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2004 Chevrolet Express Van 3500 Alarm/Remote Start Wiring

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=41905
Printed Date: April 27, 2024 at 2:17 AM


Topic: 2004 Chevrolet Express Van 3500 Alarm/Remote Start Wiring

Posted By: sudden impact
Subject: 2004 Chevrolet Express Van 3500 Alarm/Remote Start Wiring
Date Posted: October 29, 2004 at 8:41 PM

I am installing an alarm/starter combo in a 2004 chevy express van 3500 and I was wondering if anyone had a wiring diagram.  I have a 2003 diagram but this install needs a Passlock II and the diagram I have does not coincide with the 2004 van.  My wire colors are ORANGE / white, yellow, and tan.  I don't have the yellow, ORANGE / black, and black.  I am having trouble with the passlock II wires and the tach wire, everything else is all set.  Thanks.

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Sudden Impact



Replies:

Posted By: snguyen
Date Posted: October 29, 2004 at 9:30 PM
EXPRESS VAN       2003-2004
WIRE COLORSLOCATION
12 VOLTS CONSTANTRED / BLACK ( X2 )IGNITION SWITCH HARNESS
IGNITION 1PINK (+)IGNITION SWITCH HARNESS
IGNITION 2WHITE (+)IGNITION SWITCH HARNESS
ACCESSORY /HEATER BLOWER 1ORANGE (+)IGNITION SWITCH HARNESS
ACCESSORY /HEATER BLOWER 2BROWN (+)IGNITION SWITCH HARNESS
STARTERYELLOW (+)IGNITION SWITCH HARNESS
PARKING LIGHTS ( - )BROWN / WHITEat the BCM BEHIND the KNEE BOLSTER, UNDER PASSENGER SIDE DASH. BROWN Plug,  Pin B2
DOME LIGHTGRAY/BLACK ( + )at the BCM BEHIND the KNEE BOLSTER, UNDER PASSENGER SIDE DASH. BLACK Plug Pin E
DOOR TRIGGER( *1 )at the BCM BEHIND the KNEE BOLSTER, UNDER PASSENGER SIDE DASH, LIGHT BLUE Plug
POWER DOOR LOCKLT. BLUEat the BCM BEHIND the KNEE BOLSTER, UNDER PASSENGER SIDE DASH LIGHT BLUE Plug Pin B5      ( TYPE "B" )
POWER DOOR UNLOCKWHITEat the BCM BEHIND the KNEE BOLSTER, UNDER PASSENGER SIDE DASH LIGHT BLUE Plug Pin B5      ( TYPE "B" )
TACH SENSOR( *2 )at the PCM on the DRIVERS FENDER, GREEN Plug Pin 26

BRAKE

WHITE ( + )at the BRAKE SWITCH
HORNTAN ( - )at the BCM BEHIND the KNEE BOLSTER, UNDER PASSENGER SIDE DASH.    GRAY Plug Pin B9

FACTORY  ANTI-THEFT

PASSLOCK 2Requires part #791 bypass module

   NOTES:                                                     

*1 - The DOOR TRIGGERS are at the  BCM in the LIGHT BLUE PLUG, the DRIVERS DOOR is TAN in PIN B4, the PASSENGER and REAR CARGO DOOR is a LIGHT GREEN in PIN A5, the SLIDING DOORS is a YELLOW/BLACK in PIN A10, YOU MUST USE  DIODES AND ISOLATE EACH wire.

*2 -  The TACH WIRE on a 4.3L is a WHITE WIRE in the GREEN PLUG PIN 26, the  TACH WIRE on a 4.8L, 5.3L AND 6.0L is a PURPLE in the GREEN PLUG PIN 26.





Posted By: snguyen
Date Posted: October 29, 2004 at 9:33 PM

Chevrolet

Express

 

Remote Starter  Wiring Colors and Notes

Function

 

Vehicle  Color

Location

Start:

 

Yellow (+)

Ignition switch harness

Ignition  #1:

 

Pink (+)

Ignition switch harness*

Ignition #2:

 

White (+)

Ignition switch harness

Ignition  #3:

 

N/A

Ignition switch harness

Accessory:

 

Orange (+)

Ignition switch harness

Brake  Light:

 

White (+)

Brake pedal switch

Tach  Signal:

 

White or Purple (AC)

Green plug at the PCM**

Parking Lights:

 

Brown (+)

Fuse box under driver seat

Headlights:

 

N/A

OEM Alarm  Disarm:

 

N/A

OEM Alarm  Arm:

 

N/A

Diesel  Glow Plug:

 

N/A

Clutch  Bypass Wire:

 

N/A

Notes:

 *This vehicle is equipped with GM's Passlock II Anti-Theft Security System. Use Universal Alarm Bypass Module part # 2x402 where X can be any number. **The Powertrain Control Module (PCM) is on the driver side fender.

Chevrolet

Express

 

Alarm and Keyless  Entry Wiring Colors and Notes

Function

 

Vehicle  Color

Location

Constant  +12 Volts:

 

RED / Black (x2) (+)

Ignition switch harness

Starter  Kill:

 

Yellow (+)

Ignition switch harness

Ignition  +12 Volts:

 

Pink (+)

Ignition switch harness*

Dome  Lights/Superv:

 

Gray/Black or Dk.Blue/White (+)

Black plug at BCM***

OEM Horn:

 

Tan (-)

Gray plug at BCM***

Power  Lock:

 

Lt.BLue (-)

Blue plug at BCM***

Power  Unlock:

 

White (-)

Blue plug at BCM***

Trunk  Release:

 

N/A

Alarm  Input Wire:

 

Gray/Black or Dk.Blue/White (+)

Black plug at BCM***

Notes:

***The Body Control Module (BCM) is under the passenger side dash, behind the knee bolster.




Posted By: snguyen
Date Posted: October 29, 2004 at 9:35 PM
What bypass are you using?




Posted By: Musicman5000
Date Posted: October 30, 2004 at 12:45 AM

Save money by  use two relays and a resistor and its the same as a bypass module and better than some modules





Posted By: mo12v
Date Posted: October 30, 2004 at 6:08 AM
That is if U have the ability to DMM your PASSlock 2 and purchase the
Relay & Resistor, wire it in & hope U have the right resistance.
Although it may save you money, the cost is not that much higher to purchase
a PASSlock 2 module considering the time it would take a person
who does NOT Install on a regular basis

-------------
MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.




Posted By: snguyen
Date Posted: October 30, 2004 at 9:48 PM

Best bet to buy a bypass and be done with it!  .....MO12v is correct!





Posted By: Velocity Motors
Date Posted: October 31, 2004 at 10:41 AM
Use the PLDATA. It's the best module and it's sooooo user friendly with on y 4 wires to hook up. Even newbees can install this without any problems :

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: sudden impact
Date Posted: November 02, 2004 at 2:44 PM
Thanks everyone for your help.  I figured out my problem, it was one of those things I overlooked, simple mistake.  I appreciate your help.

-------------
Sudden Impact





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