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The driver side headlamp is not working?

Tiny
RPJ
  • MEMBER
  • 2008 CHEVROLET AVEO
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 173,000 MILES
Hello,

I changed the bulb and every­thing looks good, but the low beam would not work.

I'm thinking this is a pigtail problem, but just wanted to check with the experts to make sure.

Thanks,

Roosevelt.
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Sunday, August 18th, 2024 AT 1:16 PM

10 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

Each light has two fuses, one for low and one for high beam. Locate the fuse box under the hood.

Locate fuse EF23. That fuse is dedicated to the left low beam only. See pic below. When you check the fuse, make sure power is present on both sides.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Also, the headlamp low beams must be on for power to be present at the fuse.

Let me know what you find.

Take care,

Joe

See pic below.
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Sunday, August 18th, 2024 AT 9:10 PM
Tiny
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Hello Joe,

I will look into this and get back to you.

Thanks for your help.

Roosevelt.
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Monday, August 19th, 2024 AT 2:18 PM
Tiny
JACOBANDNICKOLAS
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Hi,

No problem whatsoever. Let me know. I have no idea why each light and each beam has to have its own fuse, but that's what they did. LOL

Take care,

Joe
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Monday, August 19th, 2024 AT 7:19 PM
Tiny
RPJ
  • MEMBER
  • 75 POSTS
Hello Joe,

I replaced the 10A fuse that's for the Driver's side headlight, but still it does not operate, Either in daytime headlight mode or when headlights are on. The high beams work though.

Is it time for an electrical check at a repair shop?

Thanks for your help.

Roosevelt.
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Wednesday, August 21st, 2024 AT 5:37 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

If the right low beam works, then either you have a faulty bulb, a wiring problem, or a connector issue. I say that because although both left and right low beams have their own fuses, power comes from the same place. The low beam relay.

Were you able to confirm there is power present at the fuse?

Let me know.

Joe

See pic below.
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Wednesday, August 21st, 2024 AT 7:54 PM
Tiny
RPJ
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Hello,

The new bulb worked for a day then stopped working. I have not tested to see if power is at the fuse. I can buy a fuse tester for this, correct? I will get one today and let you know.

Thanks, Roosevelt
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Thursday, August 22nd, 2024 AT 5:26 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

I believe a fuse tester will only test the continuity in the fuse. We need something like a test light, voltmeter, or multimeter to determine if power is present.

Take a look through this link:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let me know what you find.

Joe
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Thursday, August 22nd, 2024 AT 8:17 PM
Tiny
RPJ
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Hello Joe,

The pigtail behind the headlight was the issue. Replaced it, and everything is good.

Thanks for your help,

Roosevelt.
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Wednesday, August 28th, 2024 AT 8:03 PM
Tiny
JACOBANDNICKOLAS
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Hi,

You are very welcome and thanks for the update. I'm glad to know you were able to resolve the issue.

Take care and you are always welcome to come back anytime in the future.

Joe
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Thursday, August 29th, 2024 AT 6:54 PM
Tiny
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Thanks Joe!
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Thursday, August 29th, 2024 AT 6:57 PM

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