Signal Waveform & Data

Fig 1: Scantool Display - Engine Idle After Warm Up

Courtesy of KIA MOTORS AMERICA, INC.

COM → Duty (+) Approx. 34%

Duty (-) Approx. 66%

FR → Duty (+) Approx. 58%

Duty (-) Approx. 42%

Fig 2: Scantool Display - Electrical Load (Engine Idle After Warm Up)

Courtesy of KIA MOTORS AMERICA, INC.

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.