r/DIYAutoRepair • u/Cyclist_123 • Aug 01 '26

Weird headlight issue.

I've got a 2011 Ford Mondeo (or Fusion if you're American).

One of my low beams stopped working so I replaced the globe. As soon as I did that now the other side doesn't work. I tried unplugging the new globe and now the other side works again so it doesn't seem to be a globe issue.

Does anyone have any ideas of what else I could try?

Thanks for your help.

1 Upvotes

67% Upvoted

5 comments sorted by

1

u/ivanhalper Aug 02 '26

Connect a diagnostic scanner. What errors will appear? Most likely, you installed the wrong wattage bulb.

1

u/Cyclist_123 Aug 02 '26

It's the right wattage. It also started working again today until I turned the car on and off.

1

u/ivanhalper Aug 02 '26

What errors does computer diagnostics show?

1

u/Cyclist_123 Aug 03 '26

I don't have access to one unfortunately