Intake Air Temperature (IAT) Sensor Inspection

Disconnect the negative battery cable.
Disconnect the MAF/IAT sensor connector.
Measure the resistance between the MAF/IAT sensor terminals D and E using an ohmmeter.
- If not as specified, replace the MAF/IAT sensor.
  (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)

IAT sensor Specification

IAT RESISTANCE CHART

IAT (°C {°F})	Resistance (kilohm)
20{68}	2.21-2.69
60{140}	0.493-0.667

Fig 1: Identifying Intake Air Temperature (IAT) Sensor Connector End View

Courtesy of MAZDA MOTORS CORP.