JLG E300 Service Manual - Manual (Page 193)

SECTION 6 - JLG CONTROL SYSTEM
3121253 – JLG Lift – 6-25
33364 33 FORWARD CONTACTOR COIL - OPEN CIRCUIT Traction point A did not go HIGH when forward contactor was
energized. This maybe due to an open circuit traction motor or
power wiring error
33369 33 REVERSE CONTACTOR COIL - OPEN CIRCUIT Traction point A did not go HIGH when reverse contactor was
energized. This maybe due to an open circuit traction motor or
power wiring error
33370 33 FORWARD CONTACTOR COIL - SHORT CIRCUIT The forward contactor was not energized when required, due to
over current protection
33371 33 REVERSE CONTACTOR COIL - SHORT CIRCUIT The reverse contactor was not energized when required, due to
over current protection
33411 33 VALVE SUPPLY OVERLOADED There is a high current draw from the valve supply when no valve
is energized; this maybe due to a wiring error at the ground mod-
ule
421 42 POWER MODULE TOO HOT - PLEASE WAIT Controller heat sink temperature reached 75*C, the controller is
shut down until it cools to below 70*C
441 44 BATTERY VOLTAGE TOO LOW - SYSTEM SHUTDOWN Battery voltage is below 33 volts EMS recycle is required
442 44 BATTERY VOLTAGE TOO HIGH - SYSTEM SHUTDOWN Battery voltage is above 62 volts, EMS recycle is required
445 44 BATTERY VOLTAGE LOW Battery voltage is below 40 volts, this is only a warning, the con-
troller does not shut down
469 46 VEHICLE OVERSPEED Speed in the wrong direction was measured with the traction
motor full ON. This maybe due to a faulty speed sensor being
installed incorrectly; it could also be due to a speed sensor fault or
faults for NO VEHICLE MOVEMENT DETECTED with the vehicle
on a grade
4610 46 RIGHT SPEED SENSOR - NOT RESPONDING PROPERL Y The right speed sensor is indicating an impossible number of
pulses, this maybe due to a faulty speed sensor
4611 46 LEFT SPEED SENSOR - NOT RESPONDING PROPERL Y The left speed sensor is indicating an impossible number of
pulses, this maybe due to a faulty speed sensor
4615 46 SPEED SENSOR - INVALID READING Both speed sensors are indicating impossible number of pulses,
this maybe due to a faulty speed sensor
4616 46 BRAKES DID NOT LOCK Brake pressure did not clear when the brake valve was de- ener-
gized
4617 46 NO VEHICLE MOVEMENT DETECTED AT MAXIMUM POWER No speed was measured with the traction motor full ON. This
could be due to a traction motor fault, a power wiring error, a
speed sensor fault, the brakes not releasing (though brake pres-
sure is OK) or the vehicle being overloaded so that the motor can-
not turn the wheels
661 66 CANBUS FAILURE - POWER MODULE Power Module CAN communication lost.
662 66 CAN BUS FAILURE - PLATFORM MODULE Platform Module CAN communication lost.
6631 66 CAN BUS FAILURE - GROUND MODULE Ground Module CAN communication lost.
6636 66 CANBUS FAILURE - TILT MODULE Tilt Module CAN communication lost.
772 77 STALLED TRACTION MOTOR OR POWER WIRING ERROR The power module traction MOSFET protection circuit is active,
This is due to a massive current drain and could be a stalled trac-
tion motor or a power wiring error
773 77 CAPACITOR BANK FAULT - CHECK POWER CIRCUITS The capacitor bank is not charging, this maybe due to a power
wiring error causing illegal current drain or a very low battery volt-
age
Table 6-4. E300 Diagnostic Fault Codes
DTC
Flash
Code
Fault Message Description