SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 639 (CHARGING SYSTEM)GENERATOR INSPECTIONGENERATORCURRENT
2008 Mazda 6 s Sport, 4D Hatchback, Standard

Generator Inspection: Generator: Current

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Current
WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that the battery is fully charged.
  2. Verify that the drive belt deflection/tension is within the specification. (See DRIVE BELT DEFLECTION/TENSION INSPECTION ).
  3. Disconnect the negative battery cable.
  4. Connect a tester, which can read 120 A or more  , between generator terminal B and the wiring harness.
  5. Connect the negative battery cable.
  6. Turn off all electrical loads.
  7. Start the engine.
  8. Increase engine speed to 2,000-2,500 rpm  .
  9. 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 the 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 hot 

    REFERENCE VALUE

    Engine speed (rpm) Terminal B current (A)
    1,000 0(1)-70
    2,000 0(1)-97
    (1) The lower limit of current must be more than 0 A.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.