Hyundai Tucson: 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 ItemSpecificationCoil Resistance (x)1.5 [20°C(68°F)] ...

Injector Schematic Diagrams
Circuit Diagram (M/T) (A/T) ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Specifications
Specifications ItemSpecificationPower sourceDC 14.4V (-) groundFrequency range / Channel spaceFM : 87.5 ~ 108.0 MHz / 100 KHzAM : 531 ~ 1602 KHz / 9 KHzTuning typePLL SYNTHESIZED TUNINGImpedance2 ohm x 4Antenna80 pF 75 ohmDark currentMAX 2mA (Head unit only)S/NFM : MIN 50 dBAM : MIN 40 dB GP ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: Rear view camera (if equipped)
The Rear View Camera will activate when the engine is running and the shift lever is in the R (Reverse) position. Whenever the vehicle ignition is cycled off and on, the rear view camera will turn on when the shift lever is put into R (Reverse). ■ Type A The rear view camera can be turned ...

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