Did you check voltage, anywhere, use a test light. Did you check for voltage at the applicable fuse circuit? Always check voltage and ground. For 3.8L vin 2, there is a high-beam relay, shouldn't effect low beams. In the diagram, see low beam fuses, turn on your headlamps, low beam, any voltage on those fuses? Here is a guide to help you check the wiring with the headlight wiring diagrams below.
Check out the diagrams (Below). Please let us know what happens.
Images (Click to enlarge)
Tuesday, April 7th, 2015 AT 2:04 PM