Okay, so i turned on the onboard OBD in my 94 deville and i was not thinking when pressing buttons- now the radio does a annoying thumping sound... HELP!
Okay, so i turned on the onboard OBD in my 94 deville and i was not thinking when pressing buttons- now the radio does a annoying thumping sound... HELP!
Have you tried pulling the fuse for the radio and plugging it back in? Possibly this will reset the radio to factory defaults.
If that fails to fix it you can reset the ECU by pulling the fuse labeled "ECU", with the fuse out turn the ignition to "on" (but not start), wait 5 minutes, then plug fuse back in.
I am guessing here as to whether this will fix your specific problem, so hopefully someone else with personal experience will chime in.
I will have to try that! Thanks a bunch! - sorry for such a late response, Just fixed my suv a few days ago and been trying to fix a 95 maxima that wont start.
You are welcome. I'm going to move this to the Grassroots forum. Perhaps you will get more views and advice there. 
ok! Thanks again!
Sounds like you have a bit of a ground loop issue, perhaps a wire crossed. I'd start where ECM suggested, and trace your work back from there if that doesn't fix it.
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