JLG 450A_AJ Series II Service Manual - Manual (Page 406)

SECTION 6 - JLG CONTROL SYSTEM
6-70 – JLG Lift – 3121180
MAIN LIFT PVG VALVE COMMAND
IMPROPER Main boom lift pvg valve received invalid control system command.
TOWER LIFT PVG VALVE COMMAND
IMPROPER Tower boom lift pvg valve received invalid control system command.
TOWER TELESCOPE PVG VALVE
COMMAND IMPROPER Tower boom telescope pvg valve received invalid control system command.
MAIN LIFT PVG VALVE TIMEOUT Main boom lift pvg valve has not received a position command in 250mS.
TOWER TELESCOPE PVG VALVE
TIMEOUT Tower boom lift pvg valve has not received a position command in 250mS.
TOWER TELESCOPE PVG VALVE
TIMEOUT Tower boom telescope pvg has not received a position command in 250mS.
MAIN LIFT PVG VALVE SETUP FAULT Main boom lift pvg valve setup data is incorrect. Requires valve calibration.
TOWER LIFT PVG VALVE SETUP
FAULT Incorrect tower boom lift pvg valve setup data. Requires valve calibration.
TOWER TELESCOPE PVG VALVE
SETUP FAULT Incorrect tower boom telescope pvg valve setup data. Requires valve calibra-
tion.
MAIN LIFT PVG VALVE SENT UNREC-
OGNIZED FAULT Main boom lift pvg valve sent unrecognized fault.
TOWER LIFT PVG VALVE SENT
UNRECOGNIZED FAULT Tower boom lift pvg valve sent an unrecognized fault.
TOWER TELESCOPE PVG VALVE
SENT UNRECOGNIZED FAULT Tower boom telescope pvg valve sent an unrecognized fault.
MAIN LIFT PVG VALVE PARAMETERS
INCORRECT Main lift pvg valves spool data is incorrect. Requires valve calibration.
TOWER LIFT PVG VALVE PARAME-
TERS INCORRECT The tower lift pvg valves spool data is incorrect. Requires valve calibration.
TOWER TELESCOPE PVG VALVE
PARAMETERS INCORRECT The tower telescope pvg valves spool data is incorrect. Requires valve calibra-
tion.
MAIN LIFT PVG VALVE LOCATION
IMPROPER Main lift pvg valve was hosed wrong or wiring incorrect during calibration.
TOWER LIFT PVG VALVE LOCATION
IMPROPER Tower lift pvg valve was hosed wrong or wiring incorrect during calibration.
TOWER TELESCOPE PVG VALVE
LOCATION IMPROPER Tower telescope pvg valve was hosed wrong or wiring incorrect during calibra-
tion.
MAIN LIFT PVG VALVE WIRING
INCORRECT Power wire for main lift pvg valve not wired to that valve.
TOWER LIFT PVG VALVE WIRING
INCORRECT Power wire for tower lift pvg valve not wired to that valve.
TOWER TELESCOPE PVG VALVE
WIRING INCORRECT Power wire for tower telescope pvg valve not wired to that valve.
5/5 Flash code 5/5 indicates problems with vehicle engine RPM or the
encoder. Not reported during 2 second power-up. 8
SPEED SENSOR READING INVALID
SPEED Diesel engines only. RPM pickup indicating a speed greater than 4000 RPM or
approximately 8875 Hz.
SPEED INPUT LOST Diesel engines only. No RPM detected and oil pressure input reading above 8
PSI for more than three seconds. This is probably due to wiring problems at
ground module or a faulty speed sensor.
Table 6-8. Help Fault Codes, Displayed Faults, and Descriptions - S/N 0300066949 & S/N 1300000001 to Present
Fault Flash
Code
Communicated (Displayed on
Analyzer) Fault
Description Priority