Hyundai Sonata: Immobilizer System - Body Electrical SystemHyundai Sonata: Immobilizer System

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 ...

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Scheduled maintenance service
Follow Normal Maintenance Schedule if the vehicle is usually operated where none of the following conditions apply. If any of the following conditions apply, follow Maintenance Under Severe Usage ...

Knock Sensor (KS). Repair procedures
Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold (Refer to “Intake ...

Seat belt warning (for driver’s seat)
The driver's seat belt warning light and chime will activate to the following table when the ignition switch is in "ON" position. *1 Warning pattern repeats 11 times with an inter ...