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Common codes
P0420P0300P0171P0455P0442P0128P0401P0113

P0110: Intake air temperature sensor circuit malfunction

You can keep driving. Get it checked when convenient.

Can I drive with P0110?

Yes, you can keep driving. Minor sensor fault; the computer substitutes a default temperature and driving is safe.

What does P0110 mean?

P0110 stands for Intake Air Temperature Circuit Malfunction.

Symptoms you may notice

  • Check engine light illuminated
  • Mild hesitation during cold engine startup
  • Slight drop in highway fuel economy in extreme cold or heat

How much does it cost to fix?

Repair costs for code P0110 depend on the specific underlying root cause, ranging from simple DIY checks to component replacement. The table below lists the most common causes and rough price ranges in USD:

  • Unplugged or loose IAT sensor plug
    $10-$30 common
  • Dirty or oxidized sensor electrical terminals
    $15-$40 possible
  • Failed intake air temperature thermistor
    $30-$90 possible
  • Broken wiring harness in air cleaner housing
    $40-$100 rare

What to do next

  1. Check if the sensor connector on the air intake tube is plugged in.
  2. Clean the connector pins with electrical cleaner spray.
  3. Test the resistance of the IAT sensor with a multimeter against factory specs.
Last updated: October 2026

Related codes

P0111 P0112 P0113 P0100
General guidance only, not a professional diagnosis. If the check-engine light is flashing, or the car is running rough, overheating or losing power, stop driving and get help.

About this code

Code P0110 is triggered when the Intake Air Temperature (IAT) sensor circuit has an electrical irregularity. The IAT sensor helps the ECU determine air density for precise fuel trimming. When faulty, the ECU assumes a safe ambient temperature (typically 68°F / 20°C). You can continue driving without immediate danger, but fuel economy will drop slightly in extreme weather.