IAT sensor inspection
CAUTION:
- When servicing MAF & IAT sensor, be sure to observe the following items.
- Do not disassemble MAF & IAT sensor.
- Do not expose MAF & IAT sensor to any shock. If it has been dropped, it should be replaced.
- Do not clean MAF & IAT sensor.
- Do not blow compressed air by using air gun or the like.
- Do not put finger or any other object into MAF & IAT sensor.
- Do not heat MAF & IAT sensor more than 100 °C (212 °F). Otherwise, MAF & IAT sensor will be damaged.
- Remove MAF & IAT sensor. See MASS AIR FLOW (MAF) & INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL AND INSTALLATION .
- Check sensor O-ring (1) for damage and deterioration. Replace as necessary.
- Measure resistance between sensor terminals while blowing hot air to temperature sensing part (2) of MAF & IAT sensor (3) using hot air drier (4).
If faulty condition is found, replace MAF & IAT sensor. See MASS AIR FLOW (MAF) & INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL AND INSTALLATION .
Intake air temperature sensor resistance
-20 °C (-4 °F): 12.6 - 15.1 kΩ
20 °C (68 °F): 2.29 - 2.55 kΩ
80 °C (176 °F): 0.312 - 0.370 kΩ
Courtesy of SUZUKI OF AMERICA CORP.