Forum Discussion
MACHZER
Jun 03, 2018Explorer
Problems some owners are running into is the BCM on a lot of vehicles today no longer use a simple fuse for Brake and Taillights. They use special electronic fuses called HSD'S. They are very current sensitive and open when current exceeds a preset amount. Some vehicles require to r&r to a trailer BCM or Fuse box. You may need relays or a converter to run any trailer lights.
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