My low beam/DRL/ headlights are not working

This very well could be the switch. What I would do is go to the smart junction box and measure voltage on the Blue/White wire in pin 14. This sounds be the low beam signal from the switch. If you have power on this wire at the smart junction box when the lights are in low then it is not the switch but the junction box.

Let me know if you have questions. Thanks

What should the voltage be at pin 14? I only have 3v at the pin and the same at the headlight connectors on both sides. I have 12v going into the SJB from the Battery Junction box.

If you take a look at the SJB it says that wire is a sense wire. That means it is a 5 volt circuit. So 3 volts makes sense when you have the switch on low beams.

This is actually good because that confirms you have the switch telling the SJB to turn on the lights. However, if you have no voltage on pins 3 and 20 coming out of the SJB then that means the SJB is the issue.

Let me know what you find. Thanks