JLG ES series scissor lifts (1930ES, 2030ES, 2630ES, 2646ES, 3246ES)
JLG error code 254 — DRIVE & LIFT UP PREVENTED - CHARGER CONNECTED
Message on the display: DRIVE & LIFT UP PREVENTED - CHARGER CONNECTED
Code 254 occurs in machines: JLG ES series, 1932RS, 6RS, 3248RS, 10RS, 4045R, R4045.
blocking fault
Drive or lift is not possible while the vehicle is charging AND is configured to prevent all motion.
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
- Check if the charger is connected to off board power source and disconnect if desired.
- Check ANALYZER -> MACHINE SETUP -> CHARGER INTERLOC is set as desired. (Must be in ACCESS LEVEL 1 to change.)
- Check that charger's red (positive) battery wire connector terminal is receiving power (24V) from batteries.
- Check signal from charger interlock connector terminal 2 to ground board terminal J1-29, where 0VDC indicates charging in process.
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 Manual, ES series (Diagnostic Trouble Codes section).
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 254 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.