05 Town HVAC issues

[daveandkim]

Been hearing what I thought was the blend door actuator hanging, cold weather NO heat on FLOOR either side while defrost & dash both sides & rear ducts heat / work fine? No codes twice on 2 readers. I’m ready to repair but which part? Thanks.

 

[04 LTC]

There is a self diagnostic procedure that should return any error codes. Go to this thread and follow instructions for your year Town Car.

Town Car EATC Self test

The 1992 Town Car has an Automatic Temperature Control HVAC system which does not allow for a self test feature. The 1993 and later models introduced an Electronic Automatic Temperature Control HVAC system. Each post in this thread will cover either a single model or a series of models...

lincolnforums.com

 

[07-TC-SL]

It's not OBD codes you want, that type of scanner is no help for EATC diagnosis. I had to replace 3 blend door actuators after I got my 07, your problem sounds like actuators. Some are easy to replace, some aren't.