Kia Sorento: 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 IPM 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:

Telemetics Unit (TMU) Inspection
1. After replacing the TMU unit, access Dealer Engineering Mode in head unit. (Refer to MTS system - "TMU Dealer Engineering Mode") 2 ...

Important Safety Notice
Proper service methods and repair procedures are essential for safe, reliable operation of all motor vehicles as well as personal safety of the operator. The service procedures and descriptions in ...

Engine compartment
1. Engine coolant reservoir 2. Engine oil filler cap 3. Brake fluid reservoir 4. Air cleaner 5. Fuse box 6. Positive battery terminal 7. Negative battery terminal 8. Windshield washer fluid r ...