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Resistance inspection

  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Disconnect the MAP sensor/IAT sensor No. 2 connector.
  3. Remove the MAP sensor/IAT sensor No. 2. (See Manifold Absolute Pressure (MAP) Sensor/Intake Air Temperature (IAT) Sensor NO. 2 Removal/Installation .)
  4. Measure the resistance between MAP sensor/IAT sensor No. 2 terminals A and B.
    Fig 1: Measuring Resistance Between MAP Sensor/IAT Sensor No. 2 Terminals A And B
    G12184632Courtesy of MAZDA MOTORS CORP.
INTAKE AIR TEMPERATURE RESISTANCE SPECIFICATION

IAT (°C {°F}) Resistance (Kilohms)
0 {32} Approx. 5.9
20 {68} 2.375-2.625
80 {176} Approx. 0.323
130 {266} Approx. 0.0893
Fig 2: MAF Sensor/IAT Sensor No 2 Temperature Graph
G09758732Courtesy of MAZDA MOTORS CORP.