IBM 6151 Maintenance And Service Manual page 164

Step 32
Some problems may not be detected by the diagnostic routines but
still fail when running a certain application program.
DOES THIS PROBLEM OCCUR ONLY WHEN RUNNING A
CERTAIN APPLICATION PROGRAM?
YES
Go to "Application Only Problems PIC 0080" on
page 3-0080-1.
NO
No trouble was found. This completes the repair.
3-0030-32 Service Manual