I know it seems high milage but this is a great.

ANONYMOUS

MEMBER
2001 CHEVROLET CAMARO
207,800 MILES

I know it seems high milage but this is a great running car. Ok here is the problem. My wife was at work and went to leave for the trip home when the car would not turn over, only the security light flashed. I obtained a factory service manual and came to the conclusion after test that the BCM was defective. It would not even go into diagnostic mode. Replaced it and it cranked up and I took it out of factory test mode. The security light is flashing anytime the key is in the on position. Checked it in the program mode and instead of it beeping once it beeps twice. Checked the available modes and all is correct. The key pads will not program (put in new batteries) and you have too you the key to unlock the car and hurry and get the key into the switch to stop the alarm from going off.
I have gone through the trouble shooting test, checked the wires it said to check and did not have any ground outs. I checked the grey wire on c-3 connector of the BCM And it gets voltage when the light comes on. I looked at the diagram and it looks like the power comes to the instrument panel then to the BCM.
Ok thats enough, any ideas?
P. S. I did replace the BCM a second time after it would not stop the light, so it's not the module.

8 Replies

SATURNTECH9

MECHANIC
30,869 POSTS

Did you put a new bcm or used bcm in?If it was new who programmed it?Did you ever relearn the pass lock when you replaced the bcm?

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Monday, February 25th, 2013 AT 8:32 PM

JOHNOLIVER1

MEMBER
4 POSTS

They were both New ones, had I put in a used one it would set the alarm off from the key not being the one it remembers. The BCMs are not programed, they come in a factory test mode. After you install it, the first time you put in the key and turn it on it remembers the resistor in the key from then on. Then you turn the key on and off 10 times and it comes out of factory mode and goes to mainly factory default setting for that car.
When you put the bcm in program mode it is ok except when it is suppose beep once it only beeps twice and the key pads are not working when you try to program them to the bcm( they have new batteries and worked before). All the other programable functions work fine. The one thing I did not do was replace the instrument cluster as the only other step the troublshooter said.