Kia Optima DL3 Quiz
Brake System

Rear Wheel Speed Sensor

In this manual: Brake System
General Information — 8Advanced Driver Assistance System (ADAS) — 21Maintenance — 27Engine Mechanical System — 45Engine Electrical System — 11Emission Control System — 11Engine Control System/Fuel System — 25Automatic Transmission — 20Drive Shaft and Axle — 7Suspension System — 22Steering — 7Restraints — 11Brake System — 22Body (Interior and Exterior) — 116Body Electrical System — 90Heating, Ventilation, and Air Conditioning — 32
15steps
~100min
5/5difficulty
2special tools
04080120160200107.980N·mlb·ft
Tightening torque found on this page
Done 0 of 15

Components and Component Location

Components

1. Rear Wheel Speed Sensor
2. Rear wheel speed sensor connector

Repair Procedures

Removal

  1. Disconnect the negative (-) battery cable.

  2. Remove the rear wheel and tire.

    (See Suspension System — Wheel)

  3. Remove the rear brake disc.

    (Refer to Brake System - "Rear Brake Disc")

  4. Disconnect the rear wheel speed sensor connector (A).

  5. Remove the hub assembly and dust cover (A) after loosening the mounting bolts.

    Tightening torque: 88.3–108 N·m

Replacement

Rear Wheel Speed Sensor Cap

  1. Remove the rear wheel hub bearing assembly.

    (Refer to Drive Shaft and Axle - "Rear Axle Assembly")

  2. Secure the rear wheel hub bearing assembly (A) in a vise.

  3. Check the direction of the sensor cover (A).

  4. Remove the sensor cover by tapping the gap between the sensor cover and the hub bearing assembly with a scraper (A).

  5. Check the tone wheel or encoder (A) for distortion or damage.

  6. Position the sensor cover in the same direction as the sensor cover connector (A) was positioned before removal.

  7. Install the sensor cover (A) using the Special Service Tool (09527-AL400).

  8. Install the rear wheel hub bearing assembly.

    (Refer to Drive Shaft and Axle - "Rear Axle Assembly")

Inspection

  1. Measure the output voltage between the wheel speed sensor terminal and body ground.

  2. Compare the change in the wheel speed sensor output voltage with the normal output voltage change, as shown below.

    V_low: 0.59–0.84 V

    V_high: 1.18–1.68 V

    Frequency range: 1–2,500 Hz

Installation

  1. Install in the reverse order of removal.

Test yourself

A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.