Resistance Inspection

Remove the battery cover.
Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] )
Disconnect the MAF/IAT sensor connector.
Verify that the resistance between MAF/IAT sensor terminals D and E is within the specification.
- If the monitor item status/specification (reference) is not within the specification, even though the IAT sensor 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 [LF] )

Fig 1: Identifying MAF/IAT Sensor Connector

Courtesy of MAZDA MOTORS CORP.

STANDARD RESISTANCE SPECIFICATION

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