JLG M400 ANSI Service Manual - Manual (Page 203)

SECTION 6 - JLG CONTROL SYSTEM
3121125 – JLG Lift – 6-23
Table 6-6. System Test Descriptions
ACTIVATE TESTS
YES:ENTER, NO:ESC Not available once tests are activated
ENTER activates system tests
NOTE: cannot be done while controller is in use (footswitch
closed) and for a short time afterwards
RUN SYSTEM TEST ENTER starts system test
Not available until tests are activated Displays messages
while system test runs Some messages are prompts,
requiring user intervention.
ENTER can be pressed if a fault is found, to confirm that
the fault has been noted and to continue the system test.
NOTE: a flashing message is critical, and prevents the
system test running