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Home >> Mazda >> 2000 >> B2500 SX, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls Trouble Shooting (4 Of 5) >> Charging System Component Tests >> Generator On-Vehicle Tests >> Generator On-Vehicle Tests - No-Load Test

Generator On-Vehicle Tests - 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 2000 rpm, check the generator output voltage. The voltage should be between 13.0 and 15.0 volts. If not, refer to CHARGING SYSTEM SYMPTOM CHART .