Verify Rear I/O Module Functionality
- Verify that the System Service Required LED on the rear I/O module is
See Rear I/O Module LEDs.
- Perform one of the following tasks based on your verification results.
If the previous steps did not clear the fault, see Diagnostics Process.
If Step 1 indicated that no faults have been detected, then the rear I/O module has been replaced successfully. No further action is required.