FixVault

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.
  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
G11436114Courtesy of MAZDA MOTORS CORP.

Specification (Reference) 

IAT (°C {°F}) Resistance (Kilohms)
-20 {-4} 13.7-16.6
20 {68} 2.49-2.79
60 {140} 0.622-0.703
Fig 2: IAT Sensor No. 1 Temperature Resistance Graph
G11436115Courtesy of MAZDA MOTORS CORP.