Air Temperature Sensor ( Ambient / Intake ): Testing and Inspection

INTAKE AIR TEMPERATURE SENSOR
The intake air temperature sensor (IAT Sensor), located on the air cleaner, is a resistor-based sensor to detect the intake air temperature. According to the intake air temperature information from the sensor, the ECM will control the necessary amount of fuel injection.

Circuit Diagram:

Using Hi-Scan:

Harness Inspection Procedures:

SENSOR INSPECTION




1. Measure the voltage between the IAT sensor terminal 1 and 3.
2. If the voltage deviates from the standard value, replace the intake air temperature sensor assembly.