Resistance Inspection: Notes
- Disconnect the MAF/IAT sensor connector.
- Verify that the resistance between MAF sensor terminals D and E is as indicated in the table while blowing hot air gradually into the IAT sensor part built into the MAF sensor.
- If the monitor item condition/specification (reference) is not within the specification, even though the resistance is within the specification, perform the "CIRCUIT OPEN/SHORT INSPECTION ".
- If not within the specification, replace the MAF/IAT sensor. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION .)
IAT SENSOR RESISTANCE SPECIFICATION
| Air temperature (°C {°F}) | Resistance (kilohm) |
|---|---|
| -20 {-4} | 13.6-18.4 |
| 20 {68} | 2.21-2.69 |
| 60 {140} | 0.493-0.667 |