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Home >> Honda >> 2003 >> Civic GX >> Repair and Diagnosis >> Engine Performance >> System >> Fuel System & Emissions System (GX) (Supplement) >> System Description >> PGM-FI System >> Alternator Control

Alternator Control

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