It seems that either the cluster is bad, or it's a wiring problem. The first three error codes would be caused by a break in the wires for the data link connector near the cluster. There's a PCI bus that connects the cluster, the PCM, the SKIM, and the ACM. I suggest looking at the wiring diagram for the data link connector and trace all those wires from the cluster. The last error code seems like it would be caused by a break in the wiring between the MFS and the cluster. I'd look for a place in the harness where that wiring and the data link connector wires co-exist, and start looking for a cut there.