Automatic Transmission

Input Speed Sensor

3steps
~18min
2/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 3

Specifications

Specification

Item Specification
Type Hall Effect Sensor
Current 22 mA (max.)
Output Voltage High: 4.8 V - 5.2 V
Low: Below 0.8

Description and Operation

Description

  • Measures the rotational speed of the input shaft inside the transmission and sends the reading to the TCM.

  • The sensor provides important inputs used in feedback control, torque converter clutch control, shift control, line pressure control, clutch pressure activation control, and sensor malfunction analysis.

Circuit Diagrams

Wiring Diagram

Repair Procedures

Inspection

  1. Check the input speed sensor signal waveform using KDS/GDS.

Low speed

High speed

Removal

  1. Remove the air cleaner.

    (Refer to Engine Mechanical System - "Air Cleaner")

  2. Disconnect the input speed sensor connector (A).

  3. Remove the input speed sensor (A) after loosening the bolt.

    Tightening Torque: 9.8–11.8 N·m

Installation

  1. Install in the reverse order of removal.

Test yourself

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