Print Page | Close Window

2004 chevy monte carlo bcm diagram

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=90021
Printed Date: May 09, 2024 at 7:55 AM


Topic: 2004 chevy monte carlo bcm diagram

Posted By: kcfitz78
Subject: 2004 chevy monte carlo bcm diagram
Date Posted: February 03, 2007 at 10:05 PM

Anyone have a BCM diagram for a 2004 Chevy Monte Carlo?



Replies:

Posted By: kcfitz78
Date Posted: February 04, 2007 at 10:20 AM

Can I get this diqgram from a dealership?





Posted By: Chris Luongo
Date Posted: February 04, 2007 at 12:30 PM
The dealer might or might not give it to you, depending on their mood.What are you trying to do? Maybe we can help.




Posted By: kcfitz78
Date Posted: February 04, 2007 at 12:40 PM

I need to find wires to tap into at BCM. Wiring diagram references the BCM diagram (Crimestopper). Its gives pigtail and pin out locations





Posted By: Twelvoltz
Date Posted: February 04, 2007 at 4:19 PM
I just did a RS in an 01 yesterday, DEI's information was right on target. Here is what they list:


DIRECTWIRE™ WIRING INFORMATION - CHEVROLET / MONTE CARLO / 2004 / Remote Start

[PRINT THIS PAGE]

12volts      red (x2) (common 60A)       +       ignition harness
Starter      yellow       +       ignition harness
Second Starter      N/A            
Ignition      pink       +       ignition harness
Second Ignition      dk. green       +       ignition harness
Third Ignition      N/A            
Accessory      orange       +       ignition harness
Second Accessory      brown       +       ignition harness
Notes: This wire must be powered as an accessory wire. If powered as a second ignition, the car will not crank.
Keysense      lt. green       -       ign harn or BCM, gry 16P plg, pin B1
Notes: The BCM is under the driver side dash, above the parking brake lever.
Power Lock      ORANGE / black       -       BCM, gray 24 pin plug, pin B3
Notes: Lock is negative trigger thru a 470 ohm resistor. Unlock is a straight negative trigger. MUST use relays.

The BCM is under the driver side dash, above the parking brake lever.
Power Unlock      same as power lock wire            
Lock Motor      see notes            
Notes: Installation of factory keyless upgrade alarm is not recommended on this vehicle because the door lock motor wires rest at approximately 7 volts.
Unlock Motor      see lock motor notes            
Parking Lights+      yellow (F), BROWN / white (R)       +       passenger junction block end of dash
Parking Lights-      white       -       BCM, pink plug, pin A2
Notes: The BCM is under the driver side dash, above the parking brake lever.

Must diode isolate this wire from the BCM to avoid Service Engine Soon light. See DirectFax document 1600 for wiring information.
Hazards      same as turn signal wires            
Turn Signal(L)      lt. blue (F), yellow (R)       +       turn signal switch
Turn Signal(R)      dk. blue (F), dk. green (R)       +       turn signal switch
Reverse Light      lt. green       +       passenger junction block end of dash
Door Trigger      dk. blue (L), dk. blue/wht (R)      -       BCM, gray 16 pin plug, pins A8, A1
Notes: Use both wires and diode isolate each. Have to also diode isolate from the BCM to prevent false alarms. Refer to DirectFax document 1076 for wiring information.

The BCM is under the driver side dash, above the parking brake lever.
Dome Supervision      gray       -       BCM, gray 24 pin plug, pin A8
Notes: The BCM is under the driver side dash, above the parking brake lever.
Trunk/Hatch Pin      RED / black       -       BCM, gray 24 pin plug, pin A11
Notes: The BCM is under the driver side dash, above the parking brake lever.

