The failing function code indicates a failure in the Host Ethernet Adapter (HEA) which is a part of the Passthrough card. The HEA controller is integrated on the I/O backplane in the system unit. If you replace a passthrough card and the problem is not resolved, replace the I/O backplane.
Note: Use the location code to identify the failing unit or enclosure.
Use the following table to determine the part number for the field replaceable unit (FRU):
| CCIN or FFC | Type and model | Part number | Description | Location code |
| 2586 | 9117-MMA | 42R6775 | Passthru card, 1 GB ethernet. This card also provides connection for the system VPD card, system ports, and SPCN cable. | Un-P1-C10 |
| 2586 | 9117-MMA | 42R7000 | Passthru card, 1 GB ethernet quad. This card also provides connection for the system VPD card, system ports, and SPCN cable. | Un-P1-C10 |
| 2586 | 9117-MMA | 42R7358 | Passthru card, 10 GB ethernet long. This card also provides connection for the system VPD card, system ports, and SPCN cable. | Un-P1-C10 |
| 2586 | 9117-MMA | 42R7352 | I/O backplane | Un-P1 |