P0110 — Intake Air Temperature Sensor Circuit Malfunction
Category: Powertrain Severity: Low
Updated:
DTC code P0110 means: Intake Air Temperature Sensor Circuit Malfunction. It falls under the "Powertrain" category, with an estimated severity of Low. Common causes include failed IAT sensor (often built into the MAF), loose connector and damaged wiring; it's worth confirming the diagnosis before replacing parts.
Possible causes
- Failed IAT sensor (often built into the MAF)
- Loose connector
- Damaged wiring
- Corroded terminals
Symptoms
- Check engine light
- Slightly worse cold starts
- Slightly higher fuel use
How to diagnose it step by step
- Read IAT on the scan tool with a cold engine.
- Check the connector.
- Measure sensor resistance.
- Replace the sensor or the MAF if integrated.
How to fix it
Compare IAT with ambient temperature on a cold engine: they should match. If it reads -40 °F/°C or a fixed value, check the connector and sensor.
Estimated repair cost
IAT sensor: $15–70. If built into the MAF: $100–300.
Frequently asked questions
What does DTC code P0110 mean?
Intake Air Temperature Sensor Circuit Malfunction.
Is code P0110 serious?
Severity Low. Usually a minor fault; check the causes listed.
Can I keep driving with code P0110?
Yes, it is safe to drive.
Related codes
P0112 P0113 P0115 P0116 P0117 P0108 P0118 P0107 P0106 P0103
Refine by car make
🛒 Buy mass air flow sensor (MAF) at Autodoc (affiliate link)