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Resistance inspection

NOTE:
  • Because the IAT sensor No. 2 is integrated in the MAP sensor, replacing the IAT sensor No. 2 includes replacement of the MAP sensor/IAT sensor No. 2.
  1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
  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.
CONTINUITY 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 1: Identifying IAT Sensor No. 2 Connector Pins
G09758731Courtesy of MAZDA MOTORS CORP.
Fig 2: Resistance Versus Temperature Graph
G09758732Courtesy of MAZDA MOTORS CORP.