Hyundai Santa Fe (TM): ESP(Electronic Stability Program) System / Emergency Signal System. Description and operation

Description
Introduction of quick brake warning system (ESS)
In case of quick brake by driver, the brake lamp or turn signal is blinked to warn against the vehicle at rear.

1.
Basic function (Blinking the brake lamp/emergency lamp)
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Operation condition : In case of quick brake or operation of ABS above in a certain speed
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Releasing condition : In case of stopping the quick brake or releasing the ABS operation
2.
Additional function (Blinking the turn signal)
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Operation condition : In case of quick brake in low speed
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Releasing condition : Releasing at the start of driving

System Configuration

ESS Circuit Diagram

    Removal    • Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift.

    Description The yaw rate and G sensor is included inside the air bag control module (SRSCM). When the vehicle is turning with respect to a vertical axis the yaw rate sensor detects the yaw rate electroniclly by the vibration change of plate fork inside the yaw rate sensor.

    Other information:

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Photo Sensor. Repair procedures

    Inspection 1. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 2. The voltage will rise with higher intensive light and reduce with lower intensive light.

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Ambient Temperature Sensor. Repair procedures

    Inspection 1. Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature. 1. Ambient Sensor (+) 2.

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