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discovery 3 trailer lights blinking Help
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leemaxxd
 


Member Since: 01 Nov 2019
Location: NEWARK
Posts: 33

2010 Discovery 4 3.0 TDV6 HSE Auto Corris GreyDiscovery 4
discovery 3 trailer lights blinking Help

hi just tried my trailer on my disco 3 for the first time the trailer indicator lights seem to blink

the trailer has led lights fitted and resistors in the lights can anybody tell me how to stop this do i need to rip out the wiring and fit genuine landrover wiring as it may be aftermarket

thanks  
Post #21655113rd Aug 2020 9:29 pm
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SantaCruz
 


Member Since: 22 Jan 2012
Location: Salisbury, Wiltshire
Posts: 564

2016 Discovery 4 3.0 SDV6 SE Tech Auto ArubaDiscovery 4

Wiring harness makes no odds ( my last D3 did it with led lights) - I have (apparently) can bus friendly led bulbs on a lighting board for my D4, and they do not pulse /flash Si

2016 Disco 4 SE Tech
2019 Fiesta ST3
2021 GBS Zero  
Post #21655123rd Aug 2020 9:35 pm
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leemaxxd
 


Member Since: 01 Nov 2019
Location: NEWARK
Posts: 33

2010 Discovery 4 3.0 TDV6 HSE Auto Corris GreyDiscovery 4

my disco 4 never did it either with a genuine landrover kit fitted but the disco 3 seems too  
Post #21655133rd Aug 2020 9:48 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

You need a ‘pulse buster’ with LED trailer lights connected to a D3. Essentially two LED load resistors and two relays.



A D4 does not pulse the trailer LED so only requires resistors to disable the rear fog lights, rear parking sensors, alter autobox shift points and disable automatic height adjustment when changing Terrain Response mode. MY14 TDV6  
Post #21655423rd Aug 2020 11:50 pm
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555SUB
 


Member Since: 21 Feb 2009
Location: Shropshire
Posts: 50

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Where do the wires go on the relay as 5 terminals on relay but your drawing only shows 4 terminals on relay

Which colour wires of the trailer connect to which terminal numbers:

30 -

85 -

86 -

87 -

87a -  
Post #217317211th Sep 2020 1:54 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10362

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Don’t use 87a

The top coil pins are 85 and 86 (85 earth but if don’t matter)

30 and 87 bottom  
Post #217317911th Sep 2020 2:10 pm
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555SUB
 


Member Since: 21 Feb 2009
Location: Shropshire
Posts: 50

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Thanks Pete

Thumbs Up Thumbs Up Thumbs Up Thumbs Up  
Post #217321411th Sep 2020 3:47 pm
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555SUB
 


Member Since: 21 Feb 2009
Location: Shropshire
Posts: 50

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Have fitted this set up to a new Ifor Williams trailer which has stopped the indicator fast blinking - but now the trailer turn signal does not show on the dash board when the trailer is connected when indicating .... is there anything I can do to fix this??

All help greatly appreciated.  
Post #217949711th Oct 2020 8:02 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10362

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

You still need load resistors  
Post #217949911th Oct 2020 8:06 pm
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555SUB
 


Member Since: 21 Feb 2009
Location: Shropshire
Posts: 50

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

I’ve got resistors in wired between +ve & -ve but now thinking about it they may be too high and possibly need to replace with a smaller load resit’s or  
Post #217950611th Oct 2020 8:59 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

What resistance are the resistors that you have fitted?
Where exactly have you fitted them? MY14 TDV6  
Post #217953711th Oct 2020 11:40 pm
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