If the heater blower fans don t come on then look in the main box fuse for a blown fuse also.
Remove door panel 01 deville.
Use a flat screwdriver to pop the panel off.
Insert a flat bladed tool into the top service notch in order to disengage the locking clip 2 located at the front of the manual lock knob 1.
Otherwise the problem is in the heater control module where you turn on a c and the heat that panel has a.
Feel free to contact me with any questions.
Position the window fully downward.
The a c fan should come on only when you turn a c on at the dash panel only.
Position window fully downward and ensure manual lock knob is in unlock position.
Theres one in the door handle lever cover theres two in the door handle pulley lift up to exspose them that will release the top half for the bottom half once you ve removed the top you ll see two screws exposed for the bottom half then remove the red lightcover at the end of the doors armrest its one there then remove the lightcover which may be.
It has nothing to do with the heat.
Open the door all the way and roll the window down completely.
Remove the phillips screw from behind the panel.
2000 2001 deville door panel removal.
Here is how to remove the front door panel on your deville.
Disconnect locking clip at front of manual lock knob by insertingsuitable flat bladed tool into top service notch.
Ensure the manual lock knob 1 is in the unlock position.
Remove manual lock knob.