SECTION 6 - JLG CONTROL SYSTEM
31215031
6-27
33316
33
316
FLOW CONTROL VALVE - SHORT TO GROUND
There is short to Ground to the Flow Control
Valve
Check Harness for damage.
33317
33
317
DRIVE FORWARD VALVE - OPEN CIRCUIT
There is an Open Circuit to the Drive For-
ward Valve.
Check Harness for damage.
33318
33
318
DRIVE FORWARD VALVE - SHORT TO BATTER
There is short to Battery to the Drive For-
ward Valve.
Check Harness for damage.
33319
33
319
DRIVE FORWARD VALVE - SHORT TO GROUND
There is short to Gropund to the Drive For-
ward Valve.
Check Harness for damage.
33320
33
320
DRIVE REVERSE VALVE - OPEN CIRCUIT
There is an Open Circuit to the Drive
Reverse Valve.
Check Harness for damage.
33321
33
321
DRIVE REVERSE VALVE - SHORT TO BATTERY
There is a short to Battery to the Drive
Reverse Valve.
Check Harness for damage.
33322
33
322
DRIVE REVERSE VALVE - SHORT TO GROUND
There is a short to Ground to the Drive
Reverse Valve.
Check Harness for damage.
33323
33
323
LIFT UP VALVE - OPEN CIRCUIT
There is an Open Circuit to the Lift Up Valve. Check Harness for damage.
33324
33
324
LIFT UP VALVE - SHORT TO BATTERY
There is a short to Battery to the Lift Up
Valve.
Check Harness for damage.
33325
33
325
LIFT UP VALVE - SHORT TO GROUND
There is a Short to Ground to the Lift Up
Valve.
Check Harness for damage.
33331
33
331
DRIVE - CURRENT FEEDBACK READING TOO LOW
The Engine State = ENGINE RUNNING;
The UGM commanded current > 250mA;
The difference between the commanded
current and the measured feedback cur-
rent > [the larger of (125mA) or (15% of
the commanded function Max)] for longer
than 1 second
The UGM shall suspend Drive
Forward and Reverse com-
mand and revert to Open Cur-
rent loop control for Drive;
The UGM shall limit Drive For-
ward and Reverse to Creep
speed after controls initialized
33410
33
410
DRIVE - CURRENT FEEDBACK READING LOST
Measured feedback current < 225mA
while PWM output > 40% for a period of
100ms.
The UGM shall suspend Drive
Forward and Reverse com-
mand and revert to Open Cur-
rent loop control for Drive;
The UGM shall limit Drive For-
ward and Reverse to Creep
speed after controls initialized
33412
33
412
SWING VALVES - SHORT TO BATTERY
There is a short to Battery to the Swing
Valves.
Check Harness for damage.
33414
33
414
SWING - CURRENT FEEDBACK READING TOO LOW
Current feedback into controller is below
threshold value.
Check wiring and coil.
33415
33
415
FLOW CONTROL VALVE - CURRENT FEEDBACK READING TOO
LOW
The Engine State = ENGINE RUNNING;
The UGM commanded current > 250mA;
The difference between the commanded
current and the measured feedback cur-
rent > [the larger of (125mA) or (15% of
the commanded function Max)] for longer
than 1 second .
The UGM shall suspend Flow
Control and revert to Open
Current loop control for Flow
Control.
Table 6-3. Help Fault Codes, Displayed Faults, and Descriptions
DTC
Flash Code
Sequence
Fault Message
Fault Description
Check
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