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:
Battery. Description and Operation
Description
1.
The maintenance-free battery is, as the name implies, totally
maintenance free and has no removable battery cell caps.
2.
W ...
Active ECO operation
Active ECO helps improve fuel efficiency by controlling the engine and transaxle.
But fuel-efficiency can be changed by the driver's driving habits and road conditions.
When the Active E ...
Instrument panel illumination
When the vehicle’s parking lights or headlights are on, push the illumination
control switch left or right to adjust the brightness of the instrument panel illumination.
The illumination ...
