SKIM & PCM for diesels

I have a 2010 Jeep Wrangler, Unlimited Sports, 4 Door, 6 speed manual, 2.8L Turbo Diesel.

It needs a new SKIM, keys and maybe PCM.

Does anyone know if the SKIM, (immobiliser control module) and/or the PCM are the same for diesel engines and petrol ?

I can't see any good reason for the SKIM to be different, but every one I've found for sale only mention it's suitable for the petrol engine, with no mention of diesels.

The PCM for a petrol would have to control ignition and fuel, while the diesel only needs fuel, so it makes sense that they could be different.

All the spare parts suppliers are of course in the USA where diesels are not as popular as here. 

Any thoughts would be greatly appreciated.

Thanks.