D4 Electric Trailer Brake Wiring

**LandyAndy** · 1st March 2015, 09:19 PM

Originally Posted by RoverLander

Hi Scott, you are right... That part of my post should have said trailer lights (not brakes). I will edit it. So we hree the car brake lights wont come on when the manual override on the EBC is used.

Peter

I belive they will and SHOULD if a trailer is conneceted,as the unit is in sleep mode with no trailer connected I wouldnt expect any lights.
I will plug my camper trailer in when the D4 is back in the shed to see if manual push gives brake lights.
Andrew

**outasight** · 1st March 2015, 10:28 PM

Hi all,

Well I just went out and hooked up my brand new MY15 D4 SE, with the Redarc TowPro fitted by Sniegy's guys to my caravan in the drive & I got NO brake lights when pressing the manual override! Of course they worked when pressing the brake peddle.

I am surprised.

Regards,

Les.

**RoverLander** · 2nd March 2015, 04:25 AM

Originally Posted by outasight

Hi all,

Well I just went out and hooked up my brand new MY15 D4 SE, with the Redarc TowPro fitted by Sniegy's guys to my caravan in the drive & I got NO brake lights when pressing the manual override! Of course they worked when pressing the brake peddle.

I am surprised.

Regards,

Les.

Les,

I suspect that means that the diode needs to be moved. A simple fix. The trailer lights will then come on when the EBC is operated manually. The car brake lights wont.

Peter

**ScottD4** · 2nd March 2015, 07:59 AM

Originally Posted by outasight

Hi all,

Well I just went out and hooked up my brand new MY15 D4 SE, with the Redarc TowPro fitted by Sniegy's guys to my caravan in the drive & I got NO brake lights when pressing the manual override! Of course they worked when pressing the brake peddle.

I am surprised.

Regards,

Les.

Les,

I would be getting that fixed ASAP. If you manually operate the trailer's brakes you want the lights to work!

I don't believe I have a diode fitted to my vehicle, and I get an output at Pin 6 on the plug (brake lights) for the trailer when the override button is pushed.
Scott.

**LandyAndy** · 2nd March 2015, 03:08 PM

I just tried mine when I put the D4 back in the shed.As per Les,I get no brake lights on the vehicle with manual operation,cant say for the trailer as how its parked you cant see the lights and had nobody here to look.
The knob has the green LED with the trailer connected and turns red with foot or manual operation.
Andrew

**LandyAndy** · 2nd March 2015, 03:12 PM

Originally Posted by RoverLander

Les,

I suspect that means that the diode needs to be moved. A simple fix. The trailer lights will then come on when the EBC is operated manually. The car brake lights wont.

Peter

I fitted my diode at the Red Arc,not in the rear loom.Next time I move the D4 when somebody is around I will check if the trailer has lights with manual operation.
Andrew

**aspiremr** · 7th March 2015, 05:08 PM

Hi All,

Brand new to the forum so hope I am typing this in the correct place, apologies if not. Just collected a 2010 D4 3.0, and waiting on delivery of new van in a few weeks.

I'm technically inept, so would never attempt an install of a brake controller myself, the damage I could cause would cost more to repair than the savings over getting it done by someone with skills.

Am wondering if anyone has any recommendations for installation of a redarc towpro controller in Perth, preferrably northern suburbs.

Thanks

**RoverLander** · 7th March 2015, 06:29 PM

Hi all,

I rang the RMS technical people here in NSW to check on the need for trailer and vehicle brake lights to come on when using the manual override on the electronic brake controller.

The law is that NEITHER need to come on when you use the manual override. The law is when the service brake (another name for the foot brake) is used the brake lights must come on. But no need when the manual override is used.

Im pretty happy about that as i cant see any way that you could wire up a brake controller so that the car brake lights on a D4 would come on when the manual EBC is used.

In any case i will move the location of the diode so that the trailer brake lights will come on when the manual override is used.

Peter

**LandyAndy** · 7th March 2015, 06:53 PM

Originally Posted by aspiremr

Hi All,

Brand new to the forum so hope I am typing this in the correct place, apologies if not. Just collected a 2010 D4 3.0, and waiting on delivery of new van in a few weeks.

I'm technically inept, so would never attempt an install of a brake controller myself, the damage I could cause would cost more to repair than the savings over getting it done by someone with skills.

Am wondering if anyone has any recommendations for installation of a redarc towpro controller in Perth, preferrably northern suburbs.

Thanks

Welcome Aboard.
The job isnt hard,but you must be pretty good with wiring to take it on.Infact the hardest part of the job is removing and re-fitting trim panels.I found that more daunting in a brand new vehicle.
As for a Perth auto sparky,I would post in the WA AULROians area,see if some of the Perth blokes can suggest where to go.
Goodluck.
Andrew

**GP1200** · 8th March 2015, 01:27 PM

Hi Aspiremr,

Did you purchase from Southerns?
They quoted me a while ago, I think it was close to a $900 to $1000, supply and fit, I did get a quote from the Landy Independant in Wangara for around $650,
I ended up not doing it as it wasn't required, but looks like we are buying a camper and will have to get it done. After reading all the pages of stories on the brake controllers, I would rather pay someone who knows what they are doing!

Saying that, I will most lightly sell the car near the end of 2015 and purchase another, is there a plug and play version that you can use, no doubt the caravan hire places might use something that they can fit & remove ?

Also, can I suggest every LRA SURVEY that D4 owners do, mention in the coments that they should consider a factory option of the brake controller and second battery,

I find it strange that LRA talk about what a wonderful tow car in one sentence but give you no direction or options with a brake controller ( or second battery )
Keep bringing it up on the surveys and you never know..

Jack

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Trailer brake lights - not needed on manual override.

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