JLG 510AJ Service Manual - Manual (Page 350)

SECTION 6 - JLG CONTROL SYSTEM
6-68 – JLG Lift – 3121181
2/2 Flash code 2/2 indicates problems with drive & steer selection.
Except where noted, these faults are not reported during 2 sec-
ond power-up sequence. 3
DRIVE LOCKED – JOYSTICK MOVED
BEFORE FOOTSWITCH Drive was selected before and during footswitch closure. Can be
reported during power-up sequence.
FSW INTERLOCK TRIPPED Footswitch was closed for seven seconds with no function selected.
Can be reported during power-up sequence.
STEER LOCKED – SELECTED BEFORE
FOOTSWITCH Steer was selected before and during footswitch closure.
STEER SWITCHES FAULTY Both steer switches are active at the same time.
D/S JOY. OUT OF RANGE LOW Resistive joysticks: These faults do not occur.
D/S JOY. OUT OF RANGE LOW Resistive joysticks: These faults do not occur.
D/S JOY. OUT OF RANGE HIGH Resistive joysticks: These faults do not occur if the Vref voltage is
below 8.1 volts. If Vref is above 7.7 volts, Vref is operating out of toler-
ance or a short to battery has occurred.
D/S JOY. CENTER TAP BAD Resistive joysticks: These faults occur when the center tap voltage is
not between 3.08 volts and 3.83 volts. Due to resistor tolerances
there is a +/-.1 volt range around these values where the fault may be
indicated.
WAITING FOR FSW TO BE OPEN Footswitch was closed when platform mode was selected. Can be
reported during power-up sequence.
FOOTSWITCH SELECTED BEFORE START The user attempted to start the machine with the
footswitch engaged.
Table 6-9. Help Fault Codes, Displayed Faults, and Descriptions
Fault Flash
Code
Analyzer Display Description Priority