| PCode | Code | Brand | Description |
|---|---|---|---|
| U0039 | U0039 | Vehicle Communication Bus B (+) Open | |
| U0040 | U0040 | Vehicle Communication Bus B (+) Low | |
| U0041 | U0041 | Vehicle Communication Bus B (+) High | |
| U0042 | U0042 | Vehicle Communication Bus B (–) Open | |
| U0043 | U0043 | Vehicle Communication Bus B (–) Low | |
| U0044 | U0044 | Vehicle Communication Bus B (–) High | |
| U0045 | U0045 | Vehicle Communication Bus B (–) shorted to Bus B (+) | |
| U0046 | U0046 | Vehicle Communication Bus C | |
| U0047 | U0047 | Vehicle Communication Bus C Performance | |
| U0048 | U0048 | Vehicle Communication Bus C (+) Open |