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Having Tow Bar electrics fitted and issue with Fog Lights
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GlosBoy
 


Member Since: 16 Oct 2009
Location: Chandlers Ford
Posts: 2444

United Kingdom 2016 Discovery 4 3.0 TDV6 HSE Auto Aintree GreenDiscovery 4
Having Tow Bar electrics fitted and issue with Fog Lights

Guy is installing my tow bar electrics with pucker stuff.

and 13 pin plug.

Currently he has an issue, The fog lights on the car work when the trailer is not connected IF the ignition is on but when he starts the engine they go off

Wiring looks simple to me

Could it be the Cut-off pin in the tow bar plug or does the car need a Reset or something?
 D4 HSE - Aintree Green
D4 Orkney my13 - gone
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D3 silver manual. Loved my first LR


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Post #180201310th Apr 2017 1:12 pm
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DavidSally
 


Member Since: 31 Oct 2012
Location: Chesterfield
Posts: 565

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Tangiers OrangeDiscovery 3

Isn't this how they should work? Disco fog light on when not towing, off when towing so you don't see the Disco fog light reflected off the trailer.
  
Post #180203810th Apr 2017 2:57 pm
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BLFarrar
 


Member Since: 02 Aug 2006
Location: Deepest, Dankest, Darkest, Dingiest......Le Halifax, West Yorkshire...with strong links to Ireland
Posts: 6222

France 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3
I thought it was...

No trailer you get rear fogs....
With trailer lead plugged in no fogs...

If the ignition initiating this with a plugged in lead...
Maybe the in plug switch.....mines stuck in once or twice (I tow a lot)
But if it's new "pukka" wring I'd be looking there.....a bad connection on the new wiring possibly give them a "rattle & tug"

The important thing is you get rear fogs when you need them...[/i]
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Post #180204410th Apr 2017 3:09 pm
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GlosBoy
 


Member Since: 16 Oct 2009
Location: Chandlers Ford
Posts: 2444

United Kingdom 2016 Discovery 4 3.0 TDV6 HSE Auto Aintree GreenDiscovery 4

Agree when the trailer is connected, it wasn't.

Turned out to be a dodgy pin on the release so it thought it had a trailer connected.

That fixed and fog lights now work without the trailer connected , they also get switched off ( as they should) when the trailer is connected.

However, not sure if they make the trailer Fog Lights work as the guys board had a dodgy bulb

I need to try when I get my rig sorted out , hopefully at the weekend
 D4 HSE - Aintree Green
D4 Orkney my13 - gone
Stornaway D4. Gone, Didn't like it at all
D3 silver manual. Loved my first LR


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Post #180204610th Apr 2017 3:10 pm
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Washwipe
 


Member Since: 19 Apr 2013
Location: Bucks Oxon Herts Border
Posts: 3169

England 

Be interested to know if your rear lights are on on the Disco and trailer when you only have the DRL's on.
  
Post #180209910th Apr 2017 5:02 pm
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GlosBoy
 


Member Since: 16 Oct 2009
Location: Chandlers Ford
Posts: 2444

United Kingdom 2016 Discovery 4 3.0 TDV6 HSE Auto Aintree GreenDiscovery 4

I'd like to get rear lights to be on when DRL are on regardless of trailer 👍
 D4 HSE - Aintree Green
D4 Orkney my13 - gone
Stornaway D4. Gone, Didn't like it at all
D3 silver manual. Loved my first LR


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Post #180213610th Apr 2017 6:24 pm
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Washwipe
 


Member Since: 19 Apr 2013
Location: Bucks Oxon Herts Border
Posts: 3169

England 

Thanks
  
Post #180214110th Apr 2017 6:33 pm
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JonM
 


Member Since: 24 May 2012
Location: North Yorkshire
Posts: 1235

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

There are various options in the CCF to programme how fog and reversing lights behave with a trailer fitted. I can't remember what all the options are but you can set them with the IID tool when you tell the car what type of tow electrics are fitted.
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Post #180215110th Apr 2017 7:01 pm
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