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Home >> Hyundai >> 2013 >> Santa Fe Sport Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 2.4L (3 Of 3) >> DTC P0620: Alternator Control Circuit >> Specification >> Signal Waveform & Data
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Signal Waveform & Data

Fig 1: Display - Oscilloscope Signal Waveform Screen (Idle Status)
G09370807Courtesy of HYUNDAI MOTOR AMERICA
Fig 2: Display - Oscilloscope Signal Waveform Screen Electrical Load (Head Lamp, Defrost ON)
G09370808Courtesy of HYUNDAI MOTOR AMERICA

Duty (+) from FR terminal is increased if electrical loads are ON (Head Lamp and Defrost are ON)

ECM controls generation of alternator with duty from FR terminal when electrical Loads turn on