2004 Chevrolet Silverado, Manual to Auto Door Locks, Avital 5305L

I have a 2004 chevy silverado base edition without power windows and door locks. I was told that i could swap out doors and everything would be plug and play. So I went out and got some doors from a 2004 silverado with power windows and door locks. Swapped out all the internal parts plugged them in and came to find out its not plug and play. My truck does not have factory wiring for power doors and windows. The only electrical connections to the door was the speaker wires and the door ajar switch signal, which comes from the lock actuators. The new door panels have the ddm and pdm to control the windows and locks. Can these be wired as a stand alone unit or can I wire them into the gm data bus interface. I will also be connecting an Avital 5305L and was wondering how i would be able to get door lock signal since i wont be able to get it from the bcm.

https://www.the12volt.com/relays/relaydiagram48.html

From switch = door lock and unlock wires of your alarm system.

Thanks for the reply. Im still a little confused on this wiring. Looking at this diagram

Will the door locks work without the brown wire going to the data link connector. I was hoping that i could just connect power and ground to each door module and run 2 wires from the driver door to the passenger door switch. A wire from tan to tan and one from grey to grey.
Or would I need to completely rewire each switch with new relays to get this to work. Im going to provide some extra wiring diagrams that may help.

Is there a tan and a grey wire going into the latch mechanism of both doors?

Yes there is

Im installing my alarm now and have a question according to these pics do i need to connect anymore wires? The ones with red x's are the ones that have been connected.

how would i use a relay to power acc2? What wire from the R/S would go to the relay? I cant get the R/S to work. When i press the button i hear the module clicking but nothung happens after. One of the troubleshooting steps is to power the acc2 wire. I dont understand what that means.

This is my connections right now. I dont have the door locks connected as i am waiting for relays to arrive. The alarm function works fine. But the remote start will not start the truck. The module clicks but does nothing. When checking the connections all the 12 volt Constants are getting 12 volts. The ignition wires also get 12 volts in the start position.the accessory wire does not get 12volts in the acc position only in the run position. The brown wire in the ignition harness gets power in the acc position and run but that is not connected to anything. When i press the remote start button there is not voltage on the purple wire but when i turn the key to start it i see voltage there. I can start the truck with the key. Any help would be very much appreciated.

SPDT 30/40 Amp Relay for ACC2

Relay Pin 85 to Viper White 24 Pin Orange (-)ACC2 output at Pin 23    
Relay Pins 86 and 87 to +12V Constant fused at 25 Amps
Relay Pin 30 to Silverado Brown ACC2

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Soldering is fun!

Thank you, I have some relays coming tomorrow ill give that a try once they get here. Is it normally necessary to have to power the acc2 wire? I have seen other installs where nothing was connected to the brown wire. Is it vehicle specific or does it depend on what type of accessories pakage you have in your vehicle?

I haven't seen a 5305 but if it's like other Viper units you will want to run the Black/White wire on the White 24 Pin harness to Chassis Ground to allow a R/S. Assuming your truck has an Auto Trans. Include the kit supplied switch if you want an easy Valet Mode. You could connect it to the Emergency Brake wire if you normally set the Parking Brake.

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Soldering is fun!

chevyboiwavy wrote:

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Thank you, I have some relays coming tomorrow ill give that a try once they get here. Is it normally necessary to have to power the acc2 wire? I have seen other installs where nothing was connected to the brown wire. Is it vehicle specific or does it depend on what type of accessories package you have in your vehicle?

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Pretty much depends on the vehicle. It does handle various accessory circuits. I usually power it just to duplicate a normal ignition switch sequence.

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Soldering is fun!

Yeah my truck is automatic. I seen the valet switch but wasn't going to connect it cause there was no directions on where it goes. If i connect it to the parking brake does that mean i have to apply the parking brake in order to use the switch?

Yes, the Viper must see Chassis Ground on the Black/White wire to allow a R/S. With an A/T vehicle most installers go right to Chassis Ground. You must use the Parking Brake for a M/T vehicle.

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Soldering is fun!

Thank you so much for you help. Now im stuck at work and cant wait to get home to wire this up.

kreg357 wrote:

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Yes, the Viper must see Chassis Ground on the Black/White wire to allow a R/S. With an A/T vehicle most installers go right to Chassis Ground. You must use the Parking Brake for a M/T vehicle.

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Just wanted to say thanks again I connected the black and white wire to ground and connected the relay as you said and it fired right up really apreciate the help.

Enjoy! Just in time to cool the truck down prior to entry. Man it's hot!    

             8D

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Soldering is fun!