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RS and alarm install, 05 Chevy Express 3500


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lurch228 
Silver - Posts: 1,338
Silver spacespace
Joined: August 08, 2012
Posted: September 13, 2016 at 12:43 PM / IP Logged Link to Post Post Reply Quote lurch228
Alarm outputs that are negative are open until the alarm connects them to ground acting as the path to ground (Alarm is a switched ground). The door lock diode is there to block the Ground from the door lock from getting back to the relay when the locks are activated from the manual power door lock or factory keyless.
As long as the dome is on relay coil has positive and the door lock output momentarily closes the relay connecting the ground 87 to 30 and feeds 85 maintaining the latch until the 12v goes away.
It's the connection that feeds the second constant ground from 30 to 85. As 87 is a NO (Normally Open) no connection until coil is energized. And door lock output initializes the connection. Grounding a + input has no potential so its the same as being open.
prince504 
Copper - Posts: 108
Copper spacespace
Joined: December 25, 2015
Location: United States
Posted: September 13, 2016 at 8:03 PM / IP Logged Link to Post Post Reply Quote prince504
lurch228 wrote:
Alarm outputs that are negative are open until the alarm connects them to ground acting as the path to ground (Alarm is a switched ground). The door lock diode is there to block the Ground from the door lock from getting back to the relay when the locks are activated from the manual power door lock or factory keyless.
As long as the dome is on relay coil has positive and the door lock output momentarily closes the relay connecting the ground 87 to 30 and feeds 85 maintaining the latch until the 12v goes away.
It's the connection that feeds the second constant ground from 30 to 85. As 87 is a NO (Normally Open) no connection until coil is energized. And door lock output initializes the connection. Grounding a + input has no potential so its the same as being open.
Ok I think I get it now. But please look at the orientation of the diodes on the door lock wire. The anode is facing the alarm which means that the alarm would not be able to send a ground to pin 85 of the relay.
Also, how long after initiating the door lock pulse on the alarm remote does the relay stay energized?
lurch228 
Silver - Posts: 1,338
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Joined: August 08, 2012
Posted: September 13, 2016 at 11:56 PM / IP Logged Link to Post Post Reply Quote lurch228
Sorry about the diodes was tired and they are all backwards.
The relay can only stay on until the dome turns off once energized by the door lock (-) output.
Here's the corrected Diagram.
RS and alarm install, 05 Chevy Express 3500 - Page 2 -- posted image.
prince504 
Copper - Posts: 108
Copper spacespace
Joined: December 25, 2015
Location: United States
Posted: September 14, 2016 at 7:22 AM / IP Logged Link to Post Post Reply Quote prince504
lurch228 wrote:
Sorry about the diodes was tired and they are all backwards.
The relay can only stay on until the dome turns off once energized by the door lock (-) output.
Here's the corrected Diagram.
The diode orientation on the + door trigger input wire was initially correct. But I get the point.
Also, since you are familiar with DEI products, can any1 create an account to gain the ability to flash their bypass modules?
lurch228 
Silver - Posts: 1,338
Silver spacespace
Joined: August 08, 2012
Posted: September 14, 2016 at 1:27 PM / IP Logged Link to Post Post Reply Quote lurch228
Last time I flashed you can do basic flashing with out a account but to do the advance flashing like RSR, RXT, and 3x lock start you needed to be a authorized dealer or installer to do those. haven't done any flashing since they merged xpresskit.com into directechs.com so you will need to register here:. https://www.directechs.com/Register.aspx
If your email address has been added to the DirectedDealers.com system as a installer for an authorized Directed dealer or distributor then you will also have access to the directwire as well, otherwise you can only flash module's and access forums.
lurch228 
Silver - Posts: 1,338
Silver spacespace
Joined: August 08, 2012
Posted: September 14, 2016 at 2:06 PM / IP Logged Link to Post Post Reply Quote lurch228
Directwire
2005 Chevrolet Express Van - North America
Remote Start, Security, Keyless Entry, Accessories
Item Wire Color Polarity Wire Location
12 Volts RED / black (40A) + ignition harness
Second 12 Volts RED / black (40A) + ignition harness
Starter yellow + ignition harness
Ignition pink + ignition harness
Second Ignition white + ignition harness
Accessory orange + ignition harness
Second Accessory brown + ignition harness
Keysense lt. green - ignition harness
Data Bus yellow (resistor code), tan (ground) Passlock 2 Passlock sensor on ignition key cylinder
CAN Bus SW purple (J1850 Class 2 Serial Data) data data link connector, black 16 pin plug, pin 2
Power Lock lt. blue - driver kick or BCM, lt. blue plug, pin B5
Power Unlock white (all doors); lt. green (driver door only) - driver kick or BCM, lt. blue plug, pin B10; gray plug, pin A7
Lock Motor gray 5 wire driver kick, door harness
Driver Unlock Motor tan 5 wire driver kick, door harness
Passenger Unlock Motor tan 5 wire fuse box under driver seat, white 68 pin plug, pin A10
Parking Lights (+) brown + fuse box under driver seat, black 68 pin plug, pin E1
Parking Lights (-) BROWN / white - headlight switch or BCM, brown plug, pin B2
Hazards white - hazard switch or BCM, gray plug, pin A5
Turn Signal (Left) lt. blue/white + turn signal switch
Turn Signal (Right) dk. blue/white + turn signal switch
Headlight white - headlight switch or BCM, lt. blue plug, pin A12
Reverse Light lt. green + BCM, black plug, pin F
Left Front Door Trigger tan - driver kick or BCM, lt. blue plug, pin B4
Right Front Door Trigger lt. green - BCM, lt. blue plug, pin A5
Left Rear Door Trigger yellow/black - BCM, lt. blue plug, pin A10
Right Rear Door Trigger same as left rear door trigger   
Dome Light gray/black or dk. blue/white + BCM, black plug, pin E
Trunk/Hatch Pin same as right front door trigger   
Trunk/Hatch Release lt. blue (unlock rear cargo door only) - BCM, gray plug, pin A8
Power Sliding Door (Left) lt. blue (F), lt. grn (R) (left side access panel) - BCM, purple plug, pins B8 and B7
Power Sliding Door (Right) lt. blue (right side access panel) - BCM, purple plug, pin A7
Tachometer white (4.3L), purple (4.8L, 5.3L, and 6.0L) ac PCM on driver fender, green plug, pin 26
Fuel Pump gray + underhood fuse box, white 32 pin plug, pin C5
Rear Defroster white + latched fuse box under driver seat, black 68 pin plug, pin B12
Mirror Defroster same as rear defroster   
Speed Sense dk. GREEN / WHITE or yellow/black ac PCM on driver fender, green plug, pin 50 or 49
Brake Wire white + brake switch
Parking Brake lt. blue - parking brake switch or BCM, lt. blue plug, pin A7
Horn Trigger tan - horn switch or BCM, gray plug, pin B9
Wipers pink (L), dk. blue (H), gray (input) +,- wiper switch
Left Front Window (Up/Down) dk. blue - brown A driver window switch
Right Front Window (Up/Down) white - orange A driver kick, door harness
Page of 2

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