Member Since: 15 Mar 2013
Location: Norfolk
Posts: 17
Hi M3,
even with the old bulbs the icon still does not light up,i do have to use a connector from 13pin to 7 to use my trailer boards,the LED boards work fine with the adaptor
24th May 2015 4:12 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8109
Is that on your trailer or with a second known good trailer/board?It can when others can't,
It will when others won't,
It goes where others don't.
24th May 2015 4:12 pm
633Gunner
Member Since: 15 Mar 2013
Location: Norfolk
Posts: 17
a brand new LED trailer board
24th May 2015 4:15 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8109
You need to check the CCF with a suitable diagnostic tool as suggested above to make sure towing is enabled, this switches the rear PDSensors off, allows the dash towing indicator light to operate when indicators are used and disables suspension height changes when a trailer is connected electrically.It can when others can't,
It will when others won't,
It goes where others don't.
24th May 2015 4:23 pm
633Gunner
Member Since: 15 Mar 2013
Location: Norfolk
Posts: 17
Thanks M3,
will try to get that done,thanks for all the help
24th May 2015 4:25 pm
discoteca
Member Since: 08 Mar 2010
Location: Warwickshire
Posts: 1477
M3DPO wrote:
You need to check the CCF with a suitable diagnostic tool as suggested above to make sure towing is enabled, this switches the rear PDSensors off, allows the dash towing indicator light to operate when indicators are used and disables suspension height changes when a trailer is connected electrically.
But it won't do any of that even with the CCF changes if it is a LED trailer board unless there are some resistors wired into the trailer electrics. The car simply wont know its connected...........
But the LED lights themselves will actually work fine.
24th May 2015 7:21 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
I've only had 1 LED light board on my D4 but it worked as intended. The same set of lights did not work on my D3. My presumption is that the D4 electrics are less fussy.
Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 24 Aug 2007
Location: Kent
Posts: 10564
D4's and RRS seem to be all slightly diffrent with regards to LED's and trailers/caravans.
I have just picked up a new caravann with LEDs, all lights worked as intended but the trailer warning on the dash did not. The caravan company supplied a small box of tricks to plug into the caraban lighting wiring which resolved the ssue, now all light swork and the warning on the dash also works.
However here is the rub. The caravan dealer confirmed it ppears to be down to each individual vehicle. They have supplied a number of caravans with LED's to D4 and RRS drivers some need the box of tricks some do not and infact the day I went over to pick the box of tricks up there was another D4 who did not have the issue, i connected my car up and the traile warning light did not work................
As somone has already said you need a box of tricks to get a better resistance and allow the car to realise it has a trailer fitted.MY17 D5 1st Edition Namib Orange
MY15 D4 HSE Kaikoura Stone
MY12 D4 HSE Nara Bronze Sold and gone
MY11 D4 HSE Stornaway Grey Sold and gone
D3 S spec Silver Sold and gone
Tow bar, full length roof bars, side steps, tow bar storage unit, surround camers.
D4 camera club
24th May 2015 7:48 pm
633Gunner
Member Since: 15 Mar 2013
Location: Norfolk
Posts: 17
Any idea what the box of tricks might include,i did buy a TEB7AS universal bypass relay,when i had the D3 so i could use an LED trailer board but changed to a D4 before fitting,would this do the trick
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