Ensure you have the correct JES2 IPCS PARMLIB member

Go to IPCS option 2.6 (or issue 2.6;L JES2) and scroll down until you find “JES2” as shown in the following example:

------------------ IPCS MVS DUMP COMPONENT DATA ANALYSIS ----------------------
OPTION ===>                                                   SCROLL ===> CSR

To display information, specify “S option name” or enter S to the left
of the option desired.  Enter ? to the left of an option to display
help regarding the component support.

S Name     Abstract
  IMSDUMP  IMS analysis
  IOSCHECK Active input/output requests
  IRLM     IMS Resource Lock Manager analysis
  JESXCF   JESXCF Address Space Analysis
  JES2     JES2 analysis for HJE7708, service level 0
  JES3D    JES3 analysis
  LISTEDT  Format eligible device table
  LLATRACE Library Lookaside trace
  LOGDATA  LOGREC formatter
  LOGGER   System logger formatter
  LPAMAP   Map link pack area
  MERGE    Merge GTF/CTRACE output

Ensure the JES2 FMID in the panel matches the JES2 FMID in the dump you are diagnosing.

Ensure that the JES2 service level in the dump you're diagnosing is within the service level range shown in the panel. See Using IPCS panels to analyze JES2 data in a dump to determine the JES2 FMID and service level.

Note: The service level for a given JES2 release is set in the &J2SLVL assembly time variable. &J2SLVL is initially zero for each release and increases when significant changes are shipped in the service stream. See "Determining the JES2 Release Level" in z/OS JES2 Installation Exits.