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

Removal
1.
Remove the front 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 front 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 front wheel guard .
4.
Remove the front wheel speed sensor cable mounting bolt.
5.
Disconnect the front wheel speed sensor connector, then remove the front wheel speed sensor.
6.
Installation is 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 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

Front Wheel Speed Sensor Components and Components Location

Components 1. Front wheel speed sensor connector2. Front wheel speed sensor ...

Rear Wheel Speed Sensor Components and Components Location

Components 1. Rear wheel speed sensor 2. Rear wheel speed sensor cable ...

Other information:

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


Replaccement Seat Assembly Replacement 1. Remove the seat track mounting cover. 2. After loosening the seat assembly mounting bolts, remove the seat assembly (A). Tightening torque : 49.0 ~ 63.7N.m (5.0 ~ 6.5kgf.m, 36.2~47.0lb-ft) 3. Disconnect the power seat (A) and airbag (B) connectors. [Driver''s] ...

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


Inspection Check it by the procedure below to see if the function of the ECM is normal. 1. Turn the ignition key to the "ON" position. 2. Cover the front sensor to stop functioning. 3. Shine a light at the rear sensor. 4. The ECM should be darkened as soon as the rear sensor detects the light.   ...

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