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Since the early 2000's most cars have been using a drive-by-wire system for steering. They aren't exposed on OBD2 though, that's just for legacy emissions. Mo
by qbasic_forever 6y ago
Since the early 2000's most cars have been using a drive-by-wire system for steering. They aren't exposed on OBD2 though, that's just for legacy emissions. Most are on a CAN bus but there isn't some big standard to control them all--it's very much a manufacturer by manufacturer thing right now.
- bri3d 6y agoThis is only partially true - the only cars which used "real" drive-by-wire (wheel -> computer -> steering actuator) were a few Infiniti vehicles, and even then they had a clutch which could re-engage a physical steering column. Rather, a few cars in the early 2000s and many since the early 2010s or so offer electric power steering assist: the steering wheel is still very much connected by a physical steering column to the steering rack, and normal steering input is purely physical - there's just also an electric motor attached to the rack to provide the usual power steering boost. And, that power steering assist can be controlled over a non-diagnostic CAN bus to facilitate LKA.