Just a Hi, am new to the forum with a well used 2005 MT. Has some issues I need to resolve.

 

Welcome.

Do you want to tell us about it, or are we supposed to guess?

 

Haha, i bet you a cookie you can't guess
I was going to wait until I had permission to post in the regular forums; right now I can only post in 'New Member Forum'.

Anyway, since you asked:

I have an issue with my heater/AC controls. Everything works except the center control (with AC, defroster, circulation etc). The blower fan works fine, and I have put it in to the 0-16 temp mode and it steps through them all fine.
When I press any of these center control buttons, it beeps, but nothing happens (the indicator lights don't come on).
All fuses are tested and good.
I resoldered the temp **** anyway.
When I turn on the car lights, the control panel backlights come on correctly.
If it beeps, presumably that means it is all connected ok?
What else can I try?

 

I don't think mine beeps.
If it does, it never registered.
Did you try the Electrical or Troubleshooting threads?

 

The beep can be turned on or off (mine is obviously turned on). I'd prefer it be off, but leaving on while trouble shooting.

I have tried the other forums/threads, but can't find an issue quite like mine. They are mostly centered on the bad solder on the temp dial.

 

BC you can turn the beeps on or off.

OP is it an aftermarket radio or the factory one?

 

It's the factory radio. It all seems to be stock, wiring hasn't been hacked up etc.

 

what MY is your 8?
have you had the radio out recently?
are your sure you plugged it all back correctly?
have you removed/replaced the battery recently?

 

It's a 2005.
It sat for 18 months or so (occasionally moved around the warehouse). When it was started it was noted that controller wasn't working, and so since then, Yes, the radio has been out (thats how I resoldered the temp controller board); Yes the battery has been disconnected, and Yes I'm certain it is all plugged in correctly. If it wasn't, I don't believe the backlights would work, nor would it beep when the buttons are pressed (though thats one of the questions I'd like to answer - is the power & beep independent of the actual functions?).

 

Here is a video showing the problem

 

Loose connection, or a damaged control bored(possible depending on how you pulled out the radio)

The upper display should have the selected vents on display
like so

(the amb temp can be turned on or off with the amb button(upper right))

 

Now that you say that, I think I did see the Beep selector on the audio selector.
Derp.

 

Ahh, look at that. This makes sense. So the little board that the buttons are on is what 'powers' the data on the LCD directly? there isn't a separate climate computer or anything of that nature?

 

I tried a different (tested working) control unit, no change.
I disconnected the AC amplifier and it all behaves exactly the same, so that is my current suspect.