U0049
Vehicle Communication Bus C (+) Low
DTC U0049, sometimes indicated as U004900 is an OBD diagnostic trouble code indicating a generic fault with the vehicle user network.
- U0049: Vehicle Communication Bus C (+) Low
- U0049: Vehicle area network (VAN) data bus C (+) – voltage low
- U0049 00: Vehicle area network (VAN) data bus C (+) - voltage low
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