JLG 1250AJP Service Manual User Manual
Page 524
SECTION 6 - JLG CONTROL SYSTEM
6-92
– JLG Lift –
3121171
8441
84
41
TOWER CYLINDER ANGLE MOVEMENT WITHOUT COM-
MAND
The Tower Cylinder Angle
Sensor is changing without
a tower lift command.
- Envelope Control equipped
vehicles only.
-1250
8442
84
42
MAIN TRANSPORT ANGLE SWITCH FAILED
The Main Boom Angle
Switch is bad.
- Envelope Control equipped
vehicles only.
-1250
8443
84
43
TWR TRANSPORT SWITCH DISAGREEMENT
There is a disagreement
between the Tower Boom
Length Switch and the
Tower Length Sensor.
- Envelope Control equipped
vehicles only.
-1250
8444
84
44
TRANSPORT DUAL CAPACITY SWITCHES BAD
Both the Dual Capacity
Switch and the Transport
Switch are bad.
- Envelope Control equipped
vehicles only.
-1250
8445
84
45
TRANSPORT DUAL CAPACITY BAD TRANSITION
The Dual Capacity Switch
and the Transport Switch
changed state out of order.
- Envelope Control equipped
vehicles only.
-1250
8446
84
46
MAIN TRANSPORT LENGTH SWITCH DISAGREEMENT
There is a disagreement
between the Main Boom
Transport Length
Switches.
- Envelope Control equipped
vehicles only.
-1250
8447
84
47
MAIN DUAL CAPACITY LENGTH SWITCH DISAGREE-
MENT
There is a disagreement
between the Main Boom
Dual Capacity Length
Switches.
- Envelope Control equipped
vehicles only.
-1250
8448
84
48
MAIN TRANSPORT ANGLE SWITCH/SENSOR DIS-
AGREEMENT
There is a disagreement
between the Main Boom
Angle Switch and the Main
Boom Angle Sensor.
- Envelope Control equipped
vehicles only.
-1250
8449
84
49
TOWER CYLINDER ANGLE SWITCH/SENSOR DIS-
AGREEMENT
There is a disagreement
between the Tower Boom
Angle Switch and the
Tower Cylinder Angle Sen-
sor.
- Envelope Control equipped
vehicles only.
-1250
8450
84
50
NEW MAIN ANGLE SENSOR #1 DETECTED
A new Main Angle Sensor 1
has been detected.
-1250
8451
84
51
NEW MAIN ANGLE SENSOR #2 DETECTED
A new Main Angle Sensor 2
has been detected.
-1250
8452
84
52
TOWER LENGTH SWITCH/SENSOR DISAGREEMENT
There is a disagreement
between the Tower Length
Switch and the Tower
Length Sensor.
- Envelope Control equipped
vehicles only.
-1250
8453
84
53
WRONG MAIN TELE RESPONSE
Main telescope is moving
in the opposite direction of
the command.
- Envelope Control equipped
vehicles only.
-1250
8454
84
54
WRONG MAIN LIFT RESPONSE
Main lift is moving in the
opposite direction of the
command.
- Envelope Control equipped
vehicles only.
-1250
Table 6-6. Diagnostic Trouble Code Chart
DTC
Flash
Code
Sequence
Fault Message
Fault Description
Check