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BCM programing (whitebird00)

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Old Dec 10, 2013 | 04:12 PM
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Default BCM programing (whitebird00)

I googled wether programming is needed or if it can be a diy and this forum came up. I saw in a thread that a member named bluebird00 said that the bcm does not need any special programming or "flashing". Its just the bcm needs to learn the key that is put into the ignition switch and also the transmitter needs to be reprogramed. Is this true that it is not necessary to need to go to a dealer to get it flashed (local chevy is charging $230 JUST for installing and "flashing").

Now I have a 2004 chevy impala 3.4l and I know this is the wrong forum but I understand that these cars are similarly built. Please I need help this is my only form of transportation to work and school and I really dont have $230 to spend on just installing with the bcm being another $130 on amazon.
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Old Dec 11, 2013 | 09:37 PM
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Why do you need to flash the bcm? My experience with these cars is that the ing switch goes bad. Normally when I run in to one of these with no start issues I go to the U Pull It and grab the ing switch, the PCM, the bcm, and the radio and put them in as a set. If you scan the car the wrong in will come yp but I don't live in an emissions area.
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Old Dec 11, 2013 | 09:46 PM
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can't program a BCM. the BCM is programmed to the first key inserted at the factory and can't be changed! the transmitter can be reprogrammed.
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Old Dec 11, 2013 | 09:49 PM
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Originally Posted by Pacer Racer
Why do you need to flash the bcm? My experience with these cars is that the ing switch goes bad. Normally when I run in to one of these with no start issues I go to the U Pull It and grab the ing switch, the PCM, the bcm, and the radio and put them in as a set. If you scan the car the wrong in will come yp but I don't live in an emissions area.
Well the thing is my guages are shutting off while driving, I get the (security, low gas, service engine light), and my ac stops blowing cool air. This all happens after the car is warmed up and driven for like 10-15min. If you shut the car off and let it cool down everything works normal again until it warms up. I just replaced the ignition switch this past weekend and that didnt work. According to the symptoms im habing it is most likely a bad BCM. Even the acdelco bcm reviews on amazon say that they had the exact same symptoms as I am having and replacing the BCM fixed it. My question is how can I install/reprogram the bcm myself. My chevy dealer is charging me $230 just to install and flash and I really do not have that kind of money right now so I want to install it myself (if possible). My bcm should be coming in the mail to me tomorrow so if anybody can guide me so I can get this fixed asap!
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Old Dec 11, 2013 | 09:52 PM
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Originally Posted by JOHNNY59
can't program a BCM. the BCM is programmed to the first key inserted at the factory and can't be changed! the transmitter can be reprogrammed.
So basically I am stuck with this issue now until I can afford the $230 the dealer ks charging to install and "flash"?
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Old Dec 12, 2013 | 05:56 PM
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Originally Posted by slickmastajay
So basically I am stuck with this issue now until I can afford the $230 the dealer ks charging to install and "flash"?

Send me an email through the forum with your email address, I'll try to send you the program instructions from the .GM manual, but as I remember it you just install it and it learns the in and key code by itself when you power it up.
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Old Dec 12, 2013 | 06:04 PM
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Originally Posted by Pacer Racer
Send me an email through the forum with your email address, I'll try to send you the program instructions from the .GM manual, but as I remember it you just install it and it learns the in and key code by itself when you power it up.
PM sent
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Old Dec 13, 2013 | 03:33 PM
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Originally Posted by Pacer Racer
Send me an email through the forum with your email address, I'll try to send you the program instructions from the .GM manual, but as I remember it you just install it and it learns the in and key code by itself when you power it up.
How do I follow the instructions you sent me? It says that you need a tech2 scan tool?
I dont know anywhere but the dealer that has a tech 2 scan tool and they are charging an arm and a leg to repgrogram the bcm for me.
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Old Dec 15, 2013 | 09:28 PM
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There's a thread somewhere here on how to repair your BCM...
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Old Dec 15, 2013 | 09:41 PM
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https://ls1tech.com/forums/general-m...blems-fix.html
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Old Dec 15, 2013 | 09:57 PM
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Originally Posted by slickmastajay
I googled wether programming is needed or if it can be a diy and this forum came up. I saw in a thread that a member named bluebird00 said that the bcm does not need any special programming or "flashing". Its just the bcm needs to learn the key that is put into the ignition switch and also the transmitter needs to be reprogramed. Is this true that it is not necessary to need to go to a dealer to get it flashed (local chevy is charging $230 JUST for installing and "flashing").

Now I have a 2004 chevy impala 3.4l and I know this is the wrong forum but I understand that these cars are similarly built. Please I need help this is my only form of transportation to work and school and I really dont have $230 to spend on just installing with the bcm being another $130 on amazon.
The bcm in a Wbody (Impala) has to have the vin and the rpo's set up with a tech 2 then a passlock relearn. If its not done correctly you will brick the module.
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Old Nov 3, 2022 | 06:31 AM
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Default Hello bcm reprogram

Originally Posted by Pacer Racer
Send me an email through the forum with your email address, I'll try to send you the program instructions from the .GM manual, but as I remember it you just install it and it learns the in and key code by itself when you power it up.

i have a 2010 Camaro SS v8 and installed a new bcm with my launch tablet X program but the car doesn’t start with my key. How do I fix this?
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Old Nov 3, 2022 | 10:00 AM
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Originally Posted by camarossv8
i have a 2010 Camaro SS v8 and installed a new bcm with my launch tablet X program but the car doesn’t start with my key. How do I fix this?
Do like Pacer Racer suggests..... since you quoted him.
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Old Nov 3, 2022 | 11:55 AM
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Originally Posted by G Atsma
Do like Pacer Racer suggests..... since you quoted him.
I’m unable to send him a message or see any contact information. Maybe because my account is new
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Old Nov 3, 2022 | 12:00 PM
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Originally Posted by camarossv8
I’m unable to send him a message or see any contact information. Maybe because my account is new
That would be it. Do a few more posts and you will qualify. Check the rules to be sure
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