Thread: D4 Electric Trailer Brake Wiring

Hi all, I've installed a Redarc EBC on my D4 as per Sniegy's instructions on this thread which made the job super easy. Including the diode on red brake signal cable.
However I think I may have a problem:
1. It now makes a clicking sound which you can feel through the gear stick when in Park or Neutral and I put foot on brake.(it's like a relay clicking on and off). In drive it's fine.
2. Without a trailer connected I don't seem to have a varying voltage at pin5, it's remaining constant. The red light goes on and off with brake application though. I haven't tested with a trailer connected yet.
Anyone have similar issue or is it an issue at all?jj

Originally Posted by Laney58

Hi Tombie, I need it for the 31st March, I work in Port Augusta so can get to Whyalla easy. Work is an issue, I'll be in Adelaide this Wednesday, and the following week at Kingoonya for 3 days. regards Peter

Damn...

Never got a notification from this thread and missed the post..

Hope you got this sorted..

Originally Posted by Hungo

However I think I may have a problem:
1. It now makes a clicking sound which you can feel through the gear stick when in Park or Neutral and I put foot on brake.(it's like a relay clicking on and off). In drive it's fine.
2. Without a trailer connected I don't seem to have a varying voltage at pin5, it's remaining constant. The red light goes on and off with brake application though. I haven't tested with a trailer connected yet.

Point 1 is normal and is a relay as you suspected. Must have foot on brake to put it in drive.

Point 2, hard to say. Testing with trailer would be the go.

Scott

I have the Redarc Tow Pro wired up as per diagram here. With no trailer connected, my Tow pro button does not light up at all. I do not get any ticking or clicking, trailer connected or not. Also I have had no issues with flasher rate or reversing beepers working when a trailer is connected. My trailer has LED lights, but so does my 16.5 disco, so maybe LR fixed up the low wattage of a LED trailer with the later models.

Thanks Scott and Dirvine,
Tested with a 10w globe and it is operating perfect. It goes green when connected and voltage ramps up and down. When I unplug load the green light turns off etc.

I don't remember there been the relay clicking noise when in Park and N before I wired up the brake controller. I thought maybe it was a bad earth, but it appears OK. Any other thoughts?

Also, does anyone wire the controller power through an ignition activated relay rather than direct 12v from battery? I've done direct to battery as per Sniegy wiring, but means the controller always has the green light on when trailer plugged in even though ignition off.

yes, I did thanks. Went back to the same auto sparky with info from the forum site. He carried on a bit in the morning and in the arvo when I went to pick it up he's like my neighbours got one and I'm thinking of buying a Range Rover Velour. Couldn't shut him up

Originally Posted by Tombie

Damn...

Never got a notification from this thread and missed the post..

Hope you got this sorted..

Hi,

Just purchased a 2016 SDV6 SE, just wondering if you had trouble with led lights on the van? Did you need the extra connector between car and van? Also my van has a flat 12 pin connector. Did you have the car plugs changed?

Thanks in advance.

Steve

Originally Posted by Kandy

Purchased D4 SDV6 late May for the extra power when towing 2.5 t caravan so my "activation" was had dealer add a Redarc brake controller and LR tow hitch receiver and tongue(50mm ball) plus a large round 7 pin. Brake controller works brilliant, no weight distribution stuff involved , 8 speed auto smooth as with the ability to go "manual" quickly on some hills. Changing to McHitch auto soon though the reversing camera when changed to trailer hitch mode is fantastic, (a line on the screen from your tongue/ball to the caravan coupling) but thats just me being too lazy to hop out too often. Hope this helps.
Steve

Hi All,

I am about to embark on installing a Tow Pro and traxide kit tomorrow on my 2013 D4. Ive noticed that there are a few differences in year models. Can anyone please confirm which wiring set up i need.

I have got Scotts excellent build thread and tried a few things as per it, however have found the lights particularly are different. Mine has H7 low and high beam.

Appreciate all responses.

cheers
Geoff