Location of the "T-Box" telematics ECU

There is a module on the car which handles 4G/3G/V2X connectivity and is used for eCall and communication with the phone app, called the T-Box. Here's a picture:
1725820433372.png

1725820457457.png


I'm investigating the possibility of disabling the car's ability to connect to cellular networks. I know the T-Box has a fuse, and I'd like to know how the car would react if that was pulled. Alternatively, I'm investigating replacing the aerial connection with a 50 ohm dummy load. I expect this will make the car behave similarly to if it had no service.

Thoughts and ideas welcomed!
 
I don't want the car calling home.
If you mean China, then install a raspberry pi with pihole as your dns server at home.
Why?
You will see your tvs and other devices sending information back "home" , continually.
 
I should imagine that disabling the comms would result in having "eSOS unavailable " popping up on your screen all the time . That would be too annoying for me to consider . I'm also a bit wary of messing with the built in electronics on any car leave alone a fully electric one
At the end of the day ,it's all up to the user :)
 
If you mean China, then install a raspberry pi with pihole as your dns server at home.
Why?
You will see your tvs and other devices sending information back "home" , continually.
I'm a computer guy by trade, I understand the technology. But there's quite a big difference between Apple and the Chinese state.
 
I should imagine that disabling the comms would result in having "eSOS unavailable " popping up on your screen all the time . That would be too annoying for me to consider . I'm also a bit wary of messing with the built in electronics on any car leave alone a fully electric one
At the end of the day ,it's all up to the user :)
Yeah I expect that message would come up based on screenshots I've seen. So long as it's just a popup, that's fine. It's a good point to make about messing, but I don't plan to do anything drastic enough to cause damage.
 
There is a module on the car which handles 4G/3G/V2X connectivity and is used for eCall and communication with the phone app, called the T-Box. Here's a picture: View attachment 30106
View attachment 30107

I'm investigating the possibility of disabling the car's ability to connect to cellular networks. I know the T-Box has a fuse, and I'd like to know how the car would react if that was pulled. Alternatively, I'm investigating replacing the aerial connection with a 50 ohm dummy load. I expect this will make the car behave similarly to if it had no service.

Thoughts and ideas welcomed!
F495ATBOX
 
Verwijder het handschoenkastje (de klep). Bovenaan zie je de TBox hangen, bevestigd met 2 boutjes.

[ Moderator: Please post in English. Since this is your first post (welcome!), and such a potentially useful post, I've translated it rather than deleted it, this time.
Google translation: ]

Remove the glove box (the flap). At the top you will see the TBox hanging, attached with 2 bolts.
 
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Worth a watch, the car sos system is down near the end.

Any sim card is vulnerable and with government backing it is much easier to track people.
 

Worth a watch, the car sos system is down near the end.

Any sim card is vulnerable and with government backing it is much easier to track people.

Drive near any major road, urban area.etc there are plenty of ANPR and cameras around.

If a government agency want to track a car they probably don't need to resort to tracking the ecall/comms module sim.
 
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