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Home >> Mazda >> 2020 >> 6 Signature >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN Y) >> Intake Air Temperature (IAT) Sensor Inspection >> IAT Sensor No. 1 >> Resistance Inspection
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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: Measuring Resistance Between MAF Sensor/IAT Sensor 1 Terminals A And B
    G12232029Courtesy of MAZDA MOTORS CORP.

Specification (Reference) 

RESISTANCE SPECIFICATION

AT (°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.