HandsFreeLink Control Unit
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HandsFreeLink Control Unit Chart
| DTC | Description | DTC Type |
| B1750 | Communication bus line error (BUS-OFF) | Loss of communication |
| B1775 | Microphone input/output short to power/open | Signal error |
| B1776 | Microphone input/output short to ground/open | Signal error |
| B1779 | HFL switch (HFL talk/HFL back buttons) circuit open/short | Signal error |
| B1780 | HFL switch (HFL talk/HFL back buttons) circuit short | Signal error |
| B1792 | HandsFreeLink control unit internal error | Internal error |