Headlights not working

Tiny
CARLCASY
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • 150,000 MILES
This is not a question but a answer for headlight problems on a 1998 Chevy K1500 Silverado. If you have daytime running lights but when you turn on your regular headlight on they do not come on. Take the bottom of your steering column off (Two Small Screws) and look at the back of your turn/dimmer switch make sure that the light blue wire is connected. The wires will break off after years of raising and lowering your steering column. Headlights not working
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Wednesday, December 21st, 2011 AT 10:28 PM

39 Replies

Tiny
SATURNTECH9
  • EXPERT
Great tip thank you so much for posting it. Here are the headlight wiring diagrams so you can see how the system works. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Wednesday, December 21st, 2011 AT 10:32 PM
Tiny
CASEIH
  • MEMBER
  • 1997 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 162,000 MILES
The tachometer and speedometer will quit working while driving and the pu does not have full power. We have to stop, shut the pu off of a minute, then restart. It usually fixes the problem. Also, when driving at night with high beam headlights the lights will go off. Eventually they will come back on.
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
RASMATAZ
  • EXPERT
Check and test the alternator, battery and the vehicle speed sensor-
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
KDUFORE
  • MEMBER
  • 1997 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 280,000 MILES
Okay, a couple of months ago I was working late and went to leave work and had no running lights as in tail and marker lights. So I had about fifty miles to drive home and all interstate mile I decided to go with my headlights and flashers and hope for the best. About ten miles down the road my flashers stopped flashing and were stuck on then completely stopped working, but I still had headlights and brake lights. One other thing the DRL's have not worked for about four years and I never worried about it because I really did not care. So I made the decision to pull into an auto parts store and see if I could fix this. First trip in I bought fuses and a flashlight. All the fuses were good and no headlight fuse could be found. So I thank GM for making it easy to remove the headlight switch almost by hand. I unplugged the switch looked it over and started jumping wires on the plug. The first one I got the marker lights. I went back in and they had a switch and I bought it and installed and I was on my way but with no flashers but hey at least I could be seen. So little did I know that this is the easy part. I installed a new flasher the next day and thought I was good, Less than a week later I lost my headlights after dark so I ran my flashers home. Since then I did some research and decided to take care of the DTR's too. I then changed the relay and the module for the DTR's diode. I got running lights and still no headlights or high-beams. More research pointing to the multi-switch on the steering column. Changed that. Still no headlights but every thing still works. Maybe I got a bad headlight switch. Next I pulled the plug on the new switch and started jumping wires again and the running lights came on and a couple terminals down the headlights came on and I pulled the lever for the high beams and they worked, must be I got a bad switch. Put a new one in and no headlights.

Any Ideas?
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
Good morning.

The headlight are actually controlled by DRL module. Very good chance that is your issue as the power from the lights goes from the headlight switch to the module and then to the lights.

Roy
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
Found this diagram for you.

Roy
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
KDUFORE
  • MEMBER
Thanks Roy, that module is one of the first things I changed along with the relay under the dash next to the flasher relay. I did get my daytime running lights after I replaced the module.
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
Okay, then verify there is power to the yellow wires coming out of the module. Also, make sure both fuse listed have power on both sides.

Roy
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
62CHEVY
  • MEMBER
  • 1997 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
1997 3500 hd headlights will not come on but dtrs still work as do marker lamps. New main switch what could it be?
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Check main fuses under hood. Check wires for power and trace to locate open circuit.
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Monday, July 27th, 2020 AT 5:35 PM (Merged)
Tiny
MCCAY
  • MEMBER
  • 1996 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 18,000 MILES
Low beams quit working, tested the headlights to see if they were good, they were, checked fuses, replaced the multi-function switch, the low beams came on then all of a sudden they quit working, checked everything out again but they still won't work? Any help would be appreciated,

Actually the truck is a 1500 pickup, we checked the DRL relay and the switch is between 3 & 4 which according to the diagram on the switch is correct. Thank you. Shirley

thanks
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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
Check the daytime running lamp (DRL) relay, let me know how it tests.

OK, perform following test steps..


https://www.2carpros.com/forum/automotive_pictures/261618_Noname_863.jpg

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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
MCCAY
  • MEMBER
Hello! We ended up replacing the DRL relay and guess what our headlights are working, thank you so much for your quick response and all your help.
Shirley
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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
STEVOTX
  • MEMBER
  • 1995 CHEVROLET SILVERADO
  • V8
  • 2WD
  • MANUAL
  • 177,000 MILES
When you turn the switch, head lights will not come on, No High or low beam. The parking lights work. When you hit the passenger side blinker, you get a fast flashing turn signal. I checked all the bulb's and they are working. I checked the fuses and they all look good. Any suggestions will be greatly appreciated.
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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
RHALL77
  • EXPERT
Sounds like a possible bad head light switch. Are you 100% sure all the bulbs are ok. Did you check the side marker lights also.
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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
STEVOTX
  • MEMBER
I got the blinker light resolved, it was a bad bulb. Still no head lights, I repalced the switch, still no head lights. Any other suggestions?
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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
RHALL77
  • EXPERT
Did you check to see if there is voltage at the headlight connector.
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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
CHEVROLET
  • MEMBER
  • 1994 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 14,000 MILES
Strange things occuring with left turn signal recently, now all of a sudden my rear lights are out compleltely, though front lights are working.
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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
RASMATAZ
  • EXPERT
Check and test the turn/hazard switch
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Monday, July 27th, 2020 AT 5:36 PM (Merged)
Tiny
CHEVROLET
  • MEMBER
You stated I should check the turn/hazard switch re front lights work/rear not working. Where is this switch located? Thank you.
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Monday, July 27th, 2020 AT 5:36 PM (Merged)

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