TM 5-3895-374-24-1 Troubleshooting Your Output Modules If your Output And Your Output  And Probable Cause Recommended Action Circuit LED is Device is Check for duplicate outputs and addresses using the search function If using subroutines, outputs are left in their last stale Programming problem when not executing subroutines Use the force function to force output off If this does Your program not force the output off, output circuit is damaged  If the Indicates that the output does force off, then check again for On/Energized output circuit is off or logic/programming problem the output circuit will not turn off Output is forced on in program   Check processor FORCED I/O or FORCE LED and remove forces On Use the force function to force the output off.  If this forces the output oft, then there Is a logic/programming Output circuit s damaged problem  II this does not force the output off, the output circuit is damaged  Try other output circuit Replace module Low or no voltage across the Measure the source voltage and check specifications Your output device load will not turn on and the program Incorrect  wiring or open circuit  Check wiring and common connections Off/De-energized    indicates that it is on. Output device is incompatible Check specifications and sink/source compatibility (If DC output) Output  circuit is damaged Check wiring  Try other output circuit  Replace module Output device is incompatible Check specifications Output circuit Off-state leakage Check specifications  Use load resistor to bleed off current may exceed output leakage current See output specifications Your output device device specification. On/Energized will not turn off and the program incorrect wiring. Check wiring  Disconnect from SLC and verify device indicates that it is operation off Output device is shorted or Verify device operation Replace device damaged Output circuit is damaged Check wiring.  Try other output circuit  Replace module Check for duplicate outputs and addresses using search function If using subroutines, outputs are left n their last stale Off when not executing subroutines. Programming problem. Use the force function to force output on If this does Your program not force the output on, output circuit Is damaged  If the indicates that the output does force on, then check again for Off/De-energized    output circuit is on or logic/programming problem the output circuit will not turn on Output is forced off in program. Check processor FORCED I/O or FORCE LED and remove forces Use the force function to force the output on If this forces the output on, then there is a logic/programming Output circuit is damaged problem  If this does not force the output on, the output circuit is damaged  Try other output circuit Replace module Chapter 9 Troubleshooting (page 3-462)