Hyundai Sonata: Theft-alarm system

This system is designed to provide protection from unauthorized entry into the vehicle. This system is operated in three stages: the first is the "Armed" stage, the second is the "Theft-alarm" stage, and the third is the "Disarmed" stage. If triggered, the system provides an audible alarm with blinking of the hazard warning lights.
Battery replacement
The transmitter uses a 3 volt lithium battery which will normally last for several
years. When replacement is necessary, use the following procedure.
1. Insert a slim tool into the slot and gen ...
Armed stage
Using the smart key
Park the vehicle and stop the engine. Arm the system as described below.
1.Turn off the engine.
2.Make sure that all doors, the engine hood and trunk lid are closed and latched. ...
See also:
Operating door locks from inside the vehicle
With the door lock button
To unlock a door, push the door lock button (1) to the “Unlock” position.
The red mark (2) on the button will be visible.
To lock a door, push the door lock bu ...
Transaxle Control Module (TCM). Schematic Diagrams
1. TCM Connector and Terminal Function
2. TCM Terminal Function
Connector [CHG-AG]
Pin
Description
Pin
Description
1
& ...
Hands Free Switch. Repair procedures
Inspection
1.
Check the hands free remote control switch for resistance between
No.3 and No.4 terminals in each switch position.
...
