Hyundai Sonata: Auto Light Switch. Repair procedures
Inspection
Lighting Switch Inspection
With the multi function switch in each position, make sure that continuity
exists between the terminals below. If continuity is not as specified, replace
the multi-function switch.

Lighting Switch (Auto Light)

Schematic Diagrams
Circuit Diagram
...
Auto Light Sensor. Repair procedures
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 lig ...
See also:
Overhead Console Lamp. Schematic Diagrams
Circuit Diagram
...
Engine Control Module (ECM). Repair procedures
Removal
When replacing the ECM, the vehicle equipped with the immobilizer
must be performed procedure as below.
...
Aux, USB and iPod® port
If your vehicle has an aux and/or USB(universal serial bus) port or iPod port,
you can use an aux port to connect audio devices and a USB port to plug in a USB,
and an iPod port to plug in an ...
