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Originally Posted by mobilejo
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Originally Posted by Nico2014
This is very interesting - thanks for sharing your knowledge. Am I right to say that if you remove the battery for a long period of time, the data held in the car fob would be lost? As far as I am aware, the data I am talking about is mileage of the car, what service and where the car has had...
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Or, like I said in the second post:
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A £5 RFID blocking pouch from Amazon will keep the keys 'dead' effectively - no signal being transmitted so no signal to be boosted. I use one and the key isn't recognised when standing right next to the car when its in the pouch, the signal is blocked completely
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No need to faff about taking out batteries.
Use this even if you don't have comfort access, because they can just break the window and amplify the signal for keyless go. |
Hmm, I think an RFID pouch would protect your fob from being interrogated on passive mode.
However, a fob with a battery is no longer a passive RFID, it's a freaking transmitter. So, I think the RFID pouch would be largely ineffective with an active transmitter.