Resistance inspection

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
2. Disconnect the MAF sensor/IAT sensor No. 1 connector.
3. Measure the resistance between MAF sensor/IAT sensor No. 1 terminals A and B.

Fig 1: MAF Sensor/IAT Sensor No 1 Connector Terminals

Courtesy of MAZDA MOTORS CORP.

• If not as specified, replace the MAF sensor/IAT sensor No. 1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION .)

Specification 

Fig 2: MAF Sensor/IAT Sensor No 1 Temperature Graph

Courtesy of MAZDA MOTORS CORP.