My headlights pop up but don't turn on.have changed switch and control module. Any ideas?

Some ideas here. It may be an issue in the headlights control module.

https://www.google.com/search?q=2014+VW+Jetta+TDI%3B+low+beams+stopped+working

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No, I wouldn't suspect the headlight switch. Something more sinister, more surreal, too: a module, maybe a body control module, or a light control module, probably under the dash somewhere. GM began using a lighting control module (LCM) at least as far back as 1992, tucked unhandily up under the dash, and wired between the headlight switch and everything else in the lighting circuits.
Normal to suspect the headlight switch, but the odd conjunction of the car running and the headlights' actions suggest a module (another computer!) may be in there. The headlight switch should have no effect on it if the engine was running or not. You would have to see a wiring diagram in a repair manual to check. I am not familiar with your Hyundai, but if you could find a diagram, you should be able to fix it.
If you register for free at autozone.com, giving make, model, year and engine size of vehicle, you can access wiring diagrams and repair procedures. Just look under repair guides.
Wiring diagrams were under Chassis Electrical, if I recall.

The front control module controls all of that and they go bad all the time. It's bolted to the fuse box under the hood

Two items to check. headlight relays and body control module. Also make sure firewall and dash grounding is good. Might also be a multi-function switch internal problem (part of directional switch) You need to test or without fail, you'll change everything and the last part changed will be the one with the problem.
Get a decent manual and a test light or better, volt meter.

these trucks have a generic body control module in the left kickpanel. just remove the plastic trim from the drivers floor molding to access the module. inspect the wire for green dust or gel. if there is signs of this then you have a corrosion problem. disconnect you battery and then try cleaning the corrosion all off using contact cleaner and penetrating oil. once the corrosion is gone then reconnect everything and try to see if it works. If not then it is possible that the module is damaged. you will need a new one.

Hello
This problem is more than likely the headlight door relay module, the relay is located in the top center of the dash where a speaker would be.
If the headlights do not come on as well as the door don't open then the problem may be the headlight switch, it controls the headlights and the ground side of the relay closing coil. The relay should be fairly cheap. The headlight switch is very cheap as well, to replace it you reach behind the switch and press the silver button at the rear top of the switch, at the same time pull the knob out, once the knob and shaft are out just remove the male threaded nut that secures the switch to the dash panel. Also make sure you like for heat damage to the wires in the connector to the switch, all the terminals should be bright metal, if they are discolored the connector must be replaced with a repair connector. See picture of switch below.

STANDARD MOTOR PRODUCTS Part # DS273T [headlight switch] $11.28

Mine was the Body Control Module (BCM). Switched it out (needs to be programmed) and everything was fine.

No. All those lights are on the same fuse and are controlled by the headlamp switch.

Make sure that the fuses were all checked on the fuse panel inside the vehicle under the dash. That is where the fuse for those lights is.

What module are you referring to?
Sounds like your multi function switch is bad. Headlights, high-low, TS all the same switch.

Dash lights were falsing ? I assume you mean pulsing .
driving lights come on ? daytime running lights or park lamps ,does the vehicle have daytime running lamps . Daytime running lamps module .
Daytime Running Lamps (DRL) Module (Headlamp Auto Control Module)
Mounted behind the radio and the HVAC control, left of the instrument panel compartment.