Applying Trailer 12V to Trailer Brakes
I use an electric trailer dolly to precision position our TT after pulling it onto our paved parking pad. (We have very limited manuvering room) The dolly has a 7 pin connector cable and a brake contr...
Forum Discussion
No problem
If you look at end of trailer umbilical cord plug with raised part UP
11 o'clock is 12V HOT
7 o'clock is brake controller output
Make up a momentary spring loaded toggle switch with flat terminals and push them into corresponding pin positions
Then toggle on/off for braking as needed.
When On you will have FULL trailer battery voltage so limit amount of on time.
Otherwise brake magnets could be damaged
If you look at end of trailer umbilical cord plug with raised part UP
11 o'clock is 12V HOT
7 o'clock is brake controller output
Make up a momentary spring loaded toggle switch with flat terminals and push them into corresponding pin positions
Then toggle on/off for braking as needed.
When On you will have FULL trailer battery voltage so limit amount of on time.
Otherwise brake magnets could be damaged
