Kia Optima Hybrid: ESC(Electronic Stability Control) System / Rear Wheel Speed Sensor Repair procedures

Removal
1.
Remove the rear wheel and tire.

Tightening torque:
88.3 ~ 107.9 N.m (9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft)

2.
Remove the rear wheel speed sensor mounting bolt (A).

Tightening torque:
6.9 ~ 10.8 N.m (0.7 ~ 1.1 kgf.m, 5.1 ~ 8.0 lb-ft)

3.
Remove the rear seat back. (Refer to the Body group - Seat)
4.
Disconnect the rear wheel speed sensor connector.
5.
Installation is the reverse of removal.
   
Install the rear sensor after lubricating the O-ring of sensor with the assembly fluid(RAREMAX AF-1)
When inserting the sensor, take care the O-ring not to be damaged.
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 sensor 2. Rear wheel speed sensor cable ...

Yaw-rate and Lateral G Sensor Description and Operation

Description When the vehicle is turning with respect to a vertical axis the yaw rate sensor detects the yaw rate electronically by the vibration change of plate fork inside the yaw rate sensor. If yaw ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Relay Box (Passenger Compartment) Repair procedures


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Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Wheel Repair procedures


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