If you notice the EPS (Electric Power Steering) has a CAN (Controller Area Network) bus connection.
The CAN bus is a network over which up to 70 ECU (Electronic Control Units) can communicate with each other.
Data such as speed, RPM, emissions related sensors, safety etc. is/are shared.
Modern cars and trucks have an OBD-2 connection for diagnostics. OBD-2 connects to the CAN bus.
Why do manufacturers have a design where the EPS is connected to the CAN bus connection?
Primarily for speed and safety.
At 80 MPH you don't need a steering system that feels too responsive "whippy".
At 10 MPH you don't need a steering system that feels like an original 50's AD with super wide tires.
For safety, the system needs to know when the brakes are applied.
So what's my point? This discussion is in the Driveline section of Stovebolt and not the HiPo section.
Steering is the #1 priority. If you install EPS in another application or modify it with your own design, you take on the legal liability.
There is more to EPS that what you learn on a video link. Don't go at it blindly. Do some research and play safe.
