Hyundai Elantra: ABS(Anti-Lock Brake 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 rear 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 rear wheel and tire (A).
3.
Disconnect the rear wheel speed sensor connector(A).

4.
Loosen the mounting bolt and then remove the wheel speed sensor cable bracket (A) and (B).

Tightening torque :
A : 8.8 ~ 13.7 N.m (0.9 ~ 1.4 kgf.m, 6.5 ~ 10.1 lb-ft)
B : 7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

5.
Remove the rear seat back.
(Refer to Body - "Seat")
6.
Disconnect the rear wheel speed sensor connector (A), and than remove the rear wheel speed sensor.

7.
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 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. Front wheel speed sensor2. Front wheel speed sensor cable ...

ESC(Electronic Stability Control) System
...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Seat Belt Restraint System
Seat Belt-Driver's 3-point system with emergency locking retractor To fasten your seat belt: Pull the seat belt out of the retractor and insert the metal tab (1) into the buckle (2). There will be an audible "click" when the tab locks into the buckle. You should place the lap ...

Hyundai Elantra AD (2016-2020) Owners Manual: Key ignition switch positions
LOCK To turn the ignition switch to the LOCK position, put the key in at the ACC position and turn the key towards the LOCK position. The ignition key can be removed in the LOCK position. (The shift lever must be in the P (Park) position for Intelligent Variable Transmission (IVT)/dual clutch ...

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