Signal Waveform & Data

Fig 1: Scantool Display - COM & FR Signal Waveform (1 Of 2)

Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: Scantool Display - COM & FR Signal Waveform (2 Of 2)

Courtesy of KIA MOTORS AMERICA, INC.

Fig. 785) Engine Idle after Warm Up

COM → Duty(+) Approx. 34%

Duty(-) Approx. 66%

FR → Duty(+) Approx. 58%

Duty(-) Approx. 42%

Fig. 786) Electrical Load(Engine Idle after Warm Up)

COM → Duty(+) Approx. 34%

Duty(-) Approx. 66%

FR → Duty(+) Approx. 96%

Duty(-) Approx. 4%

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.