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Home >> Honda >> 2009 >> Civic GX >> Repair and Diagnosis >> Engine Performance >> System >> Fuel System & Emissions System (R18A1 Engine) >> System Description >> PGM-FI System >> Alternator Control
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Alternator Control

The alternator signals the ECM/PCM during charging. The ECM/PCM then controls the voltage generated at the alternator according to the electrical load determined by the electrical load detector (ELD) and the driving mode. This reduces engine load to improve fuel economy.