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Chevy Express 2500 2016 headlight problems

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Old May 29, 2023 | 9:36 AM
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Default Chevy Express 2500 2016 headlight problems

Hello, I have a problem with my headlights, left low beam is not working and right high beam is not working either. Fuses are fine, lamps are fine, I cannot find any info where the relays are located - anyone knows? (They are not in the main fuse box...) Thank you!
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Old May 29, 2023 | 1:05 PM
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Please pay attention to the big red instructions at the top of the page: This section is not for help threads.
Moving your question from the Welcome area to the Van section so it can actually be answered.
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Old May 29, 2023 | 1:13 PM
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The relays are not user serviceable.
  • Check the lights wiring harness for damage or bad ground points
  • measure for voltage on the fuses
  • Check lamp sockets for corrosion
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Old May 29, 2023 | 2:31 PM
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thanks, I've replaced the lights already so the problem is somewhere else- I'll check the harness and the fuses again- so the relays are deep inside somewhere?
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Old May 29, 2023 | 2:38 PM
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They are solid state relays integral to the fusebox PCB. Generally, they do not fail. If you measure 12V on the fuses then the relays are fine.
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Old May 29, 2023 | 7:16 PM
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Originally Posted by mountainmanjoe
They are solid state relays integral to the fusebox PCB. Generally, they do not fail. If you measure 12V on the fuses then the relays are fine.
Thank YOU!
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