Intake Air Temperature Sensor
Disconnect sensor connector. Using an ohmmeter, measure resistance between Intake Air Temperature (IAT) sensor terminals. See INTAKE AIR TEMPERATURE SENSOR SPECIFICATIONS (ME7) and INTAKE AIR TEMPERATURE SENSOR SPECIFICATIONS (DENSO) table. If resistance is not as specified, replace sensor.
INTAKE AIR TEMPERATURE SENSOR SPECIFICATIONS (ME7)
| Temperature - °F (°C) | Voltage | Resistance - Ohms |
|---|---|---|
| 0 (0) | 4.30 | 15,931 |
| 50 (10) | 3.94 | 9672 |
| 68 (20) | 3.50 | 6068 |
| 86 (30) | 3.0 | 3923 |
| 104 (40) | 2.5 | 2603 |
INTAKE AIR TEMPERATURE SENSOR SPECIFICATIONS (DENSO)
| Temperature - °F (°C) | Voltage | Resistance - Ohms |
|---|---|---|
| 32 (0) | 1.55 | 6000 |
| 50 (10) | 2.01 | 4000 |
| 68 (20) | 2.62 | 2450 |
| 77 (25) | 2.13 | 2000 |
| 86 (30) | 2.00 | 1800 |