Chrysler Repair: no heat: 94 LH-body sedan, check fuse, diagnostic capability

Question
Hi I have a 1994 Chrysler LHS 3.5l 24 valve engine. The question i have is I have no heat? 2. is there a way to change it from F to C on the control panel? I checked the temp at themostate and it was 204 and at the hose it was 197. Can you help me out thanks

Answer
Hi Alex,
I would suggest taking advantage of the self-diagnostic aspects of the units to get a fault code readout.
The unit does have a self-diagnostic capability. The engine has to be running and the car not in motion to do the test. Simultaneously press the floor, mix, and defrost buttons, (the 1st,2nd and 4th on the top row) and see if the display unit begins to blink. Release the buttons when it has started to do that and then after it blinks for a while longer watch for two digit numbers to appear on the readout. Those are the fault codes. If the first number appears and stays in place, push on the first button in the bottom row (panel) to continue the readout. At the end of the readout the unit will return to normal settings.
Then write back with the number(s) and also tell me more about exactly what is wrong with the function of the unit.* The numbers range 23-36.
If the head unit doesn't respond at all, then check fuse #6 under the dash. There is also a 12V supply line to the control that is directly connected to the battery on a black/pink wire on the green plug on the rear of the control unit that should be checked to verify that you are getting that power to the control unit.
I don't happen to know how to change from F to C but you might try pushing in on the temp control knob as on possibility.
Roland