Signal Waveform & Data

Fig 1: Scantool Display - Signal Waveform & Data (Engine Idle After Warm-Up)

Courtesy of KIA MOTORS AMERICA, INC.

CH.1 - Nernst Voltage - Approx. 3.01V

CH.2 - Virtual Ground - Approx. 2.49V

CH.3 - Trim Resistor - Approx. 2.35V

CH.4 - Pumping Current - Approx. 2.33V

Fig 2: Scantool Display - Signal Waveform & Data (Engine Idle)

Courtesy of KIA MOTORS AMERICA, INC.

CH.1 - Nernst Voltage & Trim Resistor: Approx. 0.24V

CH.2 - Pumping Current & Virtual Ground: Approx. -0.25V

* Test Method: Connect Channel A positive probe to Nernst Voltage and Channel A negative probe to Trim Resistor.

Connect Channel B positive probe to Pumping Current and Channel B negative probe to Virtual Ground.

Fig 3: Scantool Display - Signal Waveform & Data (Approx 2000 RPM, 3000 RPM & Fuel Cut)

Courtesy of KIA MOTORS AMERICA, INC.

A and B: Approx. 2000 RPM and 3000 RPM

CH.1 - Nernst Voltage & Trim Resistor: - 0.10 ~ 1.12 V

CH.2 - Pumping Current & Virtual Ground: -0.35 ~ 0.59 V

C: Fuel Cut

CH.1 - Nernst Voltage & Trim Resistor: 1.10 V

CH.2 - Pumping Current & Virtual Ground: 0.59 V

* Test Method: Connect Channel A positive probe to Nernst Voltage and Channel A negative probe to Trim Resistor.

Connect Channel B positive probe to Pumping Current and Channel B negative probe to Virtual Ground.