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110 Iain



Member Since: 11 Nov 2019
Location: Scotland
Posts: 82

United Kingdom 2008 Defender 110 Puma 2.4 USW Chawton White
Electrical gremlins
Sorry tale simply went to change cab interior light bulb as I put it in pop heard fuse going radio stopped working
Thought no problem changed fuse interior light now w orking but only when ignition off ? Also expensive touch stereo
Dead it has 15 amp fuse on back and it's fine put old simple stereo back on worked ok any ideas how circuit could blow stereo without blowing fuse on stereo and why interior light only working with ignition off cheers Endeavour To Persevere
Post #970667 10th Nov 2022 7:07pm
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discomog



Member Since: 09 May 2015
Location: Notts/Lincs Border
Posts: 2496

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Santorini Black
On many modern radios once the power supply has been interrupted it is prevented from starting up until you re-enter the security code. This is to discourage little scroats from nicking your radio as once the power is disconnected it is useless without the security code. Defender 90XS SW
Mini Countryman Cooper S
Morgan Plus 8
Post #970685 10th Nov 2022 9:43pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19578

United Kingdom 
The back plate in the interior light is grounded, and close to the live pin of the light fitting.
It’s easy to short the two with the end of screwdriver or LED / light bulb fitting being fitted.
Especially, if you didn’t turn the switch off first.

Remember it has two lives, the AS10, permanent on and finally off. Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧


Last edited by custom90 on 11th Nov 2022 7:27pm. Edited 1 time in total
Post #970688 10th Nov 2022 9:48pm
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MussEd



Member Since: 20 Feb 2013
Location: East Lothian
Posts: 345

Scotland 2013 Defender 110 Puma 2.2 USW Baltic Blue
Yep what Steve says. You’ll have to replace the 15amp fuse in the Auxilliary fuse box under the steering wheel. It’s same circuit as the clock. F29 maybe? Obviously I know this having done the same as you…
Post #970702 10th Nov 2022 10:40pm
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110 Iain



Member Since: 11 Nov 2019
Location: Scotland
Posts: 82

United Kingdom 2008 Defender 110 Puma 2.4 USW Chawton White
Only on a defender can changing a £1. 00 bulcause issues bit confused over fuse board under steering wheel no info on over panel
Also diagram and Haynes manual shows obd on left of panel but it is on right do the fuses still relate also comedy fuses some just fall out
Have put old stereo in and working interior light only works with ignition off in both key positions? Endeavour To Persevere
Post #970731 11th Nov 2022 10:28am
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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
The interior lights are controlled by the alarm module, so you've almost certainly blown one or more of the fuses that relate to it. It's not at all obvious, I'm afraid, so can only recommend going through and checking all of the fuses under the steering wheel.

I once caused a short circuit whilst changing an indicator and had to replace fuse sperate fuses to get everything back working again! 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 #970732 11th Nov 2022 10:42am
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macfrank



Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 993

Germany 2015 Defender 110 Puma 2.2 SW Keswick Green
110 Iain wrote:

Also diagram and Haynes manual shows obd on left of panel but it is on right do the fuses still relate also comedy fuses some just fall out


Just check all of them, then.
OBD left is for LHD. For RHD it's mirrored. Maybe someond can post the UK label, as I only have the LHD version?


Last edited by macfrank on 11th Nov 2022 8:17pm. Edited 1 time in total
Post #970747 11th Nov 2022 12:48pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19578

United Kingdom 
The fuse details are on the back of the access door usually when looking at the fuses, F29 does ring a bell to me as well.

If you have a Multimeter.

You can pull each fuse out one by one and then replace one by one, and do a visual check or continuity check each fuse in situ.
If you’ve got a beep on each fuse by placing the probes in the little holes on the fuse each side of the fuse rating then the fuse is in-tact.
If no beep then it’ll be the blown fuse. Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #970811 11th Nov 2022 7:34pm
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110 Iain



Member Since: 11 Nov 2019
Location: Scotland
Posts: 82

United Kingdom 2008 Defender 110 Puma 2.4 USW Chawton White
Of course sticker on fuse panel is long gone it's a 110 commercial hardtop with 250k so a bit abused and bodged
Big time in the past so current state of play with interior light is works only with ignition of does not work when doors open
Have changed both door switches to no avail still at a loss how stereo got killed probably just leave it keen to fix
Big leaks at back interior gutters oh the joy of landy ownership Endeavour To Persevere
Post #970819 11th Nov 2022 8:36pm
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