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JLG boom lifts (450AJ, 600AJ, 800AJ, 460SJ, 660SJ, 860SJ, 1250AJP, M450AJ, M600JP)

JLG error code 9924 — FUNCTIONS LOCKED OUT - MACHINE NOT CONFIGURED

Message on the display: FUNCTIONS LOCKED OUT - MACHINE NOT CONFIGURED · flash code 9/9

Code 9924 occurs in machines: JLG 860SJ, 800S, 600AJ, 600S, 660SJ, 800AJ, 800A, 460SJ, 400S, 1250AJP, M600JP, E600JP, 340AJ, 600SC, 600SJC, 660SJC.

blocking fault

The machine is powered up and no model has been selected yet in the MACHINE SETUP menu.

Description from the JLG service manual, in the original wording.

Possible causes

The manual does not list the causes for this code: the service technician establishes them during diagnosis of the machine.

Checks from the manual

  • Display ??? or NO MODEL at Analyzer MACHINE SETUP menu MACHINE SETUP- >MODEL NUMBER Do not report any other faults Disable all machine and engine functions (i.e., command engine shutdown and do not permit start).

What service does

A qualified service technician reads the code with the manufacturer's diagnostic tools, finds the cause, clears the code and carries out a function test.

Source: JLG Service and Maintenance Manuals: 600AJ (3121201), 800AJ (3120858), 460SJ, 860SJ, 1250AJP (3122581800), M450AJ (3121829), M600JP (3121711), Diagnostic Trouble Codes tables.

The descriptions are quoted from the manufacturer's service documentation and are for guidance only. Clearing codes, calibrations and repairs are carried out by a qualified service technician according to the manual for the specific serial number. A machine with an active blocking code must not be used until the cause has been removed.

Does code 9924 not go away?

RK Rental services JLG lifts at our workshop or on site at the customer's premises (construction site, factory, warehouse). We read the code, remove the cause and select the parts by serial number.

Book a service

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