Reply to post: Re: Why?

Connected car data handover headache: There's no quick fix... and it's NOT just Land Rovers

MJB7

Re: Why?

Connecting the infotainment system to the ECU means that the radio can automatically turn up the volume as the speed increases (to compensate for increased engine and road noise). It is also dead useful for the navigation system to have access to the road speed from the ECU - it allows it to dead reckon inside tunnels (where the GPS signal tends to be somewhat limited).

Of course, in a properly secure system, the infotainment system would be connected to a secure module that can *read* the CAN bus, but refuses to write to it. The problem there is that another module costs dollars, and car manufacturers care about saving cents.

You may feel that remote central locking gets the balance between usability and security wrong; I don't. I value being able to remotely unlock the car - it's not a *huge* benefit, but the risk seems to be pretty low too

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