Bi-Directional control HVAC

[Jer Bear]

Does any one know if MODIS w/8.4 has bi-directional control of HVAC on GM like the Tech II does or Chrysler like DRB III does? Can't get an answer from anyone associated with Snapon. They say it has bi-directional control - this is a broad statement. Bi-directional control of what?

[Skip]

8.4 should have some HVAC for GM. It will be on automatic systems from 07 if it is there.

[KM@PROAUTOTECH]

Does any one know if MODIS w/8.4 has bi-directional control of HVAC on GM like the Tech II does or Chrysler like DRB III does? Can't get an answer from anyone associated with Snapon. They say it has bi-directional control - this is a broad statement. Bi-directional control of what?

Having HVAC data is one thing, if you are looking for blend control and fan speed and such for bi-directional very limited and varies model to model.