JLG 680S, Service And Maintenance Manual

Page: 475 / 530

SECTION 6 - JLG CONTROL SYSTEM
3121234 6-59
33295 33 SWING LEFT VALVE - OPEN CIRCUIT Check Harness for damage.
33306 33 SWING LEFT VALVE - SHORT TO BATTERY Check Harness for damage.
33314 33 FLOW CONTROL VALVE - OPEN CIRCUIT Check Harness for damage.
33315 33 FLOW CONTROL VALVE - SHORT TO BATTERY Check Harness for damage.
33316 33 FLOW CONTROL VALVE - SHORT TO GROUND Check Harness for damage.
33317 33 DRIVE FORWARD VALVE - OPEN CIRCUIT Check Harness for damage.
33318 33 DRIVE FORWARD VALVE - SHORT TO BATTER Check Harness for damage.
33319 33 DRIVE FORWARD VALVE - SHORT TO GROUND Check Harness for damage.
33320 33 DRIVE REVERSE VALVE - OPEN CIRCUIT Check Harness for damage.
33321 33 DRIVE REVERSE VALVE - SHORT TO BATTERY Check Harness for damage.
33322 33 DRIVE REVERSE VALVE - SHORT TO GROUND Check Harness for damage.
33323 33 LIFT UP VALVE - OPEN CIRCUIT Check Harness for damage.
33324 33 LIFT UP VALVE - SHORT TO BATTERY Check Harness for damage.
33325 33 LIFT UP VALVE - SHORT TO GROUND Check Harness for damage.
33331 33 DRIVE - CURRENT FEEDBACK READING TOO LOW The UGM shall suspend Drive
Forward and Reverse command and revert to Open Current loop control for
Drive;
The UGM shall limit Drive Forward and Reverse to Creep
speed after controls initialized
33410 33 DRIVE - CURRENT FEEDBACK READING LOST The UGM shall suspend Drive
Forward and Reverse command and revert to Open Current loop control for
Drive;
The UGM shall limit Drive Forward and Reverse to Creep
speed after controls initialized
33412 33 SWING VALVES - SHORT TO BATTERY Check Harness for damage.
33414 33 SWING - CURRENT FEEDBACK READING TOO LOW Check wiring and coil.
33415 33 FLOW CONTROL VALVE - CURRENT FEEDBACK READING TOO
LOW The UGM shall suspend Flow
Control and revert to Open
Current loop control for Flow
Control.
33417 33 LIFT - CURRENT FEEDBACK READING LOST The UGM shall suspend Lift
Up and Down command and
revert to Open Loop Current
control for Lift;
The UGM shall limit Lift Up
and Down to Creep speed
after controls initialized.
33418 33 SWING - CURRENT FEEDBACK READING LOST Check wiring and coil.
33419 33 FLOW CONTROL VALVE - CURRENT FEEDBACK READING LOST The UGM shall suspend Flow
Control and revert to Open
Current loop control for Flow
Control.
33488 33 SWING FLOW CONTROL VALVE - SHORT TO GROUND Check Harness for damage.
33575 33 ECM PULL DOWN RESISTOR - OPEN CIRCUIT Check Harness for damage.
340 34 <<< PLATFORM OUTPUT DRIVER >>>
341 34 PLATFORM LEVEL UP VALVE - OPEN CIRCUIT Check Harness for damage.
342 34 PLATFORM LEVEL UP VALVE - SHORT TO BATTERY Check Harness for damage.
Table 6-9. Diagnostic Trouble Code Chart (DTC)
DTC Flash Code Fault Message Check