JLG ES series scissor lifts (1930ES, 2030ES, 2630ES, 2646ES, 3246ES)
JLG error code 003 — ALARM SOUNDING - TILTED & ABOVE ELEVATION
Message on the display: ALARM SOUNDING - TILTED & ABOVE ELEVATION
Code 003 occurs in machines: JLG ES series, 1932RS, 6RS, 3248RS, 10RS, 4045R, R4045.
warning / function limited
Control system senses that the platform is elevated and the vehicle is tilted, and the machine not configured to cutout.
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 that the machine is tilted. If so, lower the platform and reposition the machine to a level surface.
- Fully stow the platform.
- The tilt sensor is part of the ground control box. Check that the ground control box is secured to the machine.
- Check that the pothole protection switches are securely mounted.
- Check that the elevation angle sensor is securely mounted.
- Check the ANALYZER -> MACHINE SETUP -> MARKET configuration.
- If MARKET is set to CE, ensure ANALYZER -> MACHINE SETUP - > TILT CUTOUT parameter is set as desired.
- Backprobing ground board J1-18 should show about 0 volts.
- Backprobing ground board J1-10 should show about 0 volts.
- Check pothole protection switch adjustment.
- Calibrate the elevation sensor, see Section 5.5.
- Calibrate the tilt sensor, see Section 5.2.
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 003 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.