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 MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 440 (CHARGING SYSTEM)GENERATOR INSPECTIONGENERATORCURRENT
2010 Mazda 5 Sport, 2.3 L, Standard
Generator Inspection: Generator: Current
2010 Mazda 5 Sport, 2.3 L, StandardSECTION Current
WARNING: This page is about a different car, the 2005 Mazda RX-8 and 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that the battery is fully charged.
- Verify that the drive belt deflection/tension is within the specification. (See DRIVE BELT DEFLECTION/TENSION INSPECTION .)
- Disconnect the negative battery cable.
- Connect a tester capable of reading 120 A or above between generator terminal B and the wiring harness.
- Connect the negative battery cable.
- Turn off all electrical loads.
- Start the engine.
- Increase engine speed from 2,000-2,500 RPM.
- Turn the following electrical loads on and verify that the current reading increases.
- Headlights
- Blower motor
- Rear window defroster
NOTE:- Current required for generating power varies with electrical loads applied.
Reference value
Current possible for power generation (differs according to load)
[Conditions] ambient temperature 20°C {68 °F}, voltage 13.0-15.0 V, engine warm
| Engine speed (RPM) | Terminal B current (A) | ||
|---|---|---|---|
| 1,000 | 0(1)-70 | ||
| 2,000 | 0(1)-97 | ||
|
|||
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.