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)ON-VEHICLE TESTSGENERATOR CURRENT
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Generator Current
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Generator Current
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.
NOTE:
Since the charging current decreases rapidly after starting the engine, carry out the following procedure quickly, and read the maximum current value.
- Verify that the battery is fully charged.
- Verify that the drive belt deflection/tension is correct.
- Disconnect the negative battery cable.
- Connect a tester capable of reading 120 amps or above, between generator terminal "B" and the wiring harness connector.
- Connect the negative battery cable.
- Turn off all electrical loads. Start the engine. Increase engine speed to 2000-2500 RPM.
- Turn headlights (high-beam), blower motor (high), rear window defroster and brake lights on and verify that the current reading increases. If generator terminal "B" current does not increase, repair or replace the generator if necessary.
Standard current (reference) See GENERATOR AMPERAGE table.
Measuring conditions:
- Room temperature: 68°F (20°C).
- Voltage: 13.5 volts.
- Engine hot.
NOTE:
Current required for generating power varies with electrical loads applied.
GENERATOR AMPERAGE
| Application | Terminal "B" @ 1000 RPM - Amps (1) | Terminal "B" @ 2000 RPM - Amps (1) | ||
|---|---|---|---|---|
| 2.3L | 0-80 | 0-100 | ||
| 3.0L | 0-90 | 0-105 | ||
|
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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.