After the ignition is turned off and the doors are open? I just replaced the battery in my car on Sunday, up to this point, everything was working fine. Monday when I left for work, the radio had visual, but had no sound. My onstar, warning chimes and radio didn't work. I have an aftermarket radio installed with all of the appropriate components.
When I got home I pulled the fuse to check it and all is good. When I replaced the fuse, the sounds came on for the radio, but my onstar and warning chimes still did not work and the radio would not turn off when I opened the door after turning off the ignition. The speakers also continue to have power. I thought it might be a accessory delay relay, but when I tried a different relay in its place, the problem persisted. What else could be causing the problem? Is it possible that the GMOS-04 module for the onstar, warning chimes and radio went bad?
Wednesday, April 25th, 2012 AT 4:34 PM