Brake Pedal wire for Brake Controller?
JK Newbie
Joined: Jan 2010
Posts: 26
Likes: 0
From: Flemington, NJ
I have '08 sahara 4dr automatic without the tow package (I think - bought used and no hitch on it). I added a hitch and a 4way plug. This weekend I'll be towing a pop-up camper with brakes so I just installed a prodigy brake controller and dual 7pin - 4pin receptor. Bought the prodigy used on Ebay for $65 incl. s&h. and bought a ETBC7 wiring/plug kit from etrailer for $65 (kit is only good if you already have a 4 pin - if not you may need to install that first or buy another part). Here are my comments:
1) Hitch installation: doesn't get any easier
2) 4 way plug: almost as easy as hitch
3) 7pin plug: easy to install - drill bracket holes with drill bit unless you have self-taping screws (not included in kit). Also, has purple wire for reverse lights. I simply unscrewed left, rear tailight and used a scotch-lok (not included) to join/tap a 3 ft long 14guage wire (not included) into the stock reverse light wire (it was stiped - I think it was white with green or blue stripe (only striped wire going to bottom bulb). This reverse light wire is an 18 guage wire so your scotch-lok will need to be capable of joining the 18 guage and the wire you supplied (I recommend 14 guage since you need to butt crimp the 14 guage with the 10 guage purple wire coming from the 7pin).
4) 7pin wiring: easy but a little time consuming running wires back to front. Watch the how to video for a Ford F150 on e-trailer's ETBC7 webpage - very helpful.
5) Prodigy: Easy to install. connect wires per diagram included. Trickiest part was finding the brake stop-light wire since I didn't have a 12 volt tester. I followed the above post and tapped into the white with tan strip (WT/TS) coming from the brake switch. This (WT/TS) is short so use another scotch-lok and it is easy. Again watch video on etrailer.
All parts/materials were included except the 2 scotch-loks, electrical tape, self-tapping screws (not necessary but very nice) and the 14 guage wire I used. You will need a crimping tool (some wire strippers have these built in) and of course a wrench, philips screw driver (I used a drill and ratchet), conduit grease (not essential but beneficial when connect existing 4plug ).
I am towing my 3,200 lb loaded trailer tomorrow WITHOUT brakes on five 13 mile trips. This weekend I am towing the 3,800 lb pop-up camper WITH brakes on a 400 mile round trip. I'll let everyone know how it goes - especially in this hot weather.
1) Hitch installation: doesn't get any easier
2) 4 way plug: almost as easy as hitch
3) 7pin plug: easy to install - drill bracket holes with drill bit unless you have self-taping screws (not included in kit). Also, has purple wire for reverse lights. I simply unscrewed left, rear tailight and used a scotch-lok (not included) to join/tap a 3 ft long 14guage wire (not included) into the stock reverse light wire (it was stiped - I think it was white with green or blue stripe (only striped wire going to bottom bulb). This reverse light wire is an 18 guage wire so your scotch-lok will need to be capable of joining the 18 guage and the wire you supplied (I recommend 14 guage since you need to butt crimp the 14 guage with the 10 guage purple wire coming from the 7pin).
4) 7pin wiring: easy but a little time consuming running wires back to front. Watch the how to video for a Ford F150 on e-trailer's ETBC7 webpage - very helpful.
5) Prodigy: Easy to install. connect wires per diagram included. Trickiest part was finding the brake stop-light wire since I didn't have a 12 volt tester. I followed the above post and tapped into the white with tan strip (WT/TS) coming from the brake switch. This (WT/TS) is short so use another scotch-lok and it is easy. Again watch video on etrailer.
All parts/materials were included except the 2 scotch-loks, electrical tape, self-tapping screws (not necessary but very nice) and the 14 guage wire I used. You will need a crimping tool (some wire strippers have these built in) and of course a wrench, philips screw driver (I used a drill and ratchet), conduit grease (not essential but beneficial when connect existing 4plug ).
I am towing my 3,200 lb loaded trailer tomorrow WITHOUT brakes on five 13 mile trips. This weekend I am towing the 3,800 lb pop-up camper WITH brakes on a 400 mile round trip. I'll let everyone know how it goes - especially in this hot weather.
JK Enthusiast
Joined: Aug 2010
Posts: 366
Likes: 0
From: Kalamazoo, MI
Where is that blue wire
I know this thready is a little old but quick question. Ive found the white/tan stripe wire above the brake pedal, but where is this blue wire that I need to connect to the brake controller? Someone in this thread mentioned its coiled up by the battery but maybe I am missing it? I have a 2010 Sahara with the tow package. I do see a blue wire in this same harness that the white/tan stripe wire is, but not sure if this is the correct one or not?