Hyundai Elantra: Emergency Call System / Description and operation

Hyundai Elantra (CN7) 2021-2024 Service Manual / Body Electrical System / Emergency Call System / Description and operation

Description

Emergency Call (eCall)

When an accident occurs or the user's request is detected, it notifies the call center of the vehicle status using the wireless network so that the center can provide necessary emergency service.

1. Emergency Call
2. Radio Communication network

3. Public-Safety Answering Point (PSAP)
4. Emergency rescue service

eCall Function

Automatic notification function : It detects airbag signal that is triggered by accident and automatically notifies the call center of the accident.

(1)	An accident occurs (condition : IGN ON)

(2)	Collision signal : Sent from the airbag control unit (ACU) to the eCall unit

(3)	Place a call : An emergency call is placed to the most appropriate public-safety answering point (PSAP).

(4)	Transmit MSD : After the call is connected, the Minimum Set of Data (MSD) is transmitted using the in-band communication (technology that transmits data through telephone voice channel).

(5)

Connect to a call center agent, who in turn provides emergency service.

•	The eCall system may not work properly if the vehicle damage is grave or the airbag does not operate due to a minor accident.

Manual notification function : The driver decides to operate the SOS button to notify the call center of the accident manually.

(1)	The driver decides to operate the SOS button.

(2)	Place a call : An emergency call is placed to the most appropriate PSAP.

(3)	Transmit MSD : After the call is connected, the MSD is transmitted using the in-band communication (technology that transmits data through telephone voice channel).

(4)

Connect to a call center agent, who in turn provides emergency service.

•	If you want to cancel the connection attempt while placing a call by pressing the SOS button, press the button again.

Configuration of eCall Controller

Input button & Indicator

SOS button : Press the button to place a call to the call center.

SOS TECT button : Press the button for 10 seconds or more to perform the test mode and reset the eCall system.

LED indicator lamp : The red and green LEDs turn on for 3 seconds after the ACC is on and stay turned off in standby until the key is turned off.

The red LED turns on when there is a problem with the eCall system.

The green LED turns on when the eCall system is operating normally.

Emergency Call System

Components and components location

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