| 714 / | HD | ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY | 
| 1 | DF | RELIABILITY AND AVAILABILITY {4} | 
| 25 | DF | .~ Fault locating (i.e., diagnosis or testing) {7} | 
| 40 | DF | .~.~ Component dependent technique {4} | 
| 43 |  | .~.~.~ Bus, I/O channel, or network path component fault |