2003 olds silhouette has high beams but no low beams. Is there a fuse or relay somewhere?

Dear Am,
You should have a headlight relay or two somewhere to check, usually under the hood.
God bless your efforts.

Under hood in a fuse box is a relay for the low beams also a fuse in the fuse box somewhere in dashboard for both headlights and dashlights

is the light setup one ballast for high and low beam ? if so the ballast has gone, probably even the bulbs. replace the ballast and bulbs. some aftermarket ballasts don't last, if you cannot find the right ballast for replacement you will need to replace both ballasts. as every ballast set are set the same and sold in pairs.

If you have a short it is in the power line to the lamp unit. From the relay.

check fuse/relay. they have them for each side. see image for location in fuse box

For the I6 engine there is a relay for low beams, it's relay # 46. Switch it with relay #45 (runs the fan, same model relay) and see if your lights now come on. These 2 relays are the only 2 black ones in there (part # 15016745). Also, try to clean the contacts very well on the fuse box and the relay. If not, you may have some frayed wiring in the harness.

By the way, the high beam relay is #43, the gray one next to the windshield wiper relay #42.

Check out your fuse associate with the low beam headlight, secondly there is a relay fuse under fuse rely box under the hoos. Locate this box, and locate the relay fuse associated to the low beam. You can rotate the relay with another relay of the same spec to see if the low beam lights are coming on. I would believe that it is a fuse that is blown, check your owners manaual on the location of the fuse box. Usually it's located in the driver side kick panel.

How did you check the relays? The most common reason for low beams to be out is Relay #46 in the underhood fuse panel.

high beam or low beam? or both of them on one side.

• One low beam headlamp is inoperative

• Central junction box (CJB) fuse 23 (10A) (RH headlamp).
• CJB fuse 25 (10A) (LH headlamp).
• Circuitry.
• CJB.

• Go To Pinpoint Test C .

• One high beam headlamp is inoperative

• Circuitry.
• Headlamp assembly.

• Go To Pinpoint Test D .

• The high and low beam headlamp is inoperative on one side

• Circuitry.

• REPAIR ground circuit 57 (BK).

• Headlamp switch
• Multifunction switch
• Vehicle Security Module

• Central junction box (CJB) fuse(s):
  • 17 (15A)
  • 23 (10A)
  • 25 (10A)
  • 35 (20A)
  • 40 (20A)
• Circuitry
• Headlamp bulbs
• Daytime running lamp (DRL) relay

thare is a high beam relay and a low beam relay in the fuse box find the low beam relay and replace it. if this dont work its probabley the switch