Headlights not wokring?

Tiny
ASEMASTER6371
  • EXPERT
Good find.

Now, to go one step further, the fuse failed for a reason. Was the connector in good shape? Did you bump anything during the replacement that may have caused the fuse to fail?

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

Keep ans eye on it. If the fuse fails again, further diagnostics will need to be done to find the issue.

https://www.2carpros.com/articles/how-to-check-wiring

Roy
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+1
Wednesday, December 9th, 2020 AT 8:40 AM (Merged)
Tiny
KATBONDWALKER
  • MEMBER
Thanks. I have a feeling my hubby might have blown it, installing an after-market Bluetooth stereo a few weeks back. I will definitely keep an eye on it.
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Wednesday, December 9th, 2020 AT 8:40 AM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
That should have nothing to do with it but you never know.

Keep us updated if it fails again.

Roy
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Wednesday, December 9th, 2020 AT 8:40 AM (Merged)
Tiny
JOE1962
  • MEMBER
  • 2001 PONTIAC GRAND PRIX
  • 426,122 MILES
Both my lowbeam headlights dont work but my highbeams do and I just replaced the one headlight 2 months ago, plus I lost my daytime headlight last year, I am reading a p0650 code?
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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
It sounds like there is a problem with the switch. If you are sure the bulbs are good, I would recommend checking the switch as well as the multi function switch on the steering column.
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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
CNB8869
  • MEMBER
  • 2001 PONTIAC GRAND PRIX
Electrical problem
2001 Pontiac Grand Prix 6 cyl Two Wheel Drive Automatic 120K miles

Hi -
my low beam headlamps wont come on. The high beams come on, the fuses are good and the circuit breakers seem to work ( take them out and the highs quit). I'm not any other problems, What else can I do.
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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
MASTERTECHTIM
  • MEMBER
This may sound silly but have you checked the bulbs? Many times I get cars to come into my shop with this problem and both bulbs are burnt out.
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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
CNB8869
  • MEMBER
Well - I didn't notice it. The high beams still work though, and they use the same bulb.
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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
MASTERTECHTIM
  • MEMBER
I would replace them, they have 2 filaments in each bulb and my guell is the low beam filament is burnt out.
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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
CNB8869
  • MEMBER
Cool - Let me try that see if it works. I checked the fuses - their good. The circuit breaker also seems to work (take it out and the high beams go off).

Thanks
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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
MICHAELV
  • MEMBER
  • 1992 PONTIAC GRAND PRIX
Electrical problem
1992 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic

While driving down the road the head lights go out. After a few seconds they come back on. I replaced the head light switch in the dash but that did not help. Is there a relay located somewhere that may cause this?

Thanks,
Mike
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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
RACEFAN966
  • EXPERT
Well it sound like the dimmer switch is bad. The lights run through the dimmer from the switch then to the headlights. Here is a pic


https://www.2carpros.com/forum/automotive_pictures/249564_98286_1.jpg

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Wednesday, December 9th, 2020 AT 8:41 AM (Merged)
Tiny
MARIES21
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
2006 Pontiac Grand Prix Automatic

For some reason only the brights on my car work, tried to switch the fuse and the bulbs, but still only the brights work. And after a year now the brights stopped working. So I dnt have low beams or high beams. What could be wrong? Waht can I do to fix it.
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Friday, December 11th, 2020 AT 12:10 PM (Merged)
Tiny
JDL
  • EXPERT
Welcome to the forum, I'd check the voltage circuits at the high and low beam relays in the power distribution center, under the hood. Just pull the relay, use a testlite, see how many hot circuits, two for each relay should be hot all the time. You need to have codes checked, see if it shows anything? The headlamp switch sends signal to bcm, bcm grounds the coil side of those relays, mentioned.

When you check fuses, also use a testlite and check for voltage on the fuse circuit. Even if the fuse is good, if there is no voltage on the circuit, the circuit is still dead.
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Friday, December 11th, 2020 AT 12:10 PM (Merged)
Tiny
MARIES21
  • MEMBER
Okay what is a testlite?
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Friday, December 11th, 2020 AT 12:10 PM (Merged)

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