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balmybaldwin



Member Since: 17 Apr 2021
Location: Surrey
Posts: 174

United Kingdom 2002 Defender 90 Td5 CSW Buckingham Blue
Blown Fuse - interior light circuit
It seems on Friday when I reinstalled my front interior light (using the existing harness - so I know the wires are attached in right order) This blew the 10 amp interior lighting circuit.

This also knocked out the stereo head unit, and weirdly seemed to make the trip computer reset if I turned off the ignition for a reasonable period (not sure how long, but it's not instant)

Removing the interior light and replacing the fuse and the stereo has come back to life and the trip meter has now remembered 2 journeys.

I've recently done a load of work on the car installing things like roof console and a few accessories. I'm guessing I've made a mistake somewhere and somehow installing the light has completed a short, but as I'm using original harness that worked fine before I can't work out what.

Any Ideas? Fairly sure I haven't pinched it in the a pillar trim as part of what I did was install the mud deep trim


Last edited by balmybaldwin on 11th Sep 2022 8:40pm. Edited 1 time in total
Post #964670 11th Sep 2022 7:50pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3602

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
remove the fuse, reinstate the interior light fitting and then refit the fuse.

see it it blows again;

the interior light has a permanent live and the negative is switched so easy to blow the fuse if removing or refitting the light fitting guess how I know? DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #964672 11th Sep 2022 7:57pm
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Balvaig



Member Since: 19 Feb 2016
Location: Fife
Posts: 719

Scotland 2016 Defender 90 Puma 2.2 Landmark LE Corris Grey
You can blow the fuse just by changing the bulb Big Cry I did.
Just takes the slightest misalignment to short.
You should be ok if everything working again.
Post #964703 12th Sep 2022 7:16am
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11240

United Kingdom 2013 Defender 110 Puma 2.2 USW Orkney Grey
When I had mine apart to fit a third interior light, I fitted plasticard insulators to the backs of each unit avoid exactly this:


Click image to enlarge
 Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #964713 12th Sep 2022 7:57am
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macfrank



Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 983

Germany 2015 Defender 110 Puma 2.2 SW Keswick Green
@LRA neat as always Thumbs Up

Why LR decided to use the same fuse for light, clock, radio AND instrument cluster and OBD socket is beyond me. Maybe during development an engineer used slang for 'clock' and 'lights' (i.e. odometer, warning lights) and someone thought "oh, great, there's already a fuse for that. I can make my boss happy for re-using that one." Razz
Post #964762 12th Sep 2022 3:26pm
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balmybaldwin



Member Since: 17 Apr 2021
Location: Surrey
Posts: 174

United Kingdom 2002 Defender 90 Td5 CSW Buckingham Blue
great news, thanks all, will look at insulating it
Post #964924 13th Sep 2022 8:02pm
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