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Light bar
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Trucks
 


Member Since: 30 Nov 2019
Location: south newton
Posts: 375

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3
Light bar

Hi
Would it be ok to wire my light bar to the main beam,it is on a separate switch at the moment with inline fuse and relay.
I have concerns about the load and upsetting any ecus bringing up faults.
Any advice would be appreciated
Thanks
 pete truckle  
Post #226389324th Nov 2021 8:36 pm
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LRD4GAB
 


Member Since: 05 Nov 2020
Location: Tamworth
Posts: 472

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4


No issues with mine
  
Post #226389924th Nov 2021 9:10 pm
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Motolab
 


Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815

Netherlands 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

As long as you use a relay for the main current/supply for the spotlight/lightbar and connect only the trigger wire to the main beam. You get no issues…
 Best regards
Harold

Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year

Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. Wink 
 
Post #226391224th Nov 2021 10:08 pm
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NCC-1031
 


Member Since: 30 Jan 2019
Location: Clanfield, Hampshire
Posts: 373

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Vienna GreenDiscovery 3
What bar is it?

Hi. What bar have you got? It looks good.
  
Post #226391324th Nov 2021 10:14 pm
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loanrangie
 


Member Since: 18 Jun 2017
Location: Melbourne
Posts: 592

Australia 2008 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

In most of Australia any auxiliary light like spots/light bars must to wired to only come on when high beam is on and must be switched separately, on my D1 i had it switched from low beam as it was mainly used for slow offroad work where the spread of light in thick bush was excellent.
  
Post #226392625th Nov 2021 5:12 am
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Trucks
 


Member Since: 30 Nov 2019
Location: south newton
Posts: 375

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Thanks guys, the bar I purchased on this forum and the picture is the sellers car, mine is identical but never had a picture so used his hope he doesn't mind.
So as said if I use the main connection (live feed to the light) will I still need the inline fuse or will the headlights fuse/relay be sufficient?
I will post picture of my D3 later as I have been struggling with chemo at the moment but well on the way to remission 🤞.
Pete
O yea it comes from our foreign friends from the east but don't let that put you off this is my second one,I sold the first one on this site as it was curved and roof mounted(that's available to see in my pictures).
I bought this as the guy fitted into the grill so It was just plug and play easy peasy lol.
 pete truckle  
Post #226393925th Nov 2021 8:31 am
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Trucks
 


Member Since: 30 Nov 2019
Location: south newton
Posts: 375

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Hi
I have wired in the light but it continuously flashes on and off when main beam is actuated.
I have by-passed the relay and fuse and went for a straight through connection and the light still flashes on and off.
The wire I tapped into is the blue/slate wire as some call it, or blue/grey wire as others call it on the passenger side.
Any thoughts please
Thanks
Pete
 pete truckle  
Post #226399225th Nov 2021 2:48 pm
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Trucks
 


Member Since: 30 Nov 2019
Location: south newton
Posts: 375

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Sorry the headlight is fine it's the light bar flashes on and off
 pete truckle  
Post #226399325th Nov 2021 2:49 pm
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Motolab
 


Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815

Netherlands 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

As said above, you need a separate relay for the powersupply to the LED bar (straight from the battery and fused ofcourse) and only attach the triggerwire to your mainbeam…
 Best regards
Harold

Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year

Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. Wink 
 
Post #226401425th Nov 2021 5:02 pm
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KevinD3
 


Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1192

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Hey Trucks, you’re looking to wire up something like this. Spots will only come on with main beams and switch allows you to choose that they don’t.


Click image to enlarge
 2008 HSE Stornoway Grey

My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕 
 
Post #226402625th Nov 2021 6:06 pm
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Trucks
 


Member Since: 30 Nov 2019
Location: south newton
Posts: 375

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

OK thanks will check it out again tomorrow but that's the way i wired it up this morning ,as said it worked when the main beam was switched on but the light bar was pulsating on and off along with the l/h headlight going faster.
 pete truckle  
Post #226404425th Nov 2021 8:45 pm
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KevinD3
 


Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1192

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Cant think of anything that would cause the light to flash, apart from too little current, check and double check the pin wiring in the relay, it’s very easy to get mixed around and connect them up wrong (don’t ask how I know lol)
 2008 HSE Stornoway Grey

My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕 
 
Post #226404525th Nov 2021 8:49 pm
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Trucks
 


Member Since: 30 Nov 2019
Location: south newton
Posts: 375

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Will let you know how I get on with it tomorrow obviously something wrong somewhere,by the way is legal to have a light bar fitted this way,I only ask as I remember there were certain stipulations on spots and other added lighting such as distance apart,heights ,brightness etc etc.
 pete truckle  
Post #226405925th Nov 2021 9:23 pm
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KevinD3
 


Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1192

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

You’re all good, central or symmetrically spaced is the requirement.
 2008 HSE Stornoway Grey

My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕 
 
Post #226406325th Nov 2021 9:35 pm
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Trucks
 


Member Since: 30 Nov 2019
Location: south newton
Posts: 375

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Click image to enlarge

Hi
Light bar working fine now after searching the Web,it seems after my search many other people have had the same problem,
It all stems from the wire from the headlight to the relay,I had it wired wrong.
I used the diagram attached and it works as it should.
I also added this answer I copied from the Web for any others on the forum who wish to do the same fitting.

It's flickering because you tapped your headlight power. Just tap into the cigarette lighter or use the battery to power the switch. The pulses from the headlight are going through the switch making your relay have those pulses causing your LED bar to flicker.

Obviously it could be wired with a on/off/on switch in the cab if you wanted to use the light without the headlights on and run it of the auxiliary battery as i had previous.
Another issue solved thank again for your input
Pete
Click image to enlarge
 pete truckle  
Post #226430027th Nov 2021 6:43 pm
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