Brake System

Front Wheel Speed Sensor

9steps
~54min
2/5difficulty
0102030405029.422N·mlb·ft
Tightening torque found on this page
Done 0 of 9

Components and Component Location

Components

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

Repair Procedures

Removal and Installation

  1. Disconnect the negative (-) battery cable.

  2. Remove the front wheel and tire.

    (See Suspension System — Wheel)

  3. Remove the front wheel guard.

    (Refer to Body - "Front Wheel Guard")

  4. Disconnect the front wheel speed sensor connector (A), then remove the retaining clip (B).

  5. Remove the bolt (A) of the front wheel speed sensor cable bracket.

    Tightening torque: 19.6–29 N·m

  6. Loosen the bolt and disconnect the front wheel speed sensor (A).

    Tightening torque: 6.9–10.8 N·m

  7. Install in the reverse order of removal.

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.