Resistance inspection

NOTE:

The MAF sensor and IAT sensor No. 1 cannot be removed as a single unit. When replacing the IAT sensor No. 1, replace the MAF sensor/IAT sensor No. 1.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Disconnect the MAF sensor/IAT sensor No. 1 connector.
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 .)