Electric brake controller
Posting Guru
Joined: Feb 2015
Posts: 1,092
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Pictures worth a thousand words!
I've often used a flat tipped screwdriver and popped the oem plug off its mounting bracket.
It frees up an inch or two of wiring and allows you to pull it towards you a little. It can make it easier to plug into it.
I've often used a flat tipped screwdriver and popped the oem plug off its mounting bracket.
It frees up an inch or two of wiring and allows you to pull it towards you a little. It can make it easier to plug into it.
Fleet Mechanic
Joined: Feb 2011
Posts: 1,812
Likes: 88
From: Thousand Oaks, CA
I hooked up the trailer and all looks good, too.
Our trailer came with a square metal electrical box for the trailer cable connections mounted in front of the batteries. It was a standard electrical box and everything inside was rusting. I cut all that out and mounted a rectangular plastic connection box under the trailer, rewired and labelled everything. Added 4 individual wires for the brakes and split loomed everything. Also, put in a standoff 12v post in a box underneath to connect all the high amp 12v circuits away from the battery.
I have one more connection to install - the 12v charge line from the car 7-way.
If I understand this correctly -
1. The car 12v charge line is connected to the trailer battery and the 12v power converter.
2. When I am towing the alternator is charging the trailer battery.
3. When I am camping with ground power the 12v power converter is charging the trailer battery. But, if the 7-way is still connected the car battery will not be getting charged because the car relay has disconnected it.
Posting Guru
Joined: Feb 2015
Posts: 1,092
Likes: 0
Thanks, everything checks good.
I hooked up the trailer and all looks good, too.
Our trailer came with a square metal electrical box for the trailer cable connections mounted in front of the batteries. It was a standard electrical box and everything inside was rusting. I cut all that out and mounted a rectangular plastic connection box under the trailer, rewired and labelled everything. Added 4 individual wires for the brakes and split loomed everything. Also, put in a standoff 12v post in a box underneath to connect all the high amp 12v circuits away from the battery.
I have one more connection to install - the 12v charge line from the car 7-way.
If I understand this correctly -
1. The car 12v charge line is connected to the trailer battery and the 12v power converter.
2. When I am towing the alternator is charging the trailer battery.
3. When I am camping with ground power the 12v power converter is charging the trailer battery. But, if the 7-way is still connected the car battery will not be getting charged because the car relay has disconnected it.
I hooked up the trailer and all looks good, too.
Our trailer came with a square metal electrical box for the trailer cable connections mounted in front of the batteries. It was a standard electrical box and everything inside was rusting. I cut all that out and mounted a rectangular plastic connection box under the trailer, rewired and labelled everything. Added 4 individual wires for the brakes and split loomed everything. Also, put in a standoff 12v post in a box underneath to connect all the high amp 12v circuits away from the battery.
I have one more connection to install - the 12v charge line from the car 7-way.
If I understand this correctly -
1. The car 12v charge line is connected to the trailer battery and the 12v power converter.
2. When I am towing the alternator is charging the trailer battery.
3. When I am camping with ground power the 12v power converter is charging the trailer battery. But, if the 7-way is still connected the car battery will not be getting charged because the car relay has disconnected it.
Yes on all accounts buy disconnect the truck from trailer at campground just for safety sake.
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