Hyundai Sonata: Rear Wheel Speed Sensor Repair procedures - ESP(Electronic Stability Program) System - Brake SystemHyundai Sonata: Rear Wheel Speed Sensor Repair procedures

Removal
1.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the wheel cap(A).

   
Be careful not to damage to the wheel cap(A) when removing the it.
3.
Remove the front wheel and tire (A) from front hub.

Tightening torque:
88.2 ~ 107.8 N.m (9.0 ~ 11.0 kgf.m, 65.0 ~ 79.5 lb-ft)

   
Be careful not to damage to the hub bolts when removing the front wheel and tire (A).
4.
Remove the rear wheel speed sensor from the hub assembly.

5.
Loosen the wheel speed sensor cable bracket nut(A), bolt(B) and then remove the cable.

Tightening torque:
A : 6.8 ~ 10.7 N.m (0.7 ~ 1.1 kgf.m, 5.0 ~ 7.9 lb-ft)
B : 8.8 ~ 13.7 N.m (0.9 ~ 1.4 kgf.m, 6.5 ~ 10.1 lb-ft)

6.
Remove the rear seat back.
(Refer to Body - "Seat & Power Seat")
7.
Disconnect the connector then remove the rear wheel speed sensor.
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 100 ? 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 ~ 2,500Hz

    Rear Wheel Speed Sensor Components and Components Location
    Components 1. Rear wheel speed sensor2. Rear wheel speed sensor cable ...

    See also:

    Photo Sensor Description and Operation
    Description The photo sensor is located at the center of the defrost nozzles. The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light r ...

    Illuminated ignition switch
    Whenever a front door is opened, the ignition switch will be illuminated for your convenience, provided the ignition switch is not in the ON position. The light will go off immediately when th ...

    Phone
    Before using the Bluetooth® Wireless Technology enabled phone features In order to use Bluetooth® Wireless Technology phone, you must first pair and connect the Bluetooth® Wireless Technolog ...