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Home >> Mazda >> 2007 >> B3000 Base, Automatic >> Repair and Diagnosis >> Electrical >> Charging Systems >> Charging System >> Generator On Vehicle Testing >> No Load Test

No Load Test

  1. Switch the battery tester to the voltmeter function.
  2. Connect the voltmeter positive lead to the generator B+ terminal and the negative lead to ground.
  3. Turn all electrical accessories off.
  4. With the engine running at 2,000 RPM, check the generator output voltage. The voltage should be between 13.0 and 15.0 volts. If not, see CHARGING SYSTEM COMPONENT TESTS .
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