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Home >> Chevrolet >> 1987 >> Spectrum Express >> Repair and Diagnosis >> Electrical >> Charging Systems >> Alternator - NIPPONDENSO >> Bench Testing >> Rectifier Diodes

Rectifier Diodes

  1. With rectifier assembly on bench, contact diode plate with one probe and each of the 3 diode leads with other probe. Note ohmmeter reading. Reverse probes and repeat test. Check all diodes in this manner.
  2. All diodes should show a low reading in one direction and NO reading in opposite direction. If any rectifier diode is defective, replace rectifier assembly.
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