Intake Air Temperature (IAT) Sensor

Sensor is located in intake runner. Sensor requires a 5-volt reference signal during engine operation. With sensor disconnected, sensor may be checked by measuring resistance between sensor terminals.
NOTE: Engine Coolant Temperature (ECT) sensor and IAT sensor terminal connectors are identical. Ensure testing is done on proper component.
For specifications, see SENSOR RANGE CHARTS article in the ENGINE PERFORMANCE section. For additional testing information and circuit testing of sensor, see CIRCUIT TEST DA in appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE section.