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 392 (COOLING SYSTEM)FAN CONTROL MODULE INSPECTION
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Fan Control Module Inspection
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Fan Control Module Inspection
WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the two bolts from the fan control module with the connectors still connected.
- Start and warm up the engine.
- Monitor the engine coolant temperature with the WDS or equivalent.
- Measure the voltage at the terminal B of cooling fan control module connector (2 terminals) from the harness side as shown in the table.ENGINE COOLANT TEMPERATURE
Inspection Result Condition A/C Engine coolant temp. IG SW ON OFF Below 95°C {203°F} Fan stops IG SW ON (Idling) OFF Below 95°C {203°F} Fan stops IG SW ON (Idling) ON (1) Below 95°C {203°F} 6.9V-12.1V IG SW ON (Idling) OFF Above 100°C {212°F} 0-6V-14.6V (1) When the magnetic clutch and the middle pressure SW are on. - If not as specified, replace the fan control module.
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.