Headlight low beams are not working?

Tiny
GRANDPRIX06
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 224,354 MILES
My low beams won't work for anything. I'm currently running high beams. I went to the strap yard to get bulbs and relays to replace the ones I have now. They are still not coming on I replaced the fuse box and everything containing the low beam headlights. Can someone help me?
Tuesday, July 18th, 2023 AT 10:12 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,055 POSTS
Hi,

Each low-beam bulb has its own fuse. Make sure they are good. Both are located in the under-hood fuse box.

If you find the fuses are good, I suspect the HDM module/relay is bad.

If you look below, I attached two pics. One is the headlamp wiring schematic and the other shows the fuse locations and relay.

Check these and let me know what you find.

I just found a recall related to this issue. If this has never been repaired by GM, they may still cover it. I attached the recall information below. (Pics 3 and 4)

Take care,

Joe

See pics below.
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Wednesday, July 19th, 2023 AT 9:41 PM

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