Hi , I have been trying with no success to do an actuator calibration on the rear mode and blend actuators on the 2007 Dodge Durango with manual controls. It will read true for all actuators except the rear mode and blend on the auxiliary unit. I can disconnect either of those 2 actuators and do a calibration and it will calibrate the one that is still connected but it will not calibrate either of them if they are both connected. I'm at my whits end because it will not set any codes and I am at the point where I co not know if its a problem with the vehicle or the scan tool. I tried replacing the actuators by using 1 new actuator and replacing them 1 at a time to see if 1 was causing a problem but that yielded no positive results.