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Section 256 (Audio (Radio) - DTCS B1570-19 To U1519-00 - 2500HD & 3500HD)
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DTC Troubleshooting
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B221E-00 - Radio Internal
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Set Condition
Set Condition
WARNING:
This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
The code will set if the Radio detects an internal failure.