> Neither of them have any need for "software updates" nor do they have any way to do so.
Pretty sure they could get firmware updates for the ECU and TCU. There's probably somebody doing ECU tunes for more power / better efficiency / better noises, even if that's just tweaking the tables ajd even if there are no factory software updates. Electronicly controlled transmissions often have some updates available over their early service life, even if they're not well publicized or pushed. ODB-II is commonly used for that, although maybe the 1995 would need modules removed and rom chips replaced.
Yes, and there are aftermarket standalone transmission and engine controllers available. Another thing people do is stick another node in the CAN network which intercepts packets and rewrites them. But what I meant is that the cars, when they were shipped, were done. Like, they struck the right balance between features and complexity s.t. the product that was shipped was complete. That's the kind of equipment I like to depend on, not something that's a constant experiment.
Are they fully reflashable or can be just parameter adjusted? I have a random power steering ECU, it came with a mask ROM variant of a Fujitsu MPU. Having a microcontroller != having a field malware programmable micro.
Pretty sure they could get firmware updates for the ECU and TCU. There's probably somebody doing ECU tunes for more power / better efficiency / better noises, even if that's just tweaking the tables ajd even if there are no factory software updates. Electronicly controlled transmissions often have some updates available over their early service life, even if they're not well publicized or pushed. ODB-II is commonly used for that, although maybe the 1995 would need modules removed and rom chips replaced.