Hyundai Ioniq: ESP(Electronic Stability Program) System / Rear Wheel Speed Sensor. Repair procedures

Hyundai Ioniq (AE) 2017-2024 Service Manual / Brake System / ESP(Electronic Stability Program) System / Rear Wheel Speed Sensor. Repair procedures

Removal
1.
Loosen the wheel nuts slightly.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the front wheel and tire (A) from the rear 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 rear wheel and tire (A).
3.
Disconnect the rear wheel speed sensor connector (A).

4.
Loosen the mounting bolts (A) and then remove the hub bearing.
Tightening torque :
88.2 - 107.8 N.m (9.0 - 11.0 kgf.m, 65.0 - 79.5 lb-ft)

5.
Installation in the reverse of removal.
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

    Rear Wheel Speed Sensor. Components and components location

    C..

    ESP OFF Switch. Description and operation

    D..

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    Categories

    Rear Seats

    Folding the rear seat

    The rear seatbacks can be folded to facilitate carrying long items or to increase the luggage capacity of the vehicle.

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