JLG E450A Service And Maintenance Manual page 393

DTC Cat DTC Num
33 315 FLOW CONTROL VALVE - SHORT TO BATTERY
33 316 FLOW CONTROL VALVE - SHORT TO GROUND
33 406 LIFT UP VALVE - SHORT TO GROUND
33 407 LIFT DOWN VALVE - SHORT TO GROUND
33 412 SWING VALVES - SHORT TO BATTERY
33 425 TOWER LIFT VALVES - SHORT TO BATTERY
33 479 VOTING RELAY - SHORT TO BATTERY
33 480 VOTING RELAY - SHORT TO GROUND
33 549 VOTING RELAY - OPEN CIRCUIT
33 578 STEER PRIORITY BYPASS VALVE - OPEN CIRCUIT The UGM detects an OC at steer priority bypass out-
33 579 STEER PRIORITY BYPASS VALVE - SHORT TO
GROUND
33 580 STEER PRIORITY BYPASS VALVE - SHORT TO
BATTERY
33 624 SWING BYPASS VALVE - SHORT TO GROUND
33 625 SWING BYPASS VALVE - SHORT TO BATTERY
33 626 SWING BYPASS VALVE - OPEN CIRCUIT
33 627 LIFT BYPASS VALVE - SHORT TO GROUND
33 628 LIFT BYPASS VALVE - SHORT TO BATTERY
33 629 LIFT BYPASS VALVE - OPEN CIRCUIT
42 19 REAR LEFT MODULE TEMPERATURE - OUT OF
RANGE
42 20 REAR RIGHT MODULE TEMPERATURE - OUT OF
RANGE
42 23 REAR LEFT MODULE TOO HOT - PLEASE WAIT
42 24 REAR RIGHT MODULE TOO HOT - PLEASE WAIT
42 28 REAR LEFT MOTOR TEMPERATURE - OUT OF
RANGE
42 29 REAR RIGHT MOTOR TEMPERATURE - OUT OF
RANGE
3121714
Table 6-17. Diagnostic Trouble Codes
DTC Text
The UGM detects a short to 12V battery at this out-
put
The UGM detects a short to ground at this output
The UGM detects STG at the Lift Up Solenoid
The UGM detects STG at the Lift Down Solenoid
The UGM detects a short to 12V battery at the either
Swing output
The UGM detects a short to battery at either the
Tower Lift Up or Tower Lift Down valve.
UGM detects a short to battery at this output
UGM detects a short to ground at the voting relay
output
UGM detects an open circuit at the voting relay out-
put
put
The UGM detects a short to ground at steer priority
bypass output
The UGM detects a short to battery at steer priority
bypass output
The UGM detects a short to ground at swing bypass
output
The UGM detects a short to battery at swing bypass
output
The UGM detects open circuit at swing bypass out-
put
The UGM detects STG at lift bypass output;
The UGM detects STB at lift bypass output
The UGM detects OC at lift bypass output
The Power Module temperature sensor is out of the
permitted operating range and reports a fault
The Front Right Power Module temperature sensor
is out of the permitted operating range and reports
a fault
Associated Power Module has reached thermal cut-
out limit
Front Right Power Module has reached thermal
cutout limit
The Power Module reports that motor temperature
sensor is out of range due to Open-Circuit (Temp
Out of Range – High > 240°C), STG (Temp Out of
Range – Low < -30°C) or damage
The Power Module reports that motor temperature
sensor is out of range due to Open-Circuit (Temp
Out of Range – High > 240°C), STG (Temp Out of
Range – Low < -30°C) or damage
SECTION 6 - JLG CONTROL SYSTEM
Fault Description
Power cycle
Power cycle
Power cycle
Power cycle
Power cycle
Power cycle
Power cycle
Power cycle
Power cycle
UGM no longer detects OC;
Speed restriction removed after CntIni.
Power cycle
Power cycle
Power cycle
Power cycle
UGM no longer detects OC;
Speed restriction removed after CntIni.
Power cycle
Power cycle
Power cycle
Traction module no longer reporting fault; Creep
restriction removed after controls initialized
Traction module no longer reporting fault; Creep
restriction removed after controls initialized
Traction module no longer reporting fault; Creep
restriction removed after controls initialized
Traction module no longer reporting fault; Creep
restriction removed after controls initialized
Traction module no longer reporting fault; Creep
restriction removed after controls initialized
Traction module no longer reporting fault; Creep
restriction removed after controls initialized
Solution
6-77