Engine/Fuel Control System

Ambient Air Temperature Sensor (ATS) Repair Procedures

8steps
~48min
2/5difficulty
Done 0 of 8

Inspection

  1. Turn the ignition switch to the OFF position.
  2. Disconnect the ATS connector.
  3. Measure the resistance between ATS terminals 1 and 2 [B1/S1].
  4. Check that the resistance is within specification.
    Temperature [°C (°F)] RESISTANCE (kΩ)
    -40 (-40) 811,1~956,8
    -20 (-4) 255,6~287,7
    0 (32) 91,5~98,8
    20 (68) 36,6~38,0
    30 (86) 23,8~24,7
    40 (104) 15,7~16,6
    50 (122) 10,6~11,3
    60 (140) 7,2~7,9
    80 (176) 3,6~4,0

DEPOSIT

  1. Turn the ignition switch to the OFF position and disconnect the negative (-) battery cable.
  2. Remove the front lower engine compartment cover (A).
  3. Disconnect the ambient air temperature sensor connector (A).
  4. Remove the ambient air temperature sensor (B).

REMEDY

  1. To install, perform the removal procedure in reverse order.

Test yourself

A quick Hyundai i20 quiz: every answer comes with an explanation and a link to the manual page.