Adding power options to 2006 Sierra WT

[Carbon95]

I recently got a 2006 Sierra Ext. 1500 Work Truck and I am wanting to begin the process of adding power options. I mainly want power windows and locks, with key-less entry if possibly but not needed, and if I'm able to I'd like to add a few more such as power mirrors or even a rear view mirror with temp/compass data. Ultimately, I'm not sure what years or models I can pull from with 100% compatibility. I understand that wiring may not be there and I am prepared to deal with that, but I want to be able to pull from junk vehicles and get as much of everything as possible in one run.

 

I know I will need switches, motors and regulators, and more for the power locks and windows. What else will I need and what years/models can I pull from? What are my limitations for these options? I've heard that 04 and newer have different wiring from 03 and later, so I'm assuming 04 and up is my limit but I have yet to find a thread anywhere to confirm any of this.

 

Thank you.

[diyer2]

I could be wrong but I think this could be a can of worms.

You may have to consider the computers.

[Chris]

In a nutshell, easiest way is find a wrecked truck, take panels, harnesses, bcm, motors, and switches from it. Your limit to work with is 2003-2006. 99-02 had different wiring

[Carbon95]

From the time I've been researching this, I had a feeling some modules/computers would be needed. BCM is required? Does it need to come off a Sierra? With my year range now being 03-06, what are my models? I'm assuming Tahoe, Suburban, Yukon, Silverado, and Sierra? Correct me if I'm wrong.

[Chris]

Going full swap, stick o the trucks. BCM is what controls all the electronic goodies.

[efritz]

You will hate yourself by the end of the decision to swap... Just enjoy the fact that you don't have to worry about window motors and lock actuators failing. You basically have to install all new wiring harnesses, BCM, and panels thru out the truck...

[Carbon95]

I'm fully prepared for any frustration. Just got to find my donor truck(s) and get to it! I'll keep tabs on this thread in case someone else chimes in with anything else I could need or advise.

[dave_s]

I swapped in all the options on my 2000 Sierra, but as said before, 99-02 is different. All I had to do was swap in the dash harness and door harnesses for the power options. I needed a new bcm for the keyless entry and I also had to swap the roof harness for the auto dim/compass mirror and overhead console. Fortunately for me, I had a donor vehicle and didn't have to buy anything separate. It's really not too hard of a job and took me about 2 days to get done. I know they aren't the same, but very similar. Good luck!

[Carbon95]

So I started piecing it all together today. I got the door wiring harnesses, power mirrors, and switches from a 2004 silverado. BCM is from a 2004 sierra, and door panels from a 2006 suburban. A Frankenstein for sure at this point xD

 

Issues:

-Truck wouldn't start after installing new BCM. Putting original back in fixed it. Do I need to perform a relearning process?

-Even with other BCM in, power options would not work and discovered some missing pins in the IP fuse block that would normally match up with the door harness. I'm asumming I need a different fuse block? Any other wiring needed behind that?

-Truck no longer detects the driver door is open (I already installed the power lock and harness on this door). Could this be fixed with the BCM/Fuse block issue?

[SpartanAutoworx]

You will need to do a security relearn for the BCM. 30 min key cycle process. As for the swap adding an option like cruise control is plug and play but you will be missing some of the necessary wires in the IP Harness to make everything work. What you can do is get a donor harness and de pin it and run the wires thru the dash for the things you are missing. Would still be work but would save you from pulling the entire dash.

[Carbon95]

Makes sense for the BCM. Even if it's from a donor truck the relearn will work?

 

I did something similar to what you were suggesting for running wires where they need to be. I ran two wires from the battery to the two orange wires for the door switches. One to the DDM and one for the windows. Power mirrors would work 100% but neither power lock or window control would for that door.

 

As for the truck not detecting the door is open I think is due to the DDM. Since that sensor is now ran to that module and I don't have the serial data line connected (I'm assuming is how this works).

 

I took a volt meter for my windows and found 12+ volts between all 3 pairs (orange and ground, orange and window up, orange and window down) at the DDM. The last two pairs confused me because they shouldnt get power unless I throw the switch but it was hot all the time. What makes it more strange is that the pin for the power windows are not caring 12+ volts no matter the position of the switch. While connected, I split the two wires to the window motor open and applied 12+ volts to each one. The result was a major draw on the system and some sparks.

 

What am I missing here?

[SpartanAutoworx]

You did replace the door lock with the 3 plug one correct?

 

Yes the BCM will do the key relearn no problems.

 

Make sure you hook a jump pack to the truck while doing the key relearn. volts drop below 11.5 and the key relearn will fail.

[Carbon95]

Yes I did, but I think the DDM intercepts the signal to the BCM for that function. So until I get that completely connected it probably won't ever detect that the door is open.

 

Okay. I'm assuming that either a regular battery charger or simply putting jumper cables with another car would work too?

[SpartanAutoworx]

Yes jump pack or cables to another car will work just fine.

[amest33]

You need the dash harness, door harnesses, under dash and left side dash fuse blocks, bcm, door lock actuators, regulators, and switches. I did the conversion and it was well worth it. Text me if you have any questions. 9122947207

 

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