 | Home > Puma (Tdci) > Con”fuse”ion! |
 
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3664   
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If you have a tester check for a 12v positive at the reverse light fitting with the ignition on, if you have 12v then the fuse is OK and it is the negative that has failed, and then its likely the reverse switch on the gearbox that is at fault, or the wiring between the switch and lamp fitting DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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14th Dec 2021 9:26pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3664
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double post!
https://www.defender2.net/forum/topic3724.html DEFENDER 90 TDCI XS, I hope everyone is well and your land rovers make you happy |
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14th Dec 2021 9:28pm |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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I don't know why but switch failure seems common on Puma models. I had to replace mine a little while ago and described it here:
https://www.defender2.net/forum/post733726.html#733726 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 |
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15th Dec 2021 7:56am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17725 
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It's either because "they don't make them like they used to" (the mantra - one of several - of we old folk), or it is because the spirit of Lucas, Prince of Darkness, lives on in the Puma Defender as an heritage feature.
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15th Dec 2021 9:23am |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3664
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LOL
 DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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15th Dec 2021 6:13pm |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3707 
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Thanks all, but does anyone know where the fuse is?
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15th Dec 2021 7:00pm |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3707
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Found the fuse, under the seat. Belled out fine. Got 0V at the bulb testing between the plug and the cross member bolts. Would that be a good enough earth back?
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15th Dec 2021 8:04pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3664
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Hi
ignition on, check for 12v between earth and the fuse holder just to be sure you have some volts at that point, if you have but you have none at the reverse light plug it suggests a break in the route from the fuse holder to the plug which would be unusual. just to be sure that the reverse switch is OK (ignition off, car in reverse) using the tester continuity test, check for continuity from the reverse light plug -ve connection to earth, it should be zero resistance (buzzer buzzes if it has one the same reading as if you connect the two tester wires to each other) with the gear stick in neutral it should show infinite resistance, same reading as if the wires on the tester are not connected. DEFENDER 90 TDCI XS, I hope everyone is well and your land rovers make you happy |
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15th Dec 2021 8:22pm |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3707
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Much appreciated. Thanks for taking the time.
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15th Dec 2021 9:04pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3664
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https://www.lrworkshop.com/electrics/defen...nd-headers
Hi this is for a 2.4 but be surprised if 2.2 was different and shows the fuse as fuse F14 ID 10 under the dash as per your first post, not under the seat DEFENDER 90 TDCI XS, I hope everyone is well and your land rovers make you happy |
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15th Dec 2021 9:11pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6662 
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Reverse switch feed on a 2.2 is Fuse F10 under the seat.
2.4 and 2.2 electrical wiring is quite different, 2.2 has a large underseat fuse box. Highly likely to be a failed reverse switch - lots of posts on here with exactly the same happening. You can get 12V showing up at the reverse light connector on a multimeter, but the switch contacts have gone high resistance so virtually no current flows and the bulb won't light.  1988 90 Td5 NAS soft top
2015 D90 XS SWLast edited by Martin on 15th Dec 2021 10:17pm. Edited 1 time in total |
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15th Dec 2021 10:15pm |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3707
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This is what’s throwing me. That fuse on my under dash fuse box is the wipers/washers. I haven’t actually checked this fuse though, so worth a look. I suppose the sticker could be wrong?
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15th Dec 2021 10:15pm |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3707
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Thanks Martin. I’ve got 0V at the switch connectors and the fuse continuity is OK. Am I right in saying that all that is left is damage to the cable? |
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15th Dec 2021 10:17pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6662
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It's listed as F10 on both my 2012 and 2016 wiring diagrams, there's a slightly chance it's different on your 2013 but unlikely.
F12 is/should be wipers. 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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15th Dec 2021 10:19pm |
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