Intake Air Temperature Sensor
A malfunction in Intake Air Temperature (IAT) sensor can set DTCs P0111, P0112 or P0113. For additional testing procedures and specifications, see DTC P0111, P0112 or P0113 testing procedure under DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - 2.0L TRACKER or SELF-DIAGNOSTICS - 2.5L TRACKER article. An out-of-calibration IAT sensor may not set a DTC. Use the following procedure to test sensor calibration.
Locate and remove IAT sensor from air cleaner assembly. Using DVOM, measure resistance of IAT sensor at specified temperatures. See INTAKE AIR TEMPERATURE SENSOR RESISTANCE table. If resistance is not within specification, replace IAT sensor.
INTAKE AIR TEMPERATURE SENSOR RESISTANCE (1)
| Temperature - °F (°C) | Ohms | ||
|---|---|---|---|
| 176 (80) | 315 | ||
| 158 (70) | 435 | ||
| 140 (60) | 580 | ||
| 122 (50) | 810 | ||
| 113 (45) | 940 | ||
| 104 (40) | 1150 | ||
| 95 (35) | 1360 | ||
| 86 (30) | 1600 | ||
| 77 (25) | 2000 | ||
| 68 (20) | 2400 | ||
| 59 (15) | 3000 | ||
| 50 (10) | 3600 | ||
| 41 (5) | 4600 | ||
| 32 (0) | 5700 | ||
| 23 (-5) | 7400 | ||
| 14 (-10) | 9800 | ||
| 5 (-15) | 12,700 | ||
| -4 (-20) | 16,000 | ||
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