Welcome to 2CarPros.
I suspect the fuse is bad. This vehicle has a fuse for each light and each choice. For example, left side high beam, left side low beam, right side high beam, right side low beam.
The fuses are in the under hood fuse box. I attached a picture indicating all 4 fuses. I circled the one for the left low beam. Check it. It is fuse 40 in the fuse box and is a 15 amp fuse.
I noted you are a mechanic. If you need further directions for testing, let me know.
Also, let me know what you find or if you have other questions.
Take care,
Joe
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Monday, October 28th, 2019 AT 8:45 PM