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Headlights and high beams do not work

Tiny
JOHNLEITERMANN
  • MEMBER
  • 2019 CHEVROLET CRUZE
  • 115,000 MILES
They don’t work at all, when I turn the lights switch to manual, I get nothing also. I am hoping it’s a fuse or a relay, but I checked a couple fuses that I think were for my high beams and they looked fine. I know there are other fuses or relays that it might be. But when looking at the box map and the fuse panel I’m not sure what fuses to check next.
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Sunday, January 23rd, 2022 AT 12:05 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,708 POSTS
Hi,

Are there any other components that have stopped working? There are three fuses that power the body control module on this vehicle. Each is powered from the fuse box in the vehicle (center of dash). They are fuses 12, 15, and 18. I need you to check those fuses. In addition to checking the fuses, even if they are good, I need you to confirm there is power to them. Here is a link to help you through the process:

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

I need confirmation of power simply because a fuse before them may have failed and stopped sending power to them. Also, I need to know if there are other things that have stopped working.

I attached two pics below. The first is the fuse box and the fuses to check. I highlighted them for you. The second is the wiring schematic to the body control module showing the fuses' relationship to the headlamps.

Let me know a couple of other things. First, do the other exterior lights work? Do the dash lights turn on? Do the high beam turn on when you pull the lever for the flash to pass?

Let me know as much as you can.

Take care,

Joe

See pics below.

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Sunday, January 23rd, 2022 AT 2:16 PM
Tiny
JOHNLEITERMANN
  • MEMBER
  • 4 POSTS
Yes, the other exterior lights work. I also have my airbag light on, it’s the one attached to the driver’s seat. I pulled the plastic and the wires are out of the sensor. The day the lights went out the signal was flashing that the sensor was out a lot. I haven’t checked the fuses you suggested but I will soon.
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Monday, January 24th, 2022 AT 5:53 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,708 POSTS
Hi,

Sounds like a plan. Let me know if the fuses are good. If the fuses appear good, make sure there is power to and from them as well.

Let me know.

Take care,

Joe
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Monday, January 24th, 2022 AT 3:08 PM
Tiny
JOHNLEITERMANN
  • MEMBER
  • 4 POSTS
I was able to get 1 back on, but no high beam.
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Monday, January 24th, 2022 AT 3:10 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,708 POSTS
Hi,

Which one is working so I can go backward through the schematics and see where power could be lost? Also, what did you do to make it work?

Let me know.
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Monday, January 24th, 2022 AT 4:44 PM
Tiny
JOHNLEITERMANN
  • MEMBER
  • 4 POSTS
The driver's side came back on. I pulled f46 n put it back in n then the light was on. I have no idea what that is.
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Monday, January 24th, 2022 AT 4:47 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,708 POSTS
That indicates a poor connection. Is there any evidence of corrosion where it mounts? Are any of the pins pushed inward preventing the fuses from making good contact?

Joe
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Monday, January 24th, 2022 AT 4:59 PM

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