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 102 (GENERATORS & REGULATORS)TROUBLE SHOOTINGGENERATOR WARNING LIGHT OPERATION
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Generator Warning Light Operation
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Generator Warning Light Operation
WARNING: This page is about a different car, the 2004 Mazda 6 and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that the battery is fully charged.
- Turn the ignition switch to ON position and verify that the generator warning light illuminates. If warning light does not illuminate, inspect generator warning light, wiring harnesses between the battery and the generator warning light.
- Verify that the generator warning light goes off after the engine is started. If it does not go out, connect Worldwide Diagnostic System (WDS), or equivalent scan tool and check if any one of the following DTCs in the on-board diagnostic system are displayed:
- P0112, P0113, P2502, P2503 or P2504.
If P0112, P0113, P2502, P2503 or P2504 are displayed, see DIAGNOSTIC TROUBLE CODE DEFINITIONS in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If no DTCs are present, perform appropriate test under ON-VEHICLE TESTS .
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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.