What to check first
Inspect the cable routing and visible switch condition with the trailer parked, following the brake maker’s test instructions.
When to get help
If it is damaged or fails its specified test, have it repaired before towing.
Your RV’s make, model and component instructions control. Stop use and seek qualified help for propane odor, smoke, active electrical danger, unsafe braking or other immediate hazards. This guide does not diagnose your RV or establish part compatibility.
Next step
Check the exact component manual and model number before following a model-specific procedure.