Intake Air Temperature (IAT) Sensor Inspection
NOTE:
- The MAF sensor and IAT sensor cannot be removed as a single unit. When replacing the MAF sensor or IAT sensor, replace it together with the MAF/IAT sensor as a single unit.
- Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI 3.7 V6] .)
- Disconnect the MAF/IAT sensor connector.
- Measure the resistance between MAF/IAT sensor terminals A and F.
- If not within the specification, replace the MAF/IAT sensor. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (SAT) SENSOR REMOVAL/INSTALLATION .)
IAT SENSOR RESISTANCE REFERENCE CHART
| IAT (°C {°F}) | Resistance (kilohm) |
|---|---|
| 10(50} | Approx. 58.75 |
| 20 {68} | Approx. 37.30 |
| 30 {86} | Approx. 24.27 |
| 60 {140} | Approx. 7.70 |
IAT sensor characteristics graph (reference)