Question about 2007 GMC Yukon XL Denali

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How do i replace the BCM of a 2007 yukon - 2007 GMC Yukon XL Denali

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If you replace the BCM on your own the vehicle will not start.The BCM has to be reconfigured per the RPO codes for your vehicle and per your vehicle identification number.This can only be done by a dealer.It takes a special scan tool and it has to hook up to a special computer at the dealership that has all that info for your vehicle and it reprograms the new Bcm.You can not use a used one because it will have the info from the vehicle that it came from.Hope this helps.Good luck.

Posted on Sep 10, 2010

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Posted on Jan 02, 2017

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I have a 2007 yukon denali xl, I got my front brakes and right wheel hub changed. When he got doney brake lights in the back of the truck wI'll not shut off. Brake light switch did nothing to help..


Who put the front brakes an wheel hub bearing on the vehicle ? A qualified repair shop ? A friend ? The front brakes an wheel hub would have nothing to do with the brake lights . An the brake light switch is an input to the BCM - body control module .
Stop Lamps
When the driver presses the brake pedal, the switch contacts open and battery positive voltage is interrupted to the BCM. The BCM then supplies voltage to both the turn/stop lamp supply voltage circuit and trailer rear turn/stop lamp supply voltage circuits. The BCM also supplies voltage to the CHMSL though a dedicated circuit.
I suggest you take it back to who did the front brakes , or a quailfied repair shop .
DTC B3445 00: Stop Lamp Circuit - DO you know what a DTC is ? diagnostic trouble code !
Diagnostic Fault Information
Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance
Stop Lamp Supply Voltage
B3445 00
--
Stop Lamps Inoperative
Stop Lamps Always On
Circuit/System Testing
Disconnect the stop lamps and test the individual stop lamp assemblies for internal shorts between all terminals.
? If a short between terminals is found, replace the stop lamp socket or circuit board as applicable.
Test the stop lamp supply voltage circuit for a short to ground.
? If all circuits/connections test normal, replace the BCM.

Nov 09, 2016 | 2007 GMC Yukon XL Denali

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Body control module 2007 scion tc


2007 Scion tC Body Control Module - 1A Auto

www.1aauto.com > 2007 Scion tC
Shop at 1A Auto for a brand new Body Control Module (BCM) replacement for your2007 Scion tC at a great price. 1A Auto has a large selection of Body Control ...

HELP!!! BCM issue 2005 tc - Scionlife.com

www.scionlife.com/forums/scion-tc.../help-bcm-issue-2005-tc-165745/
Jun 30, 2009 - i think i have a possible BCM (body control module) issue with my 05 tc, ... Using 2007 Air Box in a 2005 Scion TC, chowdahound, Scion tC 1G ...

2007 Scion Tc Body Control Module - Auto Parts Discounter


Dec 13, 2015 | Scion Cars & Trucks

1 Answer

Park asst light stay on m 2005 town country


have the BCM checked for codes it seems you have a relay control issue. get the BCM (body control module) codes read.

Jun 09, 2014 | 2007 GMC Yukon Denali

1 Answer

Bcm location


The BCM should be located underneath the center console towards the front underneath the dashboard! You can also check with Advance, O'Reilly or Autozone salesperson and they should be able to print you up a diagram for your year and model to use as a reference. I hope this helps you!

Feb 17, 2014 | 2002 GMC Yukon

1 Answer

My original key fobs quit working on my 2005 GMC Yukon SLT. I changed the batteries with no positive result. I next replaced the key fobs and followed the programming. This worked for a couple of months...


The keyless entry system has the following main components:
• The transmitters
• The passenger door module (PDM)
The PDM communicates with the body control module (BCM) through the keyless entry serial data circuit. When you press a button on a transmitter, the transmitter sends a signal to the PDM. The PDM sends a request to the BCM and the BCM performs the appropriate function.

Jul 20, 2017 | 2005 GMC Yukon

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I have a 04 yukon xl and I would like to locate the c3 connector that goes to the bcm. I was told that it was a purple/violet connector but I only see blue and brown. Thanks in advance


Hi, my diagram indicates C3 is a brown connector. This should be centered on the back of the BCM. The purple connector is C6, which is the 16-pin interface on the front of the module. You can see pictures here:
http://cgi.ebay.com/ebaymotors/GMC-YUKON-CHEVROLET-SIERRA-BCU-BCM-COMPUTER-BODY-MODULE-/250728065781?pt=Motors_Car_Truck_Parts_Accessories&hash=item3a608eaaf5

This purple connector might not be used on your truck. Please let me know if you have more questions. Sorting out BCM issues can be challenging.

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Jul 25, 2011 | 2004 GMC Yukon

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I AM HAVE INSTALL TURN SIGNALS IN MY MIRRORS ON MY TRUCK I JUST NOT KNOW WHICH WIRE TO TAP INTO TO MAKE THEM WORK I HAVE A 07 GMC YUKON SLT XL 1500


connect at bcm, upper side of knee bolster, bcm brown connector -left front signal supply vltage, l-blu/white wire C5 pin #4 and black connector-right front signal d-blu/white wire C4 pin#5

Jun 25, 2010 | 2007 GMC Yukon XL Denali

1 Answer

2007 GMC Yukon wont start....


Ok supper Dave , let's get this stright , when you turn the key to start the vehicle , what happens ? The starter spins the engine or doesn't spin the engine ? This would be a no crank no start condition . if the engine does spin an doesn't start an run this is a crank no start condition . Now which is it ? The factory radio is hooked to the serial data communication network , did you or who ever installed the aftermarket radio use a interface module ? Are you familiar with the electronics on this vehicle ? BCM - body control module , low current inputs from the ignition switch which determine what mode to put the vehicle in ?

Case 4 Data Bus Issues

The body control system consists of the body control module (BCM), communications, and various input and outputs. Some inputs, outputs and messages require other modules to interact with the BCM. The BCM also has discrete input and output terminals to control the vehicle's body functions. The BCM is wired to the GMLAN high speed serial data buss and the GMLAN low speed serial data buss and acts as a gateway between them. If the BCM does not communicate the vehicle will not start due to the inability of the engine control module (ECM)/powertrain control module (PCM) and theft deterrent module (TDM) to communicate without the BCM providing the gateway function.

Power Mode Master
This vehicles body control module (BCM) functions as the power mode master (PMM). The ignition switch is a low current switch with multiple discrete ignition switch signals to the PMM for determination the power mode that will be sent over the serial data circuits to the other modules that need this information, and so the PMM will activate relays and other direct outputs of the PMM as needed. Refer to Power Mode Description and Operation for a complete description of power mode functions.

Sorry but I am a GM Tech . have been for over thirty years , Cadillac , Buick an Chevy .audio buds think it's something else. Your audio buds don't have a clue ? When change something you better well know what your messing with. .

Apr 11, 2017 | 2007 GMC Yukon

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