Car Fault: 1085
Fault Description:
TAC50-04/32bit - An SPI Error has been detected on a CN or HN Node.

Possible Causes:

For hall nodes - Use the DHN(F/R) command to determine the HN node ID (the first failed node will display)

For car nodes - Use the DCN command to determine the CN node ID (the first failed node will display)

Check all wiring and connections at the failing node

Invalid configuration - See the DCN and DHN commands and verify that the port numbers are correct

Issue the TECC command to make sure all of the nodes are configured

A bad CN, HN, or L24 board