Engine Control System/Fuel System

Ambient Air Temperature Sensor (ATS) Repair Procedures

7steps
~42min
2/5difficulty
Done 0 of 7

Inspection

  1. Turn the ignition off.
  2. Disconnect the ATS connector.
  3. Measure the resistance between terminals 1 and 2 of the ATS [B1/S1].
  4. Make sure the resistance is within specification.

    Specification: Refer to "Specifications"

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery cable.
  2. Remove the front lower undercover. (Refer to Engine Mechanical System - "Engine and Transaxle Assembly")
  3. Disconnect the connector, then remove the ambient air temperature sensor (A).

Installation

  • Note that internal damage may occur if the component is dropped. If the component has been dropped, inspect it before installation.
  1. Install in the reverse order of removal.

Test yourself

A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.