radio will not turn off "diagnosis"?

2008 MERCEDES BENZ ML550
190,000 MILES • 5.5L • 4WD • AUTOMATIC
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SELAM RADE
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  • 1 POST
radio will not turn off "diagnosis".
Nov 28, 2023 at 5:47 PM
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JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

If the radio won't turn off, it sounds like there is a short internally that is causing an issue. When this started, was there anything that may have caused it? For example, did someone bump into you or did you hit a large pothole?

Let me know. I say an internal short because there is an on/off switch that should cut power. If you can't turn it off, the switch is likely not working.

Let me know.

Joe
Nov 29, 2023 at 9:38 PM
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