Emergency Warning System

Description and Operation

Description

Emergency Stop Signal (ESS) System: When the driver brakes suddenly, the stop lamp or turn signal flashes to warn the vehicle behind.

1. 1
   Main Function (Brake Lamp / Hazard Lamp Flashing)

   • Operating conditions: When sudden braking or ABS activation occurs above a certain speed.
   • Cancellation conditions: When sudden braking stops or ABS operation ends.
2. 2
   Additional Function (Turn Signal Flashing)

   • Operating conditions: During sudden braking at low speed.
   • Release conditions: Released when the vehicle starts moving.

   

   

   

System Configuration ESS Circuit Diagram

Repair Procedures

Inspection

The AEB ON/OFF switch can be set in the USM (User Setting Menu); the factory default is ON. When the ignition is turned on, the default ON state is maintained and does not reflect the driver's setting at the next ignition cycle. If the ESC function is turned off, the AEB function is disabled.

• AEB ON/OFF is set in USM (User Setting Mode) and is ON by default.
• While IGN is ON, it remains ON; however, driver settings do not take effect the next time IGN is turned ON.
• When ESC is OFF, AEB is also OFF.

Removal

AEB Radar

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery cable.
2. 2
   Remove the front bumper cover. (Refer to Body - "Front Bumper Cover")
3. 3
   Loosen the AEB unit mounting bolts and remove the AEB unit.

Installation

1. 1
   Installation is the reverse of removal.
2. 2
   Perform AEB variant coding.
3. 3
   Perform AEB radar alignment.