SECTION 6 - JLG CONTROL SYSTEM
6-28
31215031
33417
33
417
LIFT - CURRENT FEEDBACK READING LOST
Measured feedback current < 225mA
while PWM output > 40% for a period of
100ms.
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
418
SWING - CURRENT FEEDBACK READING LOST
Current feedback into controller not
detected.
Check wiring and coil.
33419
33
419
FLOW CONTROL VALVE - CURRENT FEEDBACK READING LOST
Measured feedback current < 225mA
while PWM output >40% for a period of
100ms.
The UGM shall suspend Flow
Control and revert to Open
Current loop control for Flow
Control.
33488
33
488
SWING FLOW CONTROL VALVE - SHORT TO GROUND
There is a short to the Ground to the Swing
Flow Control Valve.
Check Harness for damage.
33575
33
575
ECM PULL DOWN RESISTOR - OPEN CIRCUIT
There is an Open Circuit to the ECM Pull
Down Resistor.
Check Harness for damage.
340
34
0
<<< PLATFORM OUTPUT DRIVER >>>
341
34
1
PLATFORM LEVEL UP VALVE - OPEN CIRCUIT
There is an Open Circuit to the Platform
Level Up Valve.
Check Harness for damage.
342
34
2
PLATFORM LEVEL UP VALVE - SHORT TO BATTERY
There is a Short to Battery to the Platform
Level Up Valve.
Check Harness for damage.
343
34
3
PLATFORM LEVEL UP VALVE - SHORT TO GROUND
There is a Short to Ground to the Platform
Level Up Valve.
Check Harness for damage.
344
34
4
PLATFORM LEVEL UP VALVE - SHORT TO BATTERY OR OPEN
CIRCUIT
There is a Short to Battery or an Open Cir-
cuit to the Platform Level Up Valve.
Check Harness for damage.
345
34
5
PLATFORM LEVEL DOWN VALVE - OPEN CIRCUIT
There is an Open Circuit to the Platform
Level Down Valve.
Check Harness for damage.
346
34
6
PLATFORM LEVEL DOWN VALVE - SHORT TO BATTERY
There is a short to Battery to the Platform
Level Down Valve.
Check Harness for damage.
347
34
7
PLATFORM LEVEL DOWN VALVE - SHORT TO GROUND
There is a short to the Ground to the Plat-
form Level Down Valve.
Check Harness for damage.
348
34
8
PLATFORM LEVEL DOWN VALVE - SHORT TO BATTERY OR OPEN
CIRCUIT
There is a Short to Battery or an Open Cir-
cuit to the Platform Level Down Valve.
Check Harness for damage.
349
34
9
PLATFORM ROTATE LEFT VALVE - OPEN CIRCUIT
There is an Open Circuit to the Platform
Rotate Left Valve.
Check Harness for damage.
3410
34
10
PLATFORM ROTATE LEFT VALVE - SHORT TO BATTERY
There is a short to Battery to the Platform
Rotate Left Valve.
Check Harness for damage.
3411
34
11
PLATFORM ROTATE LEFT VALVE - SHORT TO GROUND
There is a short to Ground to the Platform
Rotate Left Valve.
Check Harness for damage.
3412
34
12
PLATFORM ROTATE RIGHT VALVE - OPEN CIRCUIT
There is an Open Circuit to the Platform
Rotate Right Valve.
Check Harness for damage.
3413
34
13
PLATFORM ROTATE RIGHT VALVE - SHORT TO BATTERY
There is a short to Battery to the Platform
Rotate Right Valve.
Check Harness for damage.
3414
34
14
PLATFORM ROTATE RIGHT VALVE - SHORT TO GROUND
There is a short to Ground to the Platform
Rotate Right Valve.
Check Harness for damage.
3415
34
15
JIB LIFT UP VALVE - OPEN CIRCUIT
There is an Open Circuit to the JIB Lift Up
Valve.
Check Harness for damage.
Table 6-3. Help Fault Codes, Displayed Faults, and Descriptions
DTC
Flash Code
Sequence
Fault Message
Fault Description
Check
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