Hyundai Genesis: ESC(Electronic Stability Control) System / Rear Wheel Speed Sensor Repair procedures

Removal

1.	Turn ignition switch OFF and disconnect the negative (-) battery cable.

2.	Remove the rear wheel and tire (A) from the rear hub. Tightening torque : 88.3 ~ 107.9 N.m (9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft)

3.	Remove the wheel speed sensor bracket bolt & wheel speed sensor (A). Tightening torque: 6.9 ~ 10.8N.m (0.7 ~ 1.1kgf.m, 5.1 ~ 8.0lb-ft)

4.	Install in the reverse order of removal.

Inspection

1.	Measure the output voltage between the terminal of the wheel speed sensor and the body ground. To protect the wheel speed sensor when measuring the output voltage, a 100 ? resister must be used as shown below.

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

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