November 2016
Service and Repair Manual
Fault Codes
Part No. 1272220GT
GS-2669 DC • GS-3369 DC • GS-4069 DC
111
Type "FXXX" Faults, continued
DTC
Number
Message on
GCON LCD
Description
Possible Causes
Failure Mode
F064
F064:SWITCHFAULT
LEFT AXLE:MISM
Left axle safety limit switch state not
matching the left axle operational
limit switch state.
• Short or open circuit of the left axle safety and/or operational
limit switches.
• Short or open circuit of the left axle safety and/or operational
limit switch harness.
• Faulty left axle safety and/or operational limit switch.
• Right rear DCON or GCON ECM.
All functions inhibited
except platform as long as
machine is in the elevated
position.
If machine is in stowed
position, all functionality is
resumed.
F065
F065:SWITCHFAULT
RIGHT AXLE:MISM
Right axle safety limit switch state
not matching the right axle
operational limit switch state.
• Short or open circuit of the right axle safety and/or
operational limit switches.
• Short or open circuit of the right axle safety and/or
operational limit switch harness.
• Faulty right axle safety and/or operational limit switch.
• Right rear DCON or GCON ECM.
All functions inhibited
except platform as long as
machine is in the elevated
position.
If machine is in stowed
position, all functionality is
resumed.
F068
F068:OSCILLATE
TIMEOUT
Oscillate axle safety or operational
limit switches failed to close within 4
seconds after opening.
• Open circuit of a safety or operational limit switch.
• Open circuit in safety or operational limit switch.
• Right rear DCON or GCON ECM.
All functions inhibited
except platform as long as
machine is in the elevated
position.
If machine is in stowed
position, all functionality is
resumed.
F069
F069:SWITCHFAULT
OSC LIM SWITCHES
Right and left axle safety or
operational limit switches are in an
open state.
• Open circuit of the right and/or left axle safety or operational
limit switches.
• Open circuit of the right and/or left axle safety or operational
limit switch harness.
• Right rear DCON or GCON ECM.
All functions inhibited
except platform as long as
machine is in the elevated
position.
If machine is in stowed
position, all functionality is
resumed.
F070
F070:SWITCHFAULT
DOWN LIMIT:MISM
Platform down safety and
operational limit switches are not in
the same state.
• Open or short circuit of the platform down safety and/or
operational limit switches.
• Open or short circuit of the platform down safety and/or
operational limit switch harness.
• Faulty safety and/or operational limit switch.
• Right rear DCON or GCON ECM.
All functions inhibited.
F071
F071:MOTOR
THERM PROTECTION
Drive motor(s) thermal sensor has
exceeded 185° F / 85° C.
• One or both drive motors over heated.
• Faulty thermal sensor in rear drive motor.
• Faulty rear drive motor.
• Left or right rear DCON or GCON ECM.
All drive and steer
functions inhibited.
F074
F074:ENGINE
START FAULT
Engine fails to start.
• Faulty fuel valve.
• Faulty starter solenoid.
• CR1 Relay stuck open.
• Left rear DCON ECM.
• No fuel.
• Engine start battery.
Engine restart function
disabled.
F075
F075:UNEXPECTED
ENGINE STOP
Engine stops running unexpectedly.
• Fuel.
• Faulty CR2 relay.
• Faulty CR62 relay.
• GCON ECM.
Engine restart function
disabled.