My brake lights and hazard light do not work?

1994 CHEVROLET TRUCK
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PAYTON
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  • 3 POSTS
I am needing some help. My brake lights and hazard light do not work. I have replaced two different fuses and bulbs and i have replaced the brake box swich. My head lights and back up lights work fine. What else could be going on here. thanks :D
Jan 5, 2006 at 4:03 AM

What to check next

Diagnostic guidance. Suggested checks and possible repairs are separate from the owner's reported results.

Have the failed circuits traced using the correct wiring diagram and loaded supply checks. Restore the brake lights before driving and document the switch already replaced.

Guidance references and applicability

Source: This question and its visible discussion. The roadmap distinguishes the original owner's reports from other participants' experiences; proposed follow-up is editorial guidance, not a confirmed diagnosis. Fluke: Diagnosing voltage drops https://www.fluke.com/en/learn/blog/automotive/electrical-automotive-troubleshooting General support for loaded circuit testing; use matching vehicle specifications.

Read the replies · Discussion summary and reported outcome

AI-ASSISTED GUIDANCE · REVIEWED BY 2CARPROS
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SMOKINFLOYD4.3
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brake light switch, hazzard relay?
Jan 5, 2006 at 4:07 AM
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PAYTON
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so i need to check for both of these then. sorry but were are these goona be located.
Jan 5, 2006 at 4:16 AM
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SMOKINFLOYD4.3
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the brake switch, is right up on the pedal, in the dash, the hazard relay is on the fuse block.
Jan 5, 2006 at 4:19 AM
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PAYTON
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thanks, hope this works. :D
Jan 5, 2006 at 4:22 AM

Discussion summary

My brake lights and hazard light do not work?

The owner reported inoperative brake and hazard lights despite replacing fuses, bulbs and a brake switch. Headlights and reverse lights still worked. Replies again suggested a brake switch and hazard relay.

Reported outcome: No restored-lighting result was reported.

Component locations and relay involvement were not verified for the actual vehicle. Repeating a switch replacement was not supported by test results.

Read the original discussion

AI-ASSISTED SUMMARY · REVIEWED BY 2CARPROS
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