JLG 1500SJ Service Manual User Manual
Page 574
SECTION 6 - JLG CONTROL SYSTEM
6-122
– JLG Lift –
3121262
844
84
4
BOOM LENGTH SENSOR NOT DETECTING LENGTH
CHANGE
The Boom Length Sensor
is not changing during a
boom telescope com-
mand.
- Envelope Control equipped
vehicles only.
845
84
5
BOOM LENGTH SENSOR - OUT OF RANGE HIGH
Boom Length Sensor out of
range high.
- Envelope Control equipped
vehicles only.
846
84
6
BOOM LENGTH SENSOR - OUT OF RANGE LOW
Boom Length Sensor out of
range low.
- Envelope Control equipped
vehicles only.
847
84
7
BOOM LENGTH SENSOR - VALUE OUT OF RANGE HIGH
Boom Length out of range
high.
- Envelope Control equipped
vehicles only.
848
84
8
BOOM LENGTH SENSOR - VALUE OUT OF RANGE LOW
Boom Length out of range
low.
- Envelope Control equipped
vehicles only.
849
84
9
BOOM ANGLE SENSOR #1 - COMMUNICATIONS FAULT
Boom Angle Sensor #1
communications lost.
- Envelope Control equipped
vehicles only.
8410
84
10
BOOM ANGLE SENSOR #2 - COMMUNICATIONS FAULT
Boom Angle Sensor #2
communications lost.
- Envelope Control equipped
vehicles only.
8411
84
11
BOOM ANGLE SENSOR #1 - INVALID ANGLE
Boom Angle Sensor #1 out
of range.
- Envelope Control equipped
vehicles only.
8412
84
12
BOOM ANGLE SENSOR #2 - INVALID ANGLE
Boom Angle Sensor #2 out
of range.
- Envelope Control equipped
vehicles only.
8413
84
13
WRONG TELESCOPE RESPONSE
Boom telescope is moving
in the opposite direction of
the command.
- Envelope Control equipped
vehicles only.
8414
84
14
WRONG LIFT RESPONSE
Boom lift is moving in the
opposite direction of the
command.
- Envelope Control equipped
vehicles only.
8479
84
79
MAIN CYLINDER ANGLE SENSOR #1 - OUT OF RANGE
LOW
8480
84
80
MAIN CYLINDER ANGLE SENSOR #1 - OUT OF RANGE
HIGH
8492
84
92
MAIN CYLINDER ANGLE SENSOR #2 - OUT OF RANGE
LOW
8493
84
93
MAIN CYLINDER ANGLE SENSOR #2 - OUT OF RANGE
HIGH
8494
84
94
MAIN CYLINDER ANGLE SENSORS - DISAGREEMENT
8495
84
95
TURN TABLE SENSOR #1 - FREQUENCY OUT OF RANGE
LOW
8496
84
96
TURN TABLE SENSOR #1 - FREQUENCY OUT OF RANGE
HIGH
8497
84
97
TURN TABLE SENSOR #2 - FREQUENCY OUT OF RANGE
LOW
8498
84
98
TURN TABLE SENSOR #2 - FREQUENCY OUT OF RANGE
HIGH
8499
84
99
CHASSIS TURN TABLE SENSORS - DISAGREEMENT
84100
84
100
CHASSIS TURN TABLE SENSORS AND DRIVE ORIENTA-
TION SWITCH - DISAGREEMENT
84101
84
101
CHASSIS TURN TABLE SENSORS - NOT CALIBRATED
Table 6-8. Diagnostic Trouble Code Chart
DTC
Flash
Code
Sequence
Fault Message
Fault Description
Check