Hyundai Ioniq (AE): 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.

    Specification Item Specification Coil Resistance (Ω)1.425 - 1.575 [20°C (68°F)]

    Circuit Diagram

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: General safety information and caution

    Safety PrecautionPrecautions To Take Before Servicing High Voltage System    â€¢ Since hybrid vehicles contain a high voltage battery, if the high voltage system or vehicles are handled incorrectly, this might lead to a serious accidents like electric shock and electric leakage.

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Smart Cruise Control (SCC) Switch. Repair procedures

    Removal1.Disconnect the negative (-) battery terminal.2.Remove the steering wheel assembly.(Refer to Steering System -"Steering Wheel")3.Remove the steering back cover (A).4.Remove the steering remote control connector (A).5.Remove the steering remote control (A), after loosening the screws.

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