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Hyundai Tucson: Emergency Call System

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Body Electrical System / Emergency Call System

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

  1. 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.
  1. 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.

READ NEXT:

 Configuration of eCall Controller

Input button & Indicator SOS button : Press the button to place a call to the call center. 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

 Inspection with Diagnostic Tools

In the eCall system, failure can be quickly diagnosed by using the vehicle diagnostic system. The diagnostic system provides the following information. 1) Self diagnosis : Checking failure and code number (DTC) 2) Current data : Checking the s

 eCall Parameter Download

eCall Parameter Download is used to change the parameter value of the eCall law in Europe. Turn the ignition switch OFF. Connect the diagnostic tools. Turn the ignition switch ON without the engine running. Select the "Car Model"

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 Piston Rings

Inspect the piston ring side clearance. Using a feeler gauge, measure the clearance between new piston ring and the wall of ring groove. Piston ring groove width dimension of piston No.1 ring : 1.230 - 1.250 mm (0.0484 - 0.0492 in.) No.2 r

 Transmission Control Module (TCM) Inspection Procedure

Inspecting TCM ground circuit: Measure the resistance between the TCM and chassis ground. (Check the terminal connected to the chassis ground while using the back of the harness connector as the base point for TCM.) Normal reading (re

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