IAT Sensor Resistance
WARNING: This page is about a different car, the 2002 Lexus SC 430, 2002 Lexus LS 430, 2002 Lexus IS 300, 2002 Lexus GS 430, and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
IAT sensor is part of Mass Airflow (MAF) sensor. Turn ignition off. Disconnect MAF sensor connector. Measure resistance between MAF sensor terminals THA and E2. See Fig 1. Replace MAF sensor if resistance is not as specified. See INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE table.
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE
| Ambient Temperature °F (°C) | Ohms |
|---|---|
| -4 (-20) | 13,600-18,400 |
| 68 (20) | 2210-2690 |
| 140 (60) | 493-667 |