JLG 3246ES Service Manual - Manual (Page 156)

SECTION 6 - DIAGNOSTIC TROUBLE CODES
6-4 – JLG Lift – 3121166
6.3 DTC CHECK TABLES
0-0 Help Comments
DTC FAULT MESSAGE DESCRIPTION CHECK
Error (Displayed on MDI) The MDI is powered, but cannot
communicate with the control
system.
• Check the MDI connector.
• Check the diagnostic connector.
• Check continuity between MDI connector socket 6
and ground board connector socket J1-4.
• Check continuity between MDI connector socket 4
and ground board connector socket J1-3.
• Check that the ground board software version is P1.13
or higher.
001 EVERYTHING OK The normal help message in
platform mode. Displays on the
analyzer only.
002 GROUND MODE OK The normal help message in
ground mode. Displays on the
analyzer only.
003 ALARM SOUNDING -
TILTED & ABOVE ELEVA-
TION Control system senses that the
platform is elevated and the
vehicle is tilted, and the machine
not configured to cutout. • Check that the machine is tilted. If so, lower the plat-
form 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.
004 DRIVING AT CUTBACK -
ABOVE ELEVATION The platform is elevated and the
machine is driving. • Fully stow the platform.
• Check that the elevation angle sensor is securely
mounted.
• Check that the pothole protection switches are
securely mounted.
• Check the lift/drive switch.
• Backprobing ground board J1-18 should show about
0 volts.
• Backprobing ground board J1-10 should show about
0 volts.
• Check function of elevation angle sensor. ANALYZER -
> DIAGNOSTICS -> ELEV SENSOR -> ZEROED should
be about 0V when stowed and about 0.15V at cut-
back.