Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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STRAILER
AUTOMOTIVE REPAIR CONTRIBUTOR
54,178 POSTS
Hello,
All brake lights are wired together so it must be a connecting problem. here are the brake light wiring diagrams so you can see how the system works and a guide to help walk you through the repair: