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Climate Control

dsteinGA

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dsteinGA Enthusiast

dsteinGA

Posted
Posted

Is there a way to take out the stock analog heat & air control and install electronic climate control like the Denali has?

 

Better yet, has anyone done it?

 

- Dave

Shaners Senior Enthusiast

Shaners

Posted
Posted

If anyone has done it or can help you through the install process check out our preferred vendor "JP CUSTOMS" in the left hand column of your screen.  He has upgraded and sells upgrades for most all of the GM cool electronics stuff.

 

Welcome to the forum!!!

KMT15 Enthusiast

KMT15

Posted
Posted

Waste of money.  I have it on my 01 Tahoe LT.  Even when the switch is off, the hear still kicks on when it wants, and full blast.  I have figured no way to get it to stay off, it goes on when ever it wants

 

-KMT15

  • 6 years later...
Chevydriver Enthusiast

Chevydriver

Posted
Posted

there does not seem to be any information about this subject on the internet at all.

 

I had the electronic climate control in my '03 silverado and LOVED it! Worked great!

 

Just got an '07 classic that has the manual temperature sliders. I would like to try transfer the electronic climate control from the old truck to the new one. Anybody have any useful info about this subject?

Bluedog Enthusiast

Bluedog

Posted
Posted
there does not seem to be any information about this subject on the internet at all.

 

I had the electronic climate control in my '03 silverado and LOVED it! Worked great!

 

Just got an '07 classic that has the manual temperature sliders. I would like to try transfer the electronic climate control from the old truck to the new one. Anybody have any useful info about this subject?

 

Doesn't work - can't do it - too many changes including sensors, ductwork, etc. You are stuck with what you have...

bill190 Enthusiast

bill190

Posted
Posted
Is there a way to take out the stock analog heat & air control and install electronic climate control like the Denali has?

 

I'm forever going to the wrecking yard and pulling out accessories which my vehicles don't have and adding them on. The trick to this is getting the factory service manual set (four books for my 92) so you can learn how the system works and learn about all the components and wiring needed. Then be sure to get all the components needed. Also the books will show you where all the various components are located and how to remove them.

 

The problem with this is when these things interface to a computer other than a dedicated computer which controls only the accessory. In the past, only electrical signals were sent to say the engine computer. For A/C, an electrical signal (off/on) might have been sent to the engine computer to switch on the compressor. Then the engine computer would control the compressor. In the case of being on, it would adjust idle. Or in the case of wide open throttle, it would shut off the compressor.

 

BUT!!!! These days there is software involved with these various systems. And the manufacturers control the software and are not sharing! So instead of sending an on/off signal to the engine computer, these days more likely the A/C controller and engine computer might "communicate" sending back and forth all sorts of information including diagnostic information. This is done via a "local area network".

 

So the thing to do is first order a GM factory service manual set for your specific vehicle from a GM dealer. Get ALL the service manuals and documentation which is available. Is there a separate software manual? Is there a separate climate control manual or documentation available, etc.?

 

Then read all about it and learn how the system works. And more importantly, how the climate control system interfaces to any other computer modules in the vehicle.

 

The other computer modules may or may not be able to be "programmed" to work along with the climate control system in question. The best way to answer this question would be if this climate control system was available as an option for your vehicle or not.

 

If not an option, the factory software "programmer" might refuse to to set your computer to work with the climate control system. These will only enable accessories which were available for the vehicle and nothing else!

 

So I would find that out first. Is it necessary for the climate control to talk "computer talk" to other computers on the vehicle. And can these other computers be programmed to do this with your specific vehicle and the computers you currently have?

Chevydriver Enthusiast

Chevydriver

Posted
Posted
Doesn't work - can't do it - too many changes including sensors, ductwork, etc. You are stuck with what you have...

 

Can you elaborate on the "sensors" and the "etc."?

 

I am parting out the old truck completely and have all the parts. These trucks are both the same model/bodystyle,LS, just they are 4 years apart. I have the time and all the parts so I can't see how this is impossible- it's not like I am trying to build a spaceship, just want to transfer a system from one like truck to another, even if it takes a day or two.

 

I will grab whatever manuals are available from the dealer. Thanks for the insight, Bill190. As the option was available(for $265) on the LS, I presume the expandability with the interfaces are there but I will check with the mechanics at the dealer. Any other suggestions with this from anyone before I start the disassembly?

bill190 Enthusiast

bill190

Posted
Posted

Study the factory electrical diagrams for the climate control like a hawk! Learn where each component of the system is located. You might have a relay under the hood, or burried in the dash. Or you might have two relays which look the same, but one has a diode internal to it. This would be shown in the diagrams. Good idea to mark where each part came from. Maybe take pictures before removing things as well.

 

Be very careful to compare wiring harnesses. Sometimes they will use the same connectors, but wires will be missing on the connector in the vehicle without the option. You could move the wiring harness if it is short or run your own wires.

 

Or you might have a connector which goes to a switch and it has all the wires, and one of the wires goes to a computer somewhere, but there is a connector midpoint and that wire does not continue past that midpoint connector (they left the wire out of the second harness). So be sure all the wires go "all the way" to where they need to go.

 

And read the entire section in the service manual about how the climate control works. Learn how it should work and what each component is for.

 

One time I installed factory A/C into a vehicle and the factory manual said I had to remove the steering column and entire dash to install the evaporator. I did this on the vehicle I removed the parts from, but was able to install the evaporator without removing the dash on the other vehicle (Once I saw where the bolts were). It was a pain, but possible.

 

Anyway have fun! It is fun to learn how these things operate and how all the various components work...

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