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TamarBlue11



Member Since: 25 Sep 2020
Location: England
Posts: 226
United Kingdom 2011 Defender 90 Puma 2.4 HT Tamar Blue
Radio crackling when headlights on
Hi Guys, my 2011 Defender has standard headlights (currently) however when these are on the radio signal is alot worse. Has anyone come across this before? Is this an earthing issue?
Post #942040 11th Feb 2022 9:06am
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4209
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
If you've no LED lights, then earth would be my next port of call. 2007 110 TDCi Station Wagon XS
Post #942059 11th Feb 2022 11:13am
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TamarBlue11



Member Since: 25 Sep 2020
Location: England
Posts: 226
United Kingdom 2011 Defender 90 Puma 2.4 HT Tamar Blue
Thanks, is it best to look first for a dodgy earth at the headlight end?
Post #942062 11th Feb 2022 12:42pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4209
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
It'd certainly be the easiest to check. I don't know where the chassis earth is for the headlights. 2007 110 TDCi Station Wagon XS
Post #942066 11th Feb 2022 2:00pm
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TamarBlue11



Member Since: 25 Sep 2020
Location: England
Posts: 226
United Kingdom 2011 Defender 90 Puma 2.4 HT Tamar Blue
Only just getting round to looking at this again. Does anyone know where the headlight circuit is earthed?
Post #963478 31st Aug 2022 8:40am
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Penfold_6290



Member Since: 22 Sep 2021
Location: Dorset
Posts: 319
United Kingdom 2002 Defender 110 Td5 CSW Epsom Green
The headlights earth back through black wires, they run in the main loom on either wing, there will be two large connectors next to the bulkhead, one each side, then the earths go to an earth header on the bulkhead.

I'de be inclined to unplug the headlight bulbs, switch the headlight switch on and then see if the crackling exists. If it doesn't crackle, replace one plug at a time to see if it is created on one side rather than the other. Bear in mind the headlight circuit also provides current to other circuits such as rear fog light and headlamp levelling motors (if fitted).
Post #963868 3rd Sep 2022 9:48am
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