Generators & Regulators: Description

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The Nippondenso generator uses 4 positive and 4 negative diodes to rectify current. A voltage regulator, which is part of the generator, controls charging system voltage.

Charging system incorporates Electric Load Detector (ELD), which measures load on the charging system. ELD sends signal to the Engine Control Module (ECM) or Powertrain Control Module (PCM), which controls the voltage regulator. By adjusting voltage output, ECM/PCM reduces mechanical load on engine for better fuel economy.