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
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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:
Rail Pressure Sensor (RPS). Troubleshooting
Signal Waveform
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Positive Crankcase Ventilation (PCV) Valve. Description and Operation
Operation Principle
...
Fuel Pressure Control Valve. Schematic Diagrams
Circuit Diagram
...
