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 Owners Manual: Using Voice Recognition
Starting Voice Recognition Shortly press the   key on the steering wheel remote controller Say a command. If prompt feedback is in [ON], then the system will say “Please say a command after the beep (BEEP)” If prompt feedback is in [OFF] mode, then the system will only say “(B ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Line Pressure Control Solenoid Valve Repair procedures
Inspection 1. Turn ignition switch OFF. 2. Disconnect the solenoid valve sensor connector. 3. Measure resistance between sensor signal terminal and sensor ground terminal. 4. Check that the resistance is within the specification. Removal     Replacing an on/off ...

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