Have to also diode isolate from the BCM to prevent false alarms. Refer to DirectFax document 1076 for wiring information.
Hood Pin      N/A            
Trunk/Hatch Release      black       -       BCM, gray 16 pin plug, pin A7
Notes: The BCM is under the driver side dash, above the parking brake lever.
Power Sliding Door      N/A            
Factory Alarm Arm      arms on lock with door open            
Factory Alarm Disarm      lt. green       -       BCM, gray 16 pin plug, pin B3
Notes: The BCM is under the driver side dash, above the parking brake lever.
Disarm No Unlock      see factory alarm disarm            
Tachometer      white       ac       Ignition Control Module
Notes: On the 3.4L it is on the top center rear of the engine. On the 3.8L it is on the top right front of the engine.
Wait to start      N/A            
Brake Wire      white       +       brake pedal switch
Parking Brake      lt. green       -       BCM, gray 16 pin plug, pin B6
Notes: The BCM is under the driver side dash, above the parking brake lever.
Horn Trigger      black       -       BCM, pink plug, pin B5
Notes: The BCM is under the driver side dash, above the parking brake lever.
Memory Seat 1      N/A            
Memory Seat 2      N/A            
Memory Seat 3      N/A            
Interface Module:      Category:
Immobilizer Bypass      Required:
Yes      Type:
Passlock II
Part #: 1100F
Alternate Part1 #: 1100X
Alternate Part2 #: 556LW
Alternate Part3 #: 555LW
Alternate Part4 #: DesignTech 20402
Alternate Part5 #: DesignTech 29402
Notes: Standard on all models. The Passlock II wire colors are yellow, black, and white (not used). When using the 1100F or 1100X, a software change to 1100GM is needed.
Interface Module:      Category:
Door Lock Interface      Required:
No      Type:
Data Bus
Part #: IM-GMSD-1
Alternate Part1 #: 456LW
Notes:
Interface Module:      Category:
Combo Interface      Required:
No      Type:
Data Bus
Part #: 1700G
Alternate Part1 #: 457GW
Notes: Can use the 1700G or 457GW to bypass the Passlock II, but it will not control the door locks on this model year.
Smart Starter Kill Relays: Not Available


warning      
This wiring information is being provided free of charge on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it using a digital multimeter.
Directed Electronics assumes no responsibility with regards to the accuracy or currency of this information. Proper installation in every case is and remains the responsibility of the installer. DEI assumes no liability or responsibility resulting from improper installation, even in reliance upon this information.






Posted By: kcfitz78
Date Posted: February 04, 2007 at 5:43 PM
Right but I wanted a diagram to verify wire location......................ie: Door Trigger      dk. blue (L), dk. blue/wht (R)      -       BCM, gray 16 pin plug, pins A8, A1 ............................................pin A8 and A1




Posted By: NowYaKnow
Date Posted: February 04, 2007 at 11:23 PM
You can always use a meter to verify wires? If you unplug one of the connectors and see a dark blue wire in pin 8 and a dark blue/white wire in pin 1, I would say that's a good chance at being accurate. Not sure how a diagram is going to comfort you any further. And if the dark blue/white has a light blue (park lights) next to it, and the dark blue is next to a black wire (trunk release) then that should narrow it down a little further.

Mike




Posted By: Chris Luongo
Date Posted: February 05, 2007 at 6:40 AM
A. You don't need a BCM diagram. You do plan to TEST each wire before connecting to it, right?

B. Besides, going to the BCM in those cars is awkward, inconvenient, and unnecessary.

As the Impala sells in greater numbers than the Monte Carlo, use the search feature here for the Impala. Door trigger, doorlocks, trunk release, and parking lights can be found in other, much easier locations in the car. Also, when you get the parking lights at the switch, you don't have to bother with that relay-isolation nonsense.




Posted By: kcfitz78
Date Posted: February 05, 2007 at 9:24 AM
What about using crimestopper's GM-SL data interface module? Is this a  one wire hook up to the purple wire on the OBD2 connector? Can this module do trunk, doors, passlock, parking lights, turn on your defroster? Very easy to hook up or not?




Posted By: Twelvoltz
Date Posted: February 05, 2007 at 12:14 PM
If you read through the installation manual for the GM-SL it shows that it will control door locks, trunk, passlock and parking lights. It also shows that it will not do defroster for that car.




Posted By: kcfitz78
Date Posted: February 05, 2007 at 2:23 PM

Yes I did see that.

Now I guess GM-SL2 does do defrost and senses temp to turn on or not.

If  I don't use GM-SL2 how do I get defrost added so it will start on start-up. Also this would be for winter only, so I will be using an inline swicth.






Print Page | Close Window