Dtc Check Tables; Help Comments; Error (Displayed On Mdi); Everything Ok - JLG 1930ES Service Maintenance Manual

SECTION 6 - DIAGNOSTIC TROUBLE CODES
6.3

DTC CHECK TABLES

0-0 Help Comments

DTC FAULT MESSAGE

Error (Displayed on MDI)

001

EVERYTHING OK

002

GROUND MODE OK

003 ALARM SOUNDING - TILTED
& ABOVE ELEVATION
004 DRIVING AT CUTBACK -
ABOVE ELEVATION
005 DRIVE & LIFT UP PRE-
VENTED - TILTED & ELE-
VATED
6-4
DESCRIPTION
The MDI is powered, but cannot commu-
nicate with the control system.
The normal help message in platform
mode. Displays on the analyzer only.
The normal help message in ground
mode. Displays on the analyzer only.
Control system senses that the platform
is elevated and the vehicle is tilted, and
the machine not configured to cutout.
The platform is elevated and the machine
is driving.
Driving is not possible since the platform
is elevated and the chassis is not level.
– JLG Lift –
CHECK
• 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.
• 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 configu-
ration.
• 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.
• 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 -> DIAG-
NOSTICS -> ELEV SENSOR -> ZEROED should be about 0V
when stowed and about 0.15V at cutback.
• 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 configu-
ration.
• If MARKET is set to CE, ensure ANALYZER -> MACHINE SETUP -
> TILT CUTOUT parameter is set as desired.
• Check pothole protection switch adjustment.
• Backprobing ground board J1-18 should show about 0 volts.
• Backprobing ground board J1-10 should show about 0 volts.
• Calibrate the elevation sensor, see Section 5.5.
• Calibrate the tilt sensor, see Section 5.2.
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