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Benbencarter5



Member Since: 21 Jan 2024
Location: York
Posts: 3
United Kingdom 2003 Defender 110 Td5 HT Bonatti Grey
Defender headlights not working
Hi all just joined the site so please forgive me if I’m mirroring a different thread.

I’ve recently purchased a 2003 td5 110 van but the headlights aren’t working. I can flash them but neither dipped beam or full beam (without holding flash) works. I have replaced the light on off switch and the indicator stalk switch and the salmon pink dim dip relay however this hasn’t fixed the problem.

Has anyone else had the same problem and fixed it? Any advice would be much appreciated.

Thanks, Reuben.
Post #1022106 21st Jan 2024 10:52pm
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 896
United Kingdom 2004 Defender 90 Td5 CSW Santorini Black
Normally it is the switches burning out.

Have you checked the fuses? Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders
Post #1022133 22nd Jan 2024 9:13am
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Benbencarter5



Member Since: 21 Jan 2024
Location: York
Posts: 3
United Kingdom 2003 Defender 110 Td5 HT Bonatti Grey
Yes I’ve checked all the fuses and replaced both switches.
Post #1022134 22nd Jan 2024 9:18am
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 896
United Kingdom 2004 Defender 90 Td5 CSW Santorini Black
Hmmm, odd.

Are you on LED headlights or halogen? Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders
Post #1022135 22nd Jan 2024 9:20am
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Benbencarter5



Member Since: 21 Jan 2024
Location: York
Posts: 3
United Kingdom 2003 Defender 110 Td5 HT Bonatti Grey
I was on halogen and then I changed to leds but had the same problem with both.
Post #1022136 22nd Jan 2024 9:21am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17443
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I'm not especially familiar with the TD5 wiring but assuming that it is generally similar to the early Puma, there is likely to be an ignition-energised relay which prevents the headlights from being on without the ignition. If this has failed, it would produce the symptoms you describe.
Post #1022137 22nd Jan 2024 9:22am
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410
United Kingdom 
Ok. Begin with the simple things. Get yourself a multimeter to test that 12v is getting to the switches and headlights. It could be a dodgy connection somewhere, corroded fuse connection or something.

This is your best way forward. Thumbs Up
Post #1022140 22nd Jan 2024 10:24am
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410
United Kingdom 
This is the wiring diagram for the TD5 https://www.lrworkshop.com/wiring-diagram/...e-tail/td5
Post #1022141 22nd Jan 2024 10:27am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5729
2006 Defender 110 Td5 USW Zermatt Silver
Short out / bridge the dim dip relay.

Also make sure the wiring connections and the new light switch are good. New parts aren’t always good parts.
Post #1022177 22nd Jan 2024 2:39pm
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nosuchthing



Member Since: 01 Sep 2022
Location: Woldingham
Posts: 22
United Kingdom 2003 Defender 110 Td5 CSW Epsom Green
I just want to add to the knowledge base and probability of the various solutions for 'no dipped beam'.
My TD5 recently lost its dipped beam headlights - but sidelights and full beam were still working. A number of suggestions have been made in various posts on the forum - i.e. light switch itself, stalk switch on steering column, and dim/dip relay.
The dim/dip relay crops up in many suggestions and is very easy to access (it's behind the speedo panel on the dash - just four screws to take out - no need to disconnect any connectors or speedo cable) - and in my case the relay was in fact the problem. The pink one with reference YWC 10050. A five minute job and the headlights are fine again.
Hope this helps someone.
Post #1054844 16th Dec 2024 2:22pm
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