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Home >> Hyundai >> 2017 >> Elantra GT Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P0620: Alternator Control Circuit >> Specification >> Signal Waveform & Data
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Signal Waveform & Data

Fig 1: Screen Display - Signal Waveform Of Idle Status
G12065292Courtesy of HYUNDAI MOTOR AMERICA
Fig 2: Screen Display - Signal Waveform Of Electrical Load (Head Lamp And Defrost ON)
G12065293Courtesy of HYUNDAI MOTOR AMERICA

Duty (+) from FR terminal is increased if electrical loads are ON (Head Lamp and Defrost are ON) ECM/PCM controls generation of alternator with duty from FR terminal when electrical Loads turn on