Cadillac: heat controls, cadillac seville sls, cadillac seville

Question
i have an 1994 cadillac seville sls with the northstar engine in it. my heat controls are not working properlly. when u start up the car its fine but 5 seconds later it goes to auto and the temp go to 70 and the blower comes on hi and it only blows on the windsheild.

Answer
First let's see if you have any CODES in the computer.

1. Turn ignition to run.

2. Simultaneously push and hold the OFF and TEMP ^ buttons on the climate control panel for 3 seconds and then release them.

3. when you see -00 displayed, push the fan ^ switch above the fan insignia until you see -02.

4. push the outside temp button and see if you have any of these code numbers:

01
02
03
04
05
06
10
11
26
27

and let me know.