Hyundai Kona: ESP (Electronic Stability Program) System / Front Wheel Speed Sensor Repair procedures

Removal
1.
Turn the ignition switch OFF and then disconnect the negative (-) battery cable.
2.
Loosen the wheel nuts slightly.
Raise the vehicle, and make sure it is securely supported.
3.
Remove the front wheel and tire (A) from front hub.
Tightening torque :
107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft)
  
Be careful not to damage the hub bolts when removing the front wheel and tire (A).

4.
Remove the front wheel guard.
(Refer to Body - "Front Wheel Guard")
5.
Disconnect the front wheel speed sensor connector (A) and then remove the fixing clip (B).

6.
Remove the front wheel speed sensor cable braket bolt (A), (B).
Tightening torque :
6.8 - 10.8 N.m (0.7 - 1.1 kgf.m, 5.0 - 7.9 lb-ft)

7.
Loosen the bolt (A) and then disconnect the front wheel speed sensor.
Tightening torque :
7.8 - 11.7 N.m (0.7 - 1.1 kgf.m, 5.7 - 8.6 lb-ft)

Installation
1.
To install, reverse the removal procedure.
Inspection
1.
Measure the output voltage between the terminal of the wheel speed sensor and the body ground.
  
In order to protect the wheel speed sensor, when measuring output voltage, a 100Ω resister must be used as shown.

2.
Compare the change of the output voltage of the wheel speed sensor to the normal change of the output voltage as shown below.

V_low : 0.59V - 0.84V
V_high : 1.18V - 1.68V
Frequency range : 1 - 2,500 Hz
Front Wheel Speed Sensor Components and components location
Components 1. Front wheel speed sensor 2. Front wheel speed sensor connector ...

Rear Wheel Speed Sensor Components and components location
Components [Tortion beam axle type] 1. Front wheel speed sensor 2. Rear wheel speed sensor cable [Multi link type] ...

Other information:

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Hyundai Kona (OS) 2018-2020 Owners Manual: Mode selection
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