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D4 and LED trailer Lights
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Nasher
 


Member Since: 07 Mar 2009
Location: Clanfield, North of Pompey - UK
Posts: 2817

England 2016 Discovery 4 3.0 TDV6 HSE Lux Auto Loire BlueDiscovery 4
D4 and LED trailer Lights

I know this has been discussed a lot, but I'd like to clarify my understanding of the situation.

When I had my D3 I converted my boat trailer to LEDs, and had the issue of the Indicators flashing because of the CANBUS test signal.
So I built a box of Relays and resistors that isolated the Indicators but also showed a 'load' to the system so it knew a trailer was connected:

https://www.disco3.co.uk/forum/led-trailer...p;start=15

Now I have a 65 plate D4 I'd like to confirm what I think I've understood from a search on here.

With the D4 the flashing indicators are not an issue with an LED equipped trailer, but the car doesn't 'see' that a trailer has been connected.

So, I can junk the complicated relays etc and simply fit a resister to one or both of the indicator circuits.
Is that correct?

Thanks

Nasher. Heaven doesn't want me, and hell is afraid I'll take over.  
Post #210794922nd Dec 2019 9:41 pm
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Kelvo
 


Member Since: 07 Aug 2015
Location: Perth WA
Posts: 264

Australia 2014 Discovery 4 3.0 TDV6 Base 7 Seat Auto Fuji WhiteDiscovery 4

With the D4 the flashing indicators are not an issue with an LED equipped trailer, but the car doesn't 'see' that a trailer has been connected. Correct

So, I can junk the complicated relays etc and simply fit a resister to one or both of the indicator circuits.
Is that correct? Correct

I fitted resistors to both the indicator circuits on the D4 trailer harness, but fitted a switch. This lets me use a trailer with ‘normal’ bulbs with the resistor switch OFF, then if I use a LED equipped trailer I just turn the switch ON. MY14 TDV6  
Post #210795522nd Dec 2019 10:42 pm
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Nasher
 


Member Since: 07 Mar 2009
Location: Clanfield, North of Pompey - UK
Posts: 2817

England 2016 Discovery 4 3.0 TDV6 HSE Lux Auto Loire BlueDiscovery 4

Thanks Kelvo Thumbs Up

Nasher Heaven doesn't want me, and hell is afraid I'll take over.  
Post #210796722nd Dec 2019 11:32 pm
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