Diagnostics
JLG Fault Codes by Machine Type
205 plain-English JLG fault-code and error-code guides, organized by machine type. Pick the machine to browse its codes: each guide covers what the code means, what triggers it, common causes, and the first checks.
Safety-critical: confirm before use
Torque, lifting, and load-chart values are safety-critical. Never operate from these figures alone. Confirm against the official manual and a qualified technician.