JLG boom lifts (450AJ, 600AJ, 800AJ, 460SJ, 660SJ, 860SJ, 1250AJP, M450AJ, M600JP)
JLG error code 84185 — TOWER ANGLE SENSOR #1 - COMMUNICATIONS FAULT
Message on the display: TOWER ANGLE SENSOR #1 - COMMUNICATIONS FAULT
Code 84185 occurs in machines: JLG 1250AJP.
blocking fault
The BLAM losses communication with the tower angle gravity sensor 1 for 250ms Machine is placed in retrieval sequence for recovery Machine shall be trapped in transport position Fault cleared on power cycle.
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
- Verify wiring. Replace sensor.
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 84185 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
- 84152TOWER LENGTH SENSOR 2FAULTY - REPLACE/RECALIBRATE SENSOR
- 84153BOOM LENGTH SENSOR 1 FAULTY - REPLACE/RECALIBRATE SENSOR
- 84154BOOM LENGTH SENSOR 2 FAULTY - REPLACE/RECALIBRATE SENSOR
- 84186TOWER ANGLE SENSOR #2 - COMMUNICATIONS FAULT
- 84193BOOM ROTARY ANGLE SENSOR #1 - FAULTY
- 84198BOOM ROTARY ANGLE SENSOR #2 - FAULTY