Working on a 2004 GMC Envoy vin 1GKET16SX46172779, for problem with no blower fan in the rear auxiliary heater/AC. Snap-On 14.4 has no access to the rear HVAC module for codes, data or tests. Makes diagnosis very difficult and time consuming. Bidirectional controls allow commanding the fan motor on and off while viewing data, doing an actuator re-calibration, controlling the mode door, mix door and water valve. Had to resort to a different scanner again. This is an 11 year old vehicle and I think it's pretty common in Canada and the US.
On another note the Snap-On software will not auto id or network scan this vehicle which it obviously supports. There are other missing controllers as well.
On another note the Snap-On software will not auto id or network scan this vehicle which it obviously supports. There are other missing controllers as well.
Comment