Support for j1850 VPW/PWM?

So far, this is the most detailed spec I could find:


(Somene already posted this, but the thread is getting long).
It says almost nothing about the entertainment system, other than the address range reserved for it.

Hi I’m looking for an ET7190 demokit to experiment j1850PWM with. Anyone know where to get one or have one they don’t want/need any more?

Thanks.