Service Manual Manual

SECTION 6 - JLG CONTROL SYSTEM
3121171 – JLG Lift – 6-89
8313 83 13 PLATFORM LEVEL SENSOR #1 - REFERENCE VOLTAGE
OUT OF RANGE
Platform Level Sensor #1
reverence voltage is out-
side acceptable range (4.9
to 5.1 volts).
- Electronic leveling system
equipped vehicles only.
8314 83 14 PLATFORM LEVEL SENSOR #2 - REFERENCE VOLTAGE
OUT OF RANGE
Platform Level Sensor #2
reverence voltage is out-
side acceptable range (4.9
to 5.1 volts).
- Electronic leveling system
equipped vehicles only.
8315 83 15 PLATFORM LEVELING SENSOR - DISAGREEMENT The Control System reads
the sensor values at
power-up. The fault is trig-
gered when there is a ± 5
degree difference from
the initial reading.
- Electronic leveling system
equipped vehicles only.
8316 83 16 PLATFORM LEVEL SENSOR #1 - COMMUNICATIONS
LOST
Platform Level Sensor #1
serial communication lost.
- 1200S and 1350S only.
8317 83 17 PLATFORM LEVEL SENSOR #2 - COMMUNICATIONS
LOST
Platform Level Sensor #2
serial communication lost.
- 1200S and 1350S only.
8318 83 18 PLATFORM LEVELING SYSTEM TIMEOUT The Platform was unable to
maintain desired level
within range for the allotted
time.
840 84 0 <<< ENVELOPE >>>
841 84 1 BOOM ANGLE SENSOR DISAGREEMENT There is a disagreement
between the Boom Angle
Sensors.
- Envelope Control equipped
vehicles only.
842 84 2 BOOM LENGTH SWITCH FAILED The Boom Length
Switches are reporting the
same state.
- Envelope Control equipped
vehicles only.
843 84 3 BOOM LENGTH SWITCH/SENSOR DISAGREEMENT There is a disagreement
between the Boom Length
Switch and the Boom
Length Sensor.
- Envelope Control equipped
vehicles only.
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.
-1200/1350 only
846 84 6 BOOM LENGTH SENSOR - OUT OF RANGE LOW Boom Length Sensor out of
range low.
- Envelope Control equipped
vehicles only.
-1200/1350 only
847 84 7 BOOM LENGTH SENSOR - VALUE OUT OF RANGE HIGH Boom Length out of range
high.
- Envelope Control equipped
vehicles only.
-1200/1350 only
848 84 8 BOOM LENGTH SENSOR - VALUE OUT OF RANGE LOW Boom Length out of range
low.
- Envelope Control equipped
vehicles only.
-1200/1350 only
Table 6-6. Diagnostic Trouble Code Chart
DTC
Flash
Code
Sequence
Fault Message Fault Description Check