Intake Air Temperature (IAT) Sensor Inspection

Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [LF, L5] .)
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

RESISTANCE CHART

Ambient temperature (°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 Terminals

Courtesy of MAZDA MOTORS CORP.