Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 502 (ENGINE CONTROL SYSTEM)INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 INSPECTION (BP WITH TC)RESISTANCE INSPECTION
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Resistance Inspection
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Resistance Inspection
WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the IAT sensor No.2 connector.
- Verify that the resistance between terminals A and B is within the specification.
- If not within the specification, replace the IAT sensor No.2. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION (BP WITH TC) .)
- If the monitor item condition/specification (reference) is not within the specification, even though there is no malfunction, perform the CIRCUIT OPEN/SHORT INSPECTION .
IAT SENSOR RESISTANCE SPECIFICATION
| Ambient temperature (°C {°F}) | Resistance (kilohm) |
|---|---|
| 25 {77} | Approx.33 |
| 85 (185} | Approx.3.5 |
IAT SENSOR CHARACTERISTICS REFERENCE
| Ambient temperature (°C {°F}) | -20 {-4} | 0 (32} | 20 {68} | 40 {104} | 60 {140} |
| Resistance (kilohm) | Approx.357 | Approx.112 | Approx.41 | Approx.17 | Approx.8 |
| Voltage (V) | Approx.4.6 | Approx.4.0 | Approx.3.0 | Approx.2.0 | Approx.1.2 |
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.