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 337 (COOLING SYSTEM)FAN CONTROL MODULE INSPECTION [AJ]
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Fan Control Module Inspection [AJ]
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Fan Control Module Inspection [AJ]
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.
- 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 fan control module connector (2 terminals) as shown in the table.
- If there is any malfunction, replace the fan control module.
ENGINE COOLANT TEMPERATURE SPECIFICATIONS
| Inspection | Result | ||||
|---|---|---|---|---|---|
| Condition | A/C | Engine coolant temp. | |||
| IG SW ON | OFF | 95 °C {203 °F} or less | Fan stops | ||
| IG SW ON (Idling) | OFF | 95 °C {203 °F} or less | Fan stops | ||
| IG SW ON (Idling) | ON(1) | 95 °C {203 °F} or less | 6.9V-12.1V | ||
| IG SW ON (Idling) | OFF | 100 °C {212 °F} or more | 0.6V-14.6V | ||
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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.