Hyundai Tucson: Introduction of Quick Brake Warning System (ESS)
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Brake System / ESC (Electronic Stability Control) System / Introduction of Quick Brake Warning System (ESS)
Description
In case of quick brake by driver, the brake lamp or turn signal is blinked to warn against the vehicle at rear.

- Basic function (Blinking the brake lamp/emergency lamp)
- Operation condition : In case of quick brake or operation of ABS above in a certain speed
- Releasing condition : In case of stopping the quick brake or releasing the ABS operation
- Additional function (Blinking the turn signal)
- Operation condition : In case of quick brake in low speed
- Releasing condition : Releasing at the start of driving

System Configuration

ESS Circuit Diagram

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General Information
Troubleshooting
Specifications
Tightening Torque
Special Service Tools
Fender
Component Location
Fender assembly
Replacement
WARNING
When removing the fender, wrap protective tape around a
screwdriver or remover not to damage
components
Put on gloves to prevent hand injuries
Remove the front bumper
SEE MORE:
48V Battery System - Removal
Turn the ignition switch OFF and disconnect the battery (-) terminal.
Remove the luggage board (A).
Disconnect the BMS ECU extension wiring harness connector (A).
Disconnect the inverter power cables (A).
Tightening torque
Transmission Control Module (TCM) Inspection Procedure
Inspection
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
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual