P0110: Intake Air Temperature Sensor 1 Circuit Malfunction
Short answer: P0110 means “Intake Air Temperature Sensor 1 Circuit Malfunction”. It is a standard OBD-II code, so the basic meaning is the same on every car. Below is what it means on each of the 8 cars we cover, with a link to the full page for each car.
Standard OBD-II code Same meaning on all cars (SAE J2012).
P0110 on each car
| Car | Meaning on this car | Confidence |
|---|---|---|
| Toyota Passo (1st gen) | Intake Air Temperature (Iat) Sensor Circuit Malfunction (P0110/43) | high |
| Toyota Vitz (1st gen) | Intake air temperature sensor circuit (P0110/24) | medium |
| Toyota Corolla (9th gen, E120) | INTAKE AIR TEMP. CIRCUIT MALFUNCTION (P0110/24) | high |
| Toyota Corolla (9th gen, E120) | INTAKE AIR TEMP. CIRCUIT MALFUNCTION (P0110/24) | high |
| Toyota Corolla (9th gen, E120) | INTAKE AIR TEMP. CIRCUIT MALFUNCTION (P0110/24) | high |
| Toyota Corolla (11th gen, E170) | Intake Air Temperature Sensor 1 Circuit Malfunction | medium |
| Toyota Corolla (10th gen, E140) | Intake Air Temperature Sensor 1 Circuit Malfunction | medium |
| Honda City (5th gen, GM2) | Intake Air Temperature Sensor 1 Circuit Malfunction | medium |
| Honda Civic (10th gen, FC) | Intake Air Temperature Sensor 1 Circuit Malfunction | medium |
| Suzuki Wagon R (Pakistan, K10B) | Intake Air Temperature Sensor 1 Circuit Malfunction | medium |
Symptoms
- Check engine light on
Likely causes
- Potential causes of the P0110 DTC include
- IAT sensor shifted out of airflow
- Bad IAT sensor
- Shorted to ground or open on signal circuit to IAT
- Open in ground circuit to IAT
- Poor connection at IAT (backed out terminals, broken connector locks, etc.)
- Bad PCM
What to check, in order
- Read the code and freeze-frame data with an OBD-II scanner
- Check the connector and wiring of the part named in the code
- Test the part with scanner live data or a multimeter, using the values in the repair manual
- Fix the cause, clear the code and test-drive
Causes and checks above are the general meaning. The exact test steps and values differ by car: open your car’s page.