Resistance Inspection: Notes

WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the MAF/IAT sensor connector.
Verify that the resistance between MAF sensor terminals D and E is as indicated in IAT SENSOR RESISTANCE while blowing hot air gradually into the IAT sensor part built into the MAF sensor.
- If the monitor item condition/specification (reference) is not within the specification, even though the resistance is within the specification, perform the "CIRCUIT OPEN/SHORT INSPECTION ".
- If not within the specification, replace the MAF/IAT sensor. (See MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REMOVAL/INSTALLATION ).
  
  Fig 1: Inspecting Resistance Between MAF Sensor Terminals D & E
  Courtesy of MAZDA MOTORS CORP.

IAT SENSOR RESISTANCE

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