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Wiring Diagram

Chad H

By Chad H
in Audio, Electronics & Software

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Chad H Enthusiast

Chad H

Posted
Posted

Hey guys,

Does anybody have a wiring diagram for a remote start going on a 2004. I presume its the same for '03. I need the power, start, ign 1, ign 2, acc wires. Also, what are the wires for the security bypass. I hope somebody can help me with this. If i have those wires I can do this for sure. :seeya:

  • 1 month later...
rgardjr Enthusiast

rgardjr

Posted
Posted

I just put a remote start in my '03 Sierra Denali and my cousins '03 Silverado last weekend. Bulldog list the wiring as the same for '03 and '04 Silverados as follows:

 

http://bulldogsecurity.com/New%20Wires/New...evsilv03-04.htm

 

2003-2004

WIRE COLORS LOCATION

12 VOLTS CONSTANT RED (x2) IGNITION SWITCH HARNESS

IGNITION 1 PINK IGNITION SWITCH HARNESS

IGNITION 2 WHITE IGNITION SWITCH HARNESS

ACCESSORY/HEATER BLOWER 1 ORANGE IGNITION SWITCH HARNESS

ACCESSORY/HEATER BLOWER 2 BROWN IGNITION SWITCH HARNESS

STARTER YELLOW IGNITION SWITCH HARNESS

KEYSENSE LT. GREEN ( - ) IGNITION SWITCH HARNESS

PARKING LIGHTS ( + ) BROWN ( do not use ) *SEE NOTES BELOW* 1

PARKING LIGHTS ( - ) GRAY/BLACK BROWN PLUG pin B2 @ BCM *SEE DIAGRAM*

DOMELIGHT ( - ) GRAY/BLACK (L), BLACK/WHITE ® EACH DOOR MODULE in DOOR *2

DOMELIGHT SUPERVISION USE DOMELIGHT WIRES

POWER DOOR LOCK LT. BLUE ( -) LT. BLUE PLUG @ BCM *3

POWER DOOR UNLOCK WHITE ( - ) ( TYPE B) with FACTORY KEYLESS *SEE DIAGRAM* *5

TACH SENSOR WHITE (AC) INSTRUMENT CLUSTER or PCM *4

BRAKE WHITE ( + ) AT BRAKE SWITCH

HORN BLACK ( - ) or BLACK/YELLOW @ STEERING COLUMN

FACTORY DISARM LT. GREEN (-) DRIVER DOOR MODULE in DOOR

FACTORY ANTI-THEFT TYPE PASSLOCK II

NOTES:

*1 - The BCM is located behind the drivers side of the dash.

 

*2 - On BASE model trucks the door trigger wires are in the LT.BLUE plug @ BCM, pins B4 and A5. On 4 door trucks the LR door trigger wire is LT. BLUE/BLACK, pin A3, the RR is LT. GREEN/BLACK, pin A2. They are in the PURPLE plug at the BCM. Use all wires and diode isolate.

 

*3 - On BASE model trucks the lock wire is LT. BLUE ( - ) and the unlock wire is WHITE ( - ). They are in the LT. BLUE plug at the BCM.

 

*4 - The PCM (Power Control Module) is in the left front of the engine compartment to the left of the fan shroud. The tach wire is in the GREEN plug, pin 10. For tach you can also go to any of the ignition coils and use the wire that is NOT PINK, BLACK or BROWN. Wait-to-Start wire is BLUE in instrument cluster or PCM.

 

*5 - At the BCM in the purple plug, look at row B, cavity two and three should be open with not wires in then. If you make connectors for these pins you can connect them as a( TYPE B ) door locking system.

 

Don't use the Bulldog Passlock 2 bypass module-it's way more work to install than most of the others. For most of the others all you do is provide CONST 12+, GRND, splice 1 wired into the OBDII connector and one out to the remote start bypass wire. I used the Bulldog 791 and it was alot more work and there is all kind of conflicting information about how it was supposed to be wired up. We wanted to beable to use the factory fob so we had to fish a wire into the driver door to catch the lock wire(light tan wire on the latching plug). Anyway, good luck with your install. It was the first remote start I've done and it ended up being easier than I expected.

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