Signal Waveform & Data

Fig 1: Scantool Display - Signal Waveform & Data (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 - Signal Waveform & Data (Electrical Load And 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 increases if electrical loads are ON (head lamp and defrost are ON). The PCM controls alternator current duty using the FR terminal when electrical loads are turned ON.