch connector. ...

Auto Light Sensor Removal

1. Disconnect the negative (-) battery terminal. 2. Remove the photo & auto light sensor (A) from crash pad upper side by using screw ( ...

See also:

Specifications
Battery [Non-ISG type] Item Specification Model type CMF45L-BCI Capacity [20HR/5HR] (AH) 45/36 Cold Cranking Amperage (A) ...

Inside rearview mirror
Adjust the rearview mirror so that the center view through the rear window is seen. Make this adjustment before you start driving. Do not place objects in the rear seat which would interfere with y ...

ECM Terminal And Input/Output signal [M/T]
ECM Terminal Function (M/T) Connector [EGGM-AG] Pin No. Description Connected to 1 Injector (Cylinder #3) [High] control output ...