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05 silverado crewcab, need advice


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profuse007 
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Joined: October 20, 2002
Location: Texas, United States
Posted: March 18, 2005 at 12:12 PM / IP Logged  
vehicle: 05 silverado crewcab
unit: clifford matrix rsx3.5 alarm/RS/ke
bypass:555U
data bus:456G
searched for it but didnt come out w/ too many answers. i need any advice or trick b4 tackling this.
i have not done any car that has data bus. anything particular important when messing w/ the data bus wires?
theres 4 ign/acc thats on the DEI techsheet. do i need to power up all of the acc wires? which one need and which one dont need?
door trigger and disarm, any other way using wires inside   the cabin?
Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
mladams 
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Joined: April 11, 2004
Location: United States
Posted: March 18, 2005 at 1:22 PM / IP Logged  
you'll really want to use the digital interface, this will make sure nothing is triggered as far as the stock alarm.  That and the door locks and everything are extremely computerized in vehicles that new.  As far as the ign/acc wires go, you can apply 12 volts to each of them to see what comes on.  You will definitly need all of the ignition wires.  One acc wire may be for the radio and the other for climate control.  Just play with both of them and see what each of them activates.  You may need to activate both of them for the computers sake.  Some of the cars monitor things like that to make sure everything is in proper running condition.  So try things out but remember when applying 12volts to any wire make sure you use a wire with a fuse on it so if anything shorts ar causes a problem you protect the circuitry with the fuse.
Matt Adams
Electrical Engineer Major
York College of PA
Chevy Cavy Rally Sport
tech_advice 
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Joined: March 10, 2002
Location: Canada
Posted: March 18, 2005 at 3:35 PM / IP Logged  
You only need to power the pink and white ignition wires and the orange acc.
Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: March 18, 2005 at 4:09 PM / IP Logged  
Door locks are databus only and Passlock II you can use databus as well. Aside from this the vehicle is very basic, much the same as the older Chevy's.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
ziggyb222 
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Posted: March 18, 2005 at 7:09 PM / IP Logged  
I use the crimestoppers GM-U7 on all of these trucks.. If there is heated seat and mirrors it will turn them on when below a certain temp.. also does oem alarm disarm,doorlocks,passlock.. It is the most user freindly unit out there.. no programming necesary...just my preference...
profuse007 
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Posted: March 18, 2005 at 8:38 PM / IP Logged  
thanks adam, jeff and others for the replies.
just looked at a Directwire techsheet, imma use the 457G instead to interface both doorlock and passlock II.
not quite understand about the ign harness on the 457G. the diagram shows for Caddy only. will the passlock II use that pink wire from the silv3erado ign harness too?
Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
JWorm 
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Posted: March 19, 2005 at 5:51 PM / IP Logged  
profuse007 wrote:
not quite understand about the ign harness on the 457G. the diagram shows for Caddy only. will the passlock II use that pink wire from the silv3erado ign harness too?
That secondary harness is only used for Passkey III vehicles. You will not need it.
profuse007 
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Joined: October 20, 2002
Location: Texas, United States
Posted: March 20, 2005 at 5:08 PM / IP Logged  
thanks. ill post the result soon
Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

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