Kia Cee'd: Engine Control System / Injector Troubleshooting

Signal Waveform
The three waveforms below are taken from the #1 and #4 injectors. The top waveform is from the high side (feed side) of the #1 and #4 injectors, while the middle waveform is from the low side (ground side) of the #1 injector and the bottom waveform is from the low side of the #4 injector.
The middle waveform is the same as the top waveform because there is no ground for the circuit. With no current flowing in the circuit, the #1 injector is not energized and fuel does not flow.
The bottom waveform shows that ground is supplied and there is a voltage drop across the #4 injector. With current flowing in the circuit, the #4 injector is energized and fuel flows.

Injector Specifications
Specification   Item Specification Coil Resistance (Ω) 1.5 ± 5%[20°C(68°F)] ...

Injector Schematic diagrams
Circuit Diagram ...

Other information:

Kia Cee'd JD Owners Manual: Adaptive Front Lighting System (AFLS)
Adaptive front lighting system uses the steering angle and vehicle speed, to keep your field of vision wide by swiveling and leveling the headlamp. Change the switch to the AUTO position when the engine is running. The adaptive front lighting system will operate when the headlamp is O ...

Kia Cee'd JD Service Manual: Relay Box (Engine Compartment) Components and components location
Components ...

© 2017-2020 www.kceed.com