With the brake pedal applied, only the center exterior break light turns on. Bulbs have been replaced.
Jul 25, 2019 at 7:22 PM
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STRAILER
CERTIFIED EXPERT
53,854 POSTS
Hello,
It sounds like the flasher module is out which causes this problem. The hazard switch is the flasher. here are wiring diagrams so you can see how the system works and how to replace the switch:
To be sure here is a guide to show you how to check for power: