JLG boom lifts (450AJ, 600AJ, 800AJ, 460SJ, 660SJ, 860SJ, 1250AJP, M450AJ, M600JP)
JLG error code 23105 — FUNCTION PROBLEM - TOWER LIFT UP PERMANENTLY SELECTED
Message on the display: FUNCTION PROBLEM - TOWER LIFT UP PERMANENTLY SELECTED
Code 23105 occurs in machines: JLG M600JP, E600JP, 340AJ, 400S, 460SJ, 600SC, 600SJC, 660SJC.
blocking fault
The machine is in Ground mode and the Tower Lift Up input = High at Start Up
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
- Function switch returns to neutral and the machine is not in the Enabled state.
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 23105 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.
Neighbouring JLG codes
- 23101TOWER LIFT PRESSURE SENSOR - OUT OF RANGE LOW
- 23102TOWER LIFT PRESSURE SENSOR - NOT DETECTING CHANGE
- 23103TOWER LIFT CYLINDER - OVER PRESSURE
- 23106FUNCTION PROBLEM - TOWER LIFT DOWN PERMANENTLY SELECTED
- 23107FUNCTION PROBLEM - LIFT UP PERMANENTLY SELECTED
- 23108FUNCTION PROBLEM - LIFT DOWN PERMANENTLY SELECTED