JLG E450A Service And Maintenance Manual page 394

SECTION 6 - JLG CONTROL SYSTEM
DTC Cat DTC Num
42 32 REAR LEFT MOTOR TOO HOT - PLEASE WAIT
42 33 REAR RIGHT MOTOR TOO HOT - PLEASE WAIT
44 1 BATTERY VOLTAGE TOO LOW - SYSTEM SHUT-
DOWN
44 2 BATTERY VOLTAGE TOO HIGH - SYSTEM SHUT-
DOWN
44 3 LSS BATTERY VOLTAGE TOO HIGH
44 4 LSS BATTERY VOLTAGE TOO LOW
44 20 BATTERY DEEPLY DISCHARGED
44 30 BATTERY VOLTAGE TOO LOW
44 63 REAR LEFT MODULE - VOLTAGE OUT OF RANGE
44 64 REAR RIGHT MODULE - VOLTAGE OUT OF RANGE Associated Power Module determines System
46 92 REAR LEFT BRAKE - SHORT TO GROUND OR
OPEN CIRCUIT
46 93 REAR RIGHT BRAKE - SHORT TO GROUND OR
OPEN CIRCUIT
46 100 REAR LEFT BRAKE RETURN - SHORT TO BATTERY Traction Module detects an overcurrent condition
6-78
Table 6-17. Diagnostic Trouble Codes
DTC Text
The UGM determines that the drive motor temper-
ature reported by the PM > 140°C but < 200 °C or
the PM determines that motor temperature sensor
is reporting > 150°C
UGM to suppress if DTC 4228 is active.
The UGM determines that the drive motor temper-
ature reported by the PM > 140°C but < 200 °C or
the PM determines that motor temperature sensor
is reporting > 150°C
UGM to suppress if DTC 4229 is active.
The UGM detects that its 12V supply voltage is less
than 9.0 volts for 5 seconds.
The UGM detects that its 12V supply voltage > 16.0
volts
MACHINE SETUP -> LOAD SYSTEM ≠ NO; The UGM
determines that LSS error bit is set for supply volt-
age too high (> 34.0V)
MACHINE SETUP -> LOAD SYSTEM ≠ NO; The UGM
determines that LSS error bit is set for supply volt-
age too low (< 9.0V)
UGM determines that the SOC% related to the Bat-
tery has reached the Deeply Discharged condition.
Based on SOC% only, not Voltage threshold; No
audible annunciation for this DTC.
UGM detects that its supply voltage < 11 volts for 5
seconds.
Associated Power Module determines System
Overvoltage/Undervoltage, Voltage measurement
≥ 65V or ≤ 12V
Overvoltage/Undervoltage, Voltage measurement
≥ 65V or ≤ 12V
Associated Power Module detects A4 shorted to
ground: at Standby as or at Running (PWM Supple-
mental info not applicable to this DTC for initiating
separate DTC: Power Module detects A4 shorted to
ground at Startup as or Power Module detects A2
shorted to ground only at Startup, not detected in
Standby or Running.
Associated Power Module detects A4 shorted to
ground: at Standby as or at Running (PWM Supple-
mental info not applicable to this DTC for initiating
separate DTC: Power Module detects A4 shorted to
ground at Startup as or Power Module detects A2
shorted to ground only at Startup, as not detected
in Standby or Running.
on pin A4, indicating a short between B+ and the
Electric Brake FET
Fault Description
Power Module no longer report fault and UGM
determines motor temp ≤ 140 °C (149-10 °C) and
Controls initialized.
Drive disable reset when motor temp ≤ 139 °C
(149-10 °C)and Drive Joystick in Neutral.
Power Module no longer report fault and UGM
determines motor temp ≤ 140 °C (149-10 °C) and
Controls initialized.
Drive disable reset when motor temp ≤ 139 °C
(149-10 °C)and Drive Joystick in Neutral.
UGM voltage > 9.25V
Power cycle
Not all of the trigger conditions are met; motion
restrictions removed after controls initialized
Not all of the trigger conditions are met; motion
restrictions removed after controls initialized
Power cycle
UGM voltage > 11.25V
Traction modules no longer report fault then
controls initialized.
Traction modules no longer report fault then con-
trols initialized.
Power cycle
Power cycle
Power cycle
Solution
3121714