| PCode | Code | Brand | Description |
|---|---|---|---|
| U0049 | U0049 | Vehicle Communication Bus C (+) Low | |
| U0050 | U0050 | Vehicle Communication Bus C (+) High | |
| U0051 | U0051 | Vehicle Communication Bus C (–) Open | |
| U0052 | U0052 | Vehicle Communication Bus C (–) Low | |
| U0053 | U0053 | Vehicle Communication Bus C (–) High | |
| U0054 | U0054 | Vehicle Communication Bus C (–) shorted to Bus C (+) | |
| U0055 | U0055 | Vehicle Communication Bus D | |
| U0056 | U0056 | Vehicle Communication Bus D Performance | |
| U0057 | U0057 | Vehicle Communication Bus D (+) Open | |
| U0058 | U0058 | Vehicle Communication Bus D (+) Low |