D3 Electric Trailer brake wired-photo

Quote:

---

Originally Posted by sniegy

Hi Derek,
No a diode is not required in a D2, D1 or Defender as the diode protects the CJB (Central Junction Box) in the newer D3/RRS/Vogues.
In eliminates feed back to this CJB so as not to damage it, more for protection as the CJB controls a lot of stuff & is one expensive ECU.

Rovers4, I would strongly recommend that the earth wire (white) be run back to the battery as per instructions on all EBC's. This can cause a fire hazard as the unit may get hot as the earth becomes over time less conductive & corrosion sets in between the connection.

---

Hi Sniegy, I am confused... above you suggest that the white wire be connected directly to the battery, but your first post with photo shows and if I am correct states that you connect it to the metal post below the back fuse panel. Am I missing something?

Thanks
Craig

Hi Craig,
Sorry for the late reply,

Yes, i did quote what was said, but if you read Rovers4 post, he states he owns a Defender & this is what this is referring to not a D3.

Cheers.;)

Quote:

---

Originally Posted by catweasel

firstly my concern was that your method would not operate the vehicles brake lights by the inclusion of the diode which was a safety issue for me and I stated somewhere if a diode was to be used that it should be moved and this has been addressed.

---

I'm sure we would find it a legal requirement to ignite the brake lights when the manual override is activated. Definitely was when I installed my last one in 2005.

Thanks for clearing that up for me. I have my Cousin (an Auto Electrician) connecting it all up for me, I am just running the wires. So I don't need to run any wires directly to the battery, I can just run 4 wires to the rear from the brake control unit?

Thanks again
Craig

Yep, 4 wires from the position where u want to mount the controller to the rear passenger side. ;)

Cheers

I have been following this thread with interest as I picked up my MY09 D3 last week and am starting to set it up. I have a Tekonsha Prodigy brake controller and also the Traxide SC80 kit to install. Since I will be running wires for the Traxide kit through the firewall and need power up front for the UHF radio and an extra cig lighter outlet, is there any reason why I couldn't provide the +ve and -ve to the brake controller direct from the battery rather than pick it up in the rear compartment? Then I would only extend the 2 wires (Blue & Red) through to the back.
One slight concern is that in the photo the size of the fuses, going by their colour, doesn't seem to match mine. The manual states top to bottom,
1 7.5amp Brake
2 15 Ignition feed
3 15 Battery feed
4 15 Rear fog lamps
5 5 RH Tail
6 5 No plate & LH lamp
and the fuses are those sizes. Any reason the fuses in the photo seem to be different?

As my box trailer, boat and caravan all have 7 pin flat plugs I have bought an adaptor from the LR socket to flat seven. Any issues with this?

I certainly want to start on the right foot.

Mal_W

Mal,
Thats how I did mine and it works fine. +ve to battery and -ve to right front earth point.

I wired the UHF off a blank relay behind the glove compartment. A spade connector slides neatly into the relay slots. You can pick constant or accessory power by changing slots.

Andrew

Mal,

That's precisely how I did mine as well with same products. There's an earth bolt behind the drivers kick panel.

Sniegy,

Thanks for this useful post. Have mounted my EBC and works fine. :BigThumb: A bit tight in wiring to the trailer loom in the rear.

A quick question. I have soldered the diode to the wires. I was wondering whether the heat from the soldering iron would affect the diode?

Thanks,

Hi Brick,
The solder if done quickly & with precision should be fine, just be careful when placing the diode as this little sucker does get warm itself.

Cheers