IAT Sensor Resistance Inspection
- Disconnect the MAF/IAT sensor connector.
- Measure the resistance between MAF/IAT sensor terminals A and F using an ohmmeter.
- If not as specified, replace the MAF/IAT sensor.
- If the IAT sensor is okay, but the IAT PID is out of specification, perform the "IAT SENSOR CIRCUIT OPEN/SHORT INSPECTION ".
IAT SENSOR RESISTANCE SPECIFICATION
| Ambient temperature (°C {°F}) | Resistance (kilohms) |
|---|---|
| 10 {50} | 3.3-4.1 |
| 20 {68} | 2.2-2.7 |
| 30 {86} | 1.4-1.9 |