Front defrost and leg vents dosen't work

Yes it sounds like you're messing with the servo or dampers or the damper motor that positions the vents to where you want the air to escape and blow on you or not working there are many reasons Yes it's a pain in the butt to take it apart many people don't opt to do so. Sometimes on these cars when I have this problem I can get them into a position where I can leave them pretty much year-round so I don't ever really fool with him I'm not under any speed requirement so I don't have to jump in the car and roll out the driveway at a certain time in the morning everyday than inclement weather like Frost and fog.

 

There's a whole bunch of discussion on this site about the vents You can look in a search on this site there is pages and pages and pages and pages of discussion about this You could read for a whole night I promise I have looked I haven't done all the reading You will age a year looking through all of it basically it comes down to the servo motor devices that are bolted to the air box that swing pieces of plastic back and forth to make positions equal to the pictures on the multifunction display I am sure if one wanted to you could unplug the devices the motors push the plastic pieces to where you want them to stay and that would be that but humans aren't that simple they're going to want to be pushing a button all the time and playing with things that's how they got broken in the first place so there's always that It's a kind of a pain to mess with but you'll get it there are pictures lots of discussion and more pictures that is really here I'm no one is going to come and retype all of this again I'm pretty sure I don't know if in other countries Prius shows up and different respective languages or not but I kind of doubt it.

 

Did redirecting the air ever work?

I had the same problem after the dealer replaced the evaporator - they forgot to reattach the cable for that servo. More commonly mentioned on these forums is when the servo itself has gone bad. Search for those threads.

 

B1443 is the code for the air outlet servomotor not seeming to move when the A/C amplifier wants it to, so that fits the picture.



On a gen 2, this servomotor is on the driver's side of the HVAC unit, the opposite side from where the blower is. (At least, that is true in the US. Is driving in Ro also on the right side of the road?)

So it seems unlikely to me that replacement of the blower should have disturbed this servomotor on the far side of the HVAC unit. But perhaps it is worthwhile to think back on what was done, any other electrical connections disturbed, for example.

I have not inspected a gen 2 HVAC unit up close. It may be possible that even though the servomotor is on one side of the case, there could be some of the moving linkage for the outlet vanes on the other side, near the blower, and the blower replacement could have knocked something out of position there. Or some object could have entered the HVAC case and be obstructing the vanes inside.

The B1443 code indicates that the A/C amplifier drives the servomotor to move, but does not see the position sensor reading change to show it has moved. While this can mean an electrical problem or a problem in the servomotor itself, it can also mean the mechanical movement is jammed or obstructed by something.