Resistance Inspection

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Resistance Inspection
WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable.
  2. Disconnect the MAF/IAT sensor connector.
  3. Measure the resistance between the MAF/IAT sensor terminals D and E using an ohmmeter.
    • If the IAT sensor is okay, but the PID value is out of specification, perform the "Circuit Open/Short Inspection".
    • If not as specified, replace the MAF/IAT sensor. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION .)
      Fig 1: Identifying Intake Air Temperature Sensor
      G03644236Courtesy of MAZDA MOTORS CORP.

Specification 

SPECIFICATION

Ambient temperature (°C {°F}) Resistance (kilohm)
-20 {-4} 13.6-18.4
20 {68} 2.21-2.69
60 {140} 0.493-0.667
Fig 2: Intake Air Temperature/Resistance Graph
G03644237Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.