IAT Sensor Inspection

2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION IAT Sensor Inspection
WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove MAF & IAT sensor. See MASS AIR FLOW (MAF) & Intake Air Temperature (IAT) Sensor Removal and Installation 
  2. Check sensor O-ring (1) for damage and deterioration. If faulty condition is found, replace MAF & IAT sensor.
  3. Measure resistance between sensor terminals "1" and "2" while blowing hot air to temperature sensing part (2) of MAF & IAT sensor (3) using hot air drier (4).

    If measured resistance is out of specified value, replace MAF & IAT sensor.

    Intake air temperature sensor resistance 

    -20 °C (-4 °F): 13.6 - 18.4 kΩ 

    20 °C (68 °F): 2.21 - 2.69 kΩ 

    60 °C (140 °F): 0.493 - 0.667 kΩ 

    Fig 1: Checking Intake Air Temperature Sensor Resistance
    G06868214Courtesy of SUZUKI OF AMERICA CORP.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.