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Resistance Inspection

NOTE:

Perform the following inspection only when directed.

Disconnect the MAF/IAT sensor.
Measure the resistance between the MAF/IAT sensor terminals D and E using a tester.
- If not as specified, replace the MAF/IAT sensor. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION ).
- If the MAF/IAT sensor is normal, but the PID is out of specification, perform the "Circuit Open/Short Inspection".
  
  Fig 1: Identifying Intake Air Temperature (IAT) Sensor
  Courtesy of MAZDA MOTORS CORP.

Specification

TEMPERATURE AND RESISTANCE CHART

Ambient temperature (°C {°F})	Resistance (kilohm)
-20 {-4}	13.6-18.4
20 {68}	2.21-2.69
60 {140}	0.493-0.667

Fig 2: Intake Air Temperature (IAT) Sensor Temperature And Resistance Graph

G04325252

Courtesy of MAZDA MOTORS CORP.