JLG boom lifts (450AJ, 600AJ, 800AJ, 460SJ, 660SJ, 860SJ, 1250AJP, M450AJ, M600JP)
JLG error code 66111 — CANBUS FAILURE - CONNECTIVITY MODULE
Message on the display: CANBUS FAILURE - CONNECTIVITY MODULE
Code 66111 occurs in machines: JLG 1250AJP.
warning / function limited
CANbus communication has been lost between the UGM and the Connectivity Module. Fault cleared when communcation is restored or Machine is configured properly.
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 CANbus wiring per electrical schematic. Verify CANbus resistance. Verify Machine Setup is configured properly.
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 66111 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
- 46130MAIN CONTACTOR / REAR RIGHT BRAKE RETURN - SHORT TO BATTERY
- 46136REAR LEFT BRAKE SUPPLY VOLTAGE - OUT OF RANGE LOW
- 46137REAR RIGHT BRAKE SUPPLY VOLTAGE - OUT OF RANGE LOW
- 84151TOWER LENGTH SENSOR 1 FAULTY - REPLACE/RECALIBRATE SENSOR
- 84152TOWER LENGTH SENSOR 2FAULTY - REPLACE/RECALIBRATE SENSOR
- 84153BOOM LENGTH SENSOR 1 FAULTY - REPLACE/RECALIBRATE SENSOR