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: Heater Core Repair procedures
Replacement 1. Remove the crash pad. (Refer to Heater - "Heater Unit") 2. Loosen the mounting screw and then remove the heater core cover (A). 3. Remove the heater core. 4. Be careful that the inlet and outlet pipe are not bent during heater core removal, and pull out the heater co ...

Hyundai Tucson (LM) 2010-2015 Service Manual: License Lamps Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the license lamp lens (B) by pressing the clip (A). 3. Turn the license bulb socket (A) counterclockwise to remove the bulb (B) from lens (C). Installation 1. Install the bulb. 2. Install the license lamp lens. ...

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