Service Manual Manual

SECTION 6 - JLG CONTROL SYSTEM
6-84 – JLG Lift – 3121171
434 43 4 OIL PRESSURE SHORT TO GROUND The Oil Pressure Sensor
reading is < 0.1V for more
then 5 seconds.
- Deutz engine only.
- Not reported during engine
start.
435 43 5 COOLANT TEMPERATURE SHORT TO GROUND The Coolant Temperature
Sensor reading is < 0.1V.
- Deutz engine only.
437 43 7 ENGINE TROUBLE CODE Displays engine SPN FMI
code.
438 43 8 HIGH ENGINE TEMP (Ford engine only) The
engine temperature is >
117 C.
(Deutz engine only) The
engine temperature is >
130 C.
- Ford / Deutz engine only.
439 43 9 AIR FILTER BYPASSED The Air Filter is clogged.
4310 43 10 NO ALTERNATOR OUTPUT Battery voltage is < 11.5
volts for more then 15 sec-
onds after engine start.
4311 43 11 LOW OIL PRESSURE (Ford engine only) The
ECM has reported a low oil
pressure fault.
(Deutz engine only) Oil
pressure is < 8 PSI for more
then 10 seconds after
engine start.
- Ford / Deutz engine only.
4313 43 13 THROTTLE ACTUATOR FAILURE The engine RPM is > XXX
for more then XX seconds.
4314 43 14 WRONG ENGINE SELECTED - ECM DETECTED A ECM was detected with a
non-ECM type engine
selected.
4322 43 22 LOSS OF ENGINE SPEED SENSOR The engine RPM sensor
indicates 0 RPM AND the
Oil Pressure Sensor indi-
cates > 8 PSI for three sec-
onds.
- Diesel engine only.
4323 43 23 SPEED SENSOR READING INVALID SPEED The engine RPM sensor
indicates > 4000 RPM.
- Diesel engine only.
440 44 0 <<< BATTERY SUPPLY >>>
441 44 1 BATTERY VOLTAGE TOO LOW - SYSTEM SHUTDOWN Battery voltage is < 9V.
442 44 2 BATTERY VOLTAGE TOO HIGH - SYSTEM SHUTDOWN Battery voltage is > 16V.
445 44 5 BATTERY VOLTAGE LOW Battery voltage is < 11V for
more then 5 seconds.
450 45 0 <<< CAN CONTROLLED VALVES >>>
451 45 1 MAIN LIFT PVG VALVE - INTERNAL FAULT The Main Lift PVG Valve
has an internal fault.
- 1250AJP only.
452 45 2 TOWER LIFT PVG VALVE - INTERNAL FAULT The Tower Lift PVG Valve
has an internal fault.
- 1250AJP only.
453 45 3 TOWER TELESCOPE PVG VALVE - INTERNAL FAULT The Tower Telescope PVG
Valve has an internal fault.
- 1250AJP only.
Table 6-6. Diagnostic Trouble Code Chart
DTC
Flash
Code
Sequence
Fault Message Fault Description Check