LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2014 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) - 2.4L (Except HEV) >> DTC P0620: Alternator Control Circuit >> Specification >> Signal Waveform & Data
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Signal Waveform & Data

Fig 1: Signal Waveform Of Alternator (Idle Status)
G07386738Courtesy of KIA MOTORS AMERICA, INC.
Fig 2: Signal Waveform Of Alternator (Electrical Load)
G07386739Courtesy of KIA MOTORS AMERICA, INC.

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