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My 97 camaro had a similar problem with the radio and windows going off and on. I finally got a wiring diagram for the car. The body control module was the fault. The BCM controls the power supply to the radio and windows. I am not sure about the signals but the BCM may supply them as well. Hope this helps as it took me 8 months to find this fault.
TC
Instead of buying a new module, you can probably fix yours by re-soldering the bad connection(s).
The BCM is under the dash on the passenger side. Remove the under dash cover and to the right you will see a small box with 2 plugs going into it. This is the BCM. Remove the plugs(push the tabs first) and disconnect the plugs. Remove the box and open it up. You will see a circuit board with several relays on the top side. The bad spot(s) are usually on the bottom side in the area where the relays are soldered. You will most likely need a magnifying glass to find the spot(s). Look for solder points that are cracked, loose or dull. (mine was cracked).
Use a soldering gun to heat up the points and apply new solder to them(it).
This should fix the problem. Plug the module back in and see if is fixed. If not, look again for a bad spot you may have missed.
If it works, then re-install the module and think about how much money you saved!
BBS
Wiki User
∙ 13y ago
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