 | Home > Puma (Tdci) > Key Fob and immobiliser issue! |
 
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| roche1800 Member Since: 07 Apr 2020 Location: derbyshire Posts: 440  |
Ian
Thanks for your advice and help to date. Yes you are a good distance! The Nanocom appears to program the Lucas10 (older fob) and ALM (presumably late 2014 and 2015 with chrome strip) fobs. How easy is it? I have a td5 and 2 Pumas and all I am thinking is at some point another fob is likely to fail … |
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4th Sep 2025 3:12pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2557 
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See the emulator https://emulator.nanocom-diagnostics.com/#
Puma 2.2 Right arrow ALM Right arrow Utility Plip learn Lear fob type - start That’s it. See also https://www.nanocom-diagnostics.com/downloads/preview/alm-ecu. Page 10 Diagnostic Capabilities - (Utility) Last edited by Ianh on 4th Sep 2025 11:29pm. Edited 1 time in total |
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4th Sep 2025 8:18pm |
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| roche1800 Member Since: 07 Apr 2020 Location: derbyshire Posts: 440 |
Ian
This is so amazingly simple albeit you have given the navigation. Are you a technician? I am so nearly tempted to go out and buy the Nanacom, just need to do some research … Thank you |
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4th Sep 2025 10:14pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2557
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Support for the 2.4 is good , for the 2.2 it initially had issues , I.e injector coding, however over the last 18 months it’s improved and things like injector coding, oil service light reset have become available via software updates.
It also supports the TD5 ( inc fob programming) but you need to purchase a separate license for the Nanocom to support Puma and TD5 vehicle’s. |
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4th Sep 2025 11:40pm |
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| roche1800 Member Since: 07 Apr 2020 Location: derbyshire Posts: 440 |
Ian,
Again thank you for the input, your knowledge is quite simply overwhelming. Do you know how much the TD5 license is and when bought is for lifetime on the device. Cheers. |
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8th Sep 2025 8:08am |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2557
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See link for pre vat prices, £55.80 to add a TD5 license to an existing Nanocom for a 2.4 / 2.2 Puma.
https://nanocom-diagnostics.com/shop/browse Have a chat with DieselDriver https://www.defender2.net/forum/member-dieseldriver.html on here re group buy and discounts . Group buy https://www.defender2.net/forum/topic65975-495.html All licences are for life, all software revisions are free, the Nanocom can be used on any defender and is not vin locked to a specific vehicle. |
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8th Sep 2025 12:46pm |
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| roche1800 Member Since: 07 Apr 2020 Location: derbyshire Posts: 440 |
I have hired a Nanocom unit to programme a new key fob.
Sadly it won’t work, what advice does anyone have. The ECU has CH on it.  Click image to enlarge Click image to enlarge Click image to enlarge |
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27th Sep 2025 11:59am |
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| roche1800 Member Since: 07 Apr 2020 Location: derbyshire Posts: 440 |
Update is I took the non working fob inside to Micro Soldering Services Uk Ltd who repaired while I waited with some soldering and new buttons AND NOW IT WORKS.
A top outfit which I can’t recommend enough in Stoke on Trent. |
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8th Oct 2025 12:58pm |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 1139  
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Good to hear! So in the end the nanocom wasn‘t needed? Do you have a close-up picture of what was soldered? (maybe good to know for a future DIY repair - obviously it is indeed the Lear fob, which I didn‘t recognise at first glance).
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8th Oct 2025 1:22pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2557
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That’s very odd, the ALM units with a serial number beginning CH were the ones with the Lucas fob and integrated radio components, I.e the same fob as the older green 10AS alarm unit. The later ALM units with the serial numbers beginning with DH were the ones with the Lear fob and external radio components. They are very different. So I’m not sure how you have a Lear fob yet a ALM CH serial number unit. |
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12th Oct 2025 1:08pm |
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| roche1800 Member Since: 07 Apr 2020 Location: derbyshire Posts: 440 |
Here is the update:
The repaired fob worked and de immobilised the engine and it started immediately. I then used the "on loan" Nanacom to programme the new LEAR key fob, went though all the steps and there was beep from the horn at the end. Now the Defender will not de immobilise of either key fob, does anyone know why this has happened. I will take the repaired key fob back to be checked to be double sure!! Here are pics of the new fob with the broken fob by the side and then a pic of the repaired fob with 3 new buttons with some soldering ... Click image to enlarge Click image to enlarge |
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15th Oct 2025 9:32am |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 1139
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Thanks for the before - after photos! It seems they cleaned the PCB
 and resoldered all the IC pins. Hard to see if they replaced or resoldered any other parts.
Can't help with the programming issue  My unqualified understanding was that you have to (re)program _all_ keys, which would explain why the first one doesn't work but not why the new one also doesn't work despite the ALM's confimation beep. |
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15th Oct 2025 3:12pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2557
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Macfrank is correct, when you program a new fob it deletes all the existing fobs and therefore existing and new fobs need to be added at the same time.
Therefore what has happened is your old repaired fob has now been deleted and your old and new fobs have failed to be added by the Nanocom. I would message blackbox solutions (Nanocom) and ask them what the issue may be. Having said that, I’m still perplexed that you say your ALM unit is the CH version yet you have the Lear fobs. As I said before the Lear fobs work wth the latter ALM DH version which is completely different to the CH version that works with lucas fobs. Given you are stuck at present with no fobs disarming the immobiliser it’s worth seeing if you can use the Lucas fob programming option to see if that works. A very long shot that makes no sense but worth a punt. |
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18th Oct 2025 4:24pm |
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