AC Controller
Thread Starter
Racer
Joined: Feb 2002
Posts: 451
Likes: 1
From: Mount Laurel NJ
AC Controller
I have the dash all taken apart on my '90. It came with the "automatic" Heating / Air Conditioning controller, and I just can't stand that thing. I'd prefer a manual one. If I were to buy a manual controller, and I just plug it in where the automatic one was, will it work properly?
Thread Starter
Racer
Joined: Feb 2002
Posts: 451
Likes: 1
From: Mount Laurel NJ
Re: AC Controller (flyboybob)
i took out the blose system a couple years ago when i bought the car. i have an aftermarket pioneer system now. so can i get a manual AC controller then?
Burning Brakes
Joined: Jun 2003
Posts: 846
Likes: 105
From: Knoxville TN
Re: AC Controller (Feenix566)
I do not know the answer to your question, but if you can & do change to a manual controller, I would like to have the auto one (because I think mine just went south) that is if it is in good working order. 
Pro
Joined: Oct 2001
Posts: 525
Likes: 0
From: Newport MI
Re: AC Controller (da6speed)
I don't think so. I believe the manual controller has vacuum lines going to it and adjusts a cable. The electronic version just has wires, the dampers are controlled by abunch of wires & pneumatic controls behind the "loaf of bread"
Team Owner
Joined: Oct 2000
Posts: 44,772
Likes: 1
From: 63.8% of all statistics are made up on the spot.
St. Jude Donor '08-'10
Re: AC Controller (Feenix566)
The controller in the dash is not the only unit. Under the dash, well hidden is the real control unit. You have to drop the steering column and go in from the bottom up to remove it. It has both electrical connections and vacuum. The Dash unit sends signals to this controller and it opens or closes the affected vacuum valves. I don't think it would be easy to change over though I'm sure nothing is impossible if you're motivated.
p.s. I've never seen or heard of any connection between the Bose and the C68 controller. I'd like to hear more about that connection.
[Modified by joecaver, 6:20 AM 6/24/2004]
p.s. I've never seen or heard of any connection between the Bose and the C68 controller. I'd like to hear more about that connection.
[Modified by joecaver, 6:20 AM 6/24/2004]
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Re: AC Controller (joecaver)
The biggest hurdle with an electronic to manual conversion will be the vacuum harness. Electronic is to the programmer above the accelerator pedal and manual is to the control. I don't believe the connectors are interchangeable so count on buying a new vacuum harness forward of it's firewall connection. Other than that, there are few more relays involved (one for low and medium blower, another for high), a somewhat simpler harness, and then a group of resistors that replace the module mounted on the evaporator housing, which may or may not have to be modified. You might think about obtaining a service manual if you really want to try this. PCM control of the compressor clutch is the same for either unit.
Up until at least '89, the dimming of the electronic control panel lights was via a digital signal from the radio, not the light switch.
Up until at least '89, the dimming of the electronic control panel lights was via a digital signal from the radio, not the light switch.
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Instructor
Joined: Aug 2003
Posts: 107
Likes: 0
From: Aurora OH
Re: AC Controller (joecaver)
re: Bose and C68 controller connection...
Researching a problem with my '96 Olds Aurora, I recently read in the ALLDATA data base that if the Date feature of the DIC continues to show "no date available" - the solution is to replace the HVAC programmer. It is on the data bus and affects the readouts from the command module.
So there is some interplay between components (who would have thought that the date is affected by the HVAC programmer!). But, no mention of a Bose connection...
Researching a problem with my '96 Olds Aurora, I recently read in the ALLDATA data base that if the Date feature of the DIC continues to show "no date available" - the solution is to replace the HVAC programmer. It is on the data bus and affects the readouts from the command module.
So there is some interplay between components (who would have thought that the date is affected by the HVAC programmer!). But, no mention of a Bose connection...