 | Home > Puma (Tdci) > Information request regarding Puma headlamps & relays |
 
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| ideasplace Member Since: 07 Mar 2025 Location: Essex Posts: 7   
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Hi all, Sorry if this has been answered already elsewhere but I couldn't see anything in the search that matches my vehicle.
I am trying to solve a problem with my lights on a RHD 110 2012 Puma 2.2 Hard Top (Utility) (ex Environment Agency) The headlight dipped beam is no longer working - both lamps just stopped at the same time while driving. Side lights are OK as are full beam (fixed) and flash full beam. Fuses all check fine. so I assume it's relay related or it's the stalks/switches in some way NFG. There is however a distinct lack of information on the fuse and relay boxes on-line for my model. There seems to a multitude of permutations, none of which accurately describe what I am seeing in the panel. The JLR site shows the headlight relay on the steering column fusebox but the relay it indicates (Relay6) is missing from my vehicle - there's an empty hole and no connector - and there's not much else anywhere, the Haynes manual is missing the diagram and the JLR service documentation is scant. Here's the JLR diagram: https://parts.jaguarlandroverclassic.com/p...and-rover/ Has anyone here had such an issue with their lights and does anyone have an accurate description of where the relays are in this version of the 110 are please? Many thanks. Last edited by ideasplace on 7th Mar 2025 4:10pm. Edited 1 time in total |
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7th Mar 2025 3:32pm |
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| rustandoil Member Since: 08 Sep 2012 Location: Cotswolds Posts: 808  
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I'm guessing the switch has failed..
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7th Mar 2025 4:05pm |
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| revd Member Since: 20 Apr 2024 Location: England Posts: 215
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light switch replacement is a twenty five minute/£25 job
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7th Mar 2025 5:08pm |
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| ickle Member Since: 22 Jul 2010 Location: South Vendee Posts: 1846  
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As standard, I don't think there are relays in the system, hence why switches and stalks fail.
Various looms with relays are available aftermarket to help stop the problem reoccurring HTH Keith |
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7th Mar 2025 6:43pm |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 196  
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There is a relay in the system but it just shuts off the headlights when the ignition is off. It does not remove load from the switches, sadly. It is a very simple circuit to diagnose. Just follow the trail from the battery using a wiring diagram and a test light until you get to the problem.
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7th Mar 2025 11:25pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2216
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Electrical diagrams here.
https://www.lrworkshop.com/wiring-diagram/....2tdci-lhd Headlight diagram https://www.lrworkshop.com/wiring-diagram/.../head-side |
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7th Mar 2025 11:56pm |
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| ideasplace Member Since: 07 Mar 2025 Location: Essex Posts: 7
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Ok, after a frustrating day with my head in Defender Electrics, here's my findings:
Symptoms: Dipped beam are not working, Side lights are OK, Flash is OK, Main beam is OK and tail lights are OK. I have tested from the 30A fuse to the first lighting relay (under the drivers seat) - good, then from the relay to the switches - good, then pulled and tested the stalk switches - good, Going backwards the bulbs are good, the connections from the bulbs to the dash fuses (2x10A) are good but they are not receiving power. Now here's the issue, according to the schematics there should be another relay - R123 that is inbetween the circuits above and it should be in position 6 in the dash fuse/relay board, however it is not there - there's no connector (C0282R) for it either. My vehicle is a commercial with some original dealer mods for additional fuz lights and power - and under the middle part of the dash I can see where these are fed from (why you wouldn't make that accessible lord only knows) but all these peripherals are working so I don't think it is related. The headlights lights are standard Defender OEM lights (Tungsten) lights and looking at the wiring from the headlight it all looks original. I can only think that the relay is there but located somewhere else - hidden. Any ideas folks - I am sure that collectively we can work it out and add it to the knowlege base. Thanks in anticipation Defender 110 - 2012 2.2 TCDi Hard Top Utility HD. |
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9th Mar 2025 6:33pm |
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| revd Member Since: 20 Apr 2024 Location: England Posts: 215
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When my lights failed -Td5-it was nothing to do with relays, the l/h stalk that combines indicators/dip/main/horn needed replacing. (The only operational lights were the dim-dip with engine running with the column lighting switch in position 1)
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9th Mar 2025 8:46pm |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 196
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Ok, you have full beam. That means power is getting from the battery-ignition relay-light switch all the way to the dip/flash switch which is part of the turn signal switch. After that you have no dip beam on either side. Bulbs are good.
All that leaves is the dip contact in the turn signal switch, wiring or fuse box connector. Please have another look at the turn signal switch. It is VERY VERY common for the contacts to fail. The blue wire (U) will have power and the blue/white (UW) wire will have power on full/flash. Check if the blue/red (UR) wire has power on dip. If not, it's the switch. |
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9th Mar 2025 10:06pm |
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| rustandoil Member Since: 08 Sep 2012 Location: Cotswolds Posts: 808
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You've done some decent electrical detective work there, but my money is still on the stalk / switch 😉
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10th Mar 2025 6:48am |
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| ideasplace Member Since: 07 Mar 2025 Location: Essex Posts: 7
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Thanks for all the input folks, I appreciate it.
It is certainly a strange one, not helped of course by the inaccuracies of the JLR schematics and the multitude of permutations of circuits LR have used over the years and even over different VIN in the same years! I have seen components test good but not perform correctly in operation previously and after 132k miles working for the Environment Agency in it's previous life, I guess it's not if but when that switch will deteriorate and fail anyway, so on your advice I have ordered a new Lucas one from Island 4x4. I'll do the swap next weekend and update the post. Cheers again all. Defender 110 - 2012 2.2 TCDi Hard Top Utility HD. |
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10th Mar 2025 9:52am |
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| Esben Kold Member Since: 14 Oct 2023 Location: Horsens Posts: 32  
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I am certain this is the switch as pointed out by others. When mine melted and needed replacement I think there was two different versions. One for the 2.4 and a later model for trucks with esc. I am not sure though.
Edit: Just checked local parts store and there seems to be one version |
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10th Mar 2025 5:55pm |
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| HardCharger Member Since: 03 Mar 2013 Location: Manila Posts: 756  
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This happened to me before. It was the headlight switch. No Better Friend, No Worse Enemy
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11th Mar 2025 6:12am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17669 
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The headlight switch usually kills dip and main beams leaving flash working. The dip switch usually kills either main or dip and usually leaves flash working. There are of course other faults which can cause similar symptoms but switch failures on vehicles with factory wiring are very commonplace and usually worth checking first.
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11th Mar 2025 9:27am |
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