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Topvaruk

Member Since: 25 Apr 2018
Location: bratislava
Posts: 67

2010 Defender 90 Puma 2.4 ST Aintree Green

10AS replacement - CL upgrade

Hello all.

I have spent hours reading up on this and can’t find the answer.

Just a point of note I live in the EU and access to independents and other helps is very hard to find so I try to do as much as I can before I go to a dealer - they aren’t great on older cars and charge me for their own learning time.

2008 2.4 puma - basic spec

I am fitting CL and electric windows. Have got all the parts now to start.

The first task I want to crack is the 10AS swap. I have got hold of the version with the CL relay.

Question is (happy for a PM if anyone is concerned about posting sensitive details), with the new 10AS fitted to the bulkhead can I transfer/copy the data from the old one before swapping the plugs over?

I have a nano - seeing mixed info on here about if it can do it.

Or do I need to go to a dealer and get them to set it up?

Any guidance would be appreciated. 2010 90 LHD soft top
2010 110 XS
1985 90 soft top

22nd Jun 2025 4:49am

Ianh

Member Since: 17 Sep 2018
Location: Essex
Posts: 2408

You only need to do 3 things to configure a replacement 10AS to your Puma. So no need to do a data transfer. All can be done with your Nanocom if it’s at the latest build level.

1. Set the Immobiliser to the correct engine management. Eg TD5/MEMS/PUMA.

2. Undertake an EMS resync . This pairs the 10AS with the ECU so it can de-immobilise the engine ECU.

3. Undertake a Plip learn for all fobs.

Most of the other settings you will need to configure anyway as they are related to the central locking that you are adding.

What you can do is go through the setting of your current 10AS, take few pictures of the current setting screens, then manually check / set the settings on your replacement 10AS once fitted. There aren’t that many to check.

Have a look at the Nanocom emulator to see the options menus and screens
https://emulator.nanocom-diagnostics.com/#

22nd Jun 2025 1:18pm

Topvaruk

Member Since: 25 Apr 2018
Location: bratislava
Posts: 67

That’s what I love about this forum

Boom - decent answer within hours

Thanks very much Ianh 2010 90 LHD soft top
2010 110 XS
1985 90 soft top

22nd Jun 2025 4:24pm

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