JLG G12-55A AccuPlace Service Manual - Manual (Page 213)

9.95 G10-55A & G12-55A AccuPlace
Electrical System
CANBUS
FAILURE – CAB
JOYSTICK 6617 UGM has not received a
Main Joystick CAN Bus
message within 60ms. Y Cycle power to see if fault clears.
With engine off but power on, verify with a
multimeter that approximately 12V is
present across power and ground
connections of the cab harness pins.
With power off, verify with a multimeter
that the resistance between CAN-H and
CAN-L wire of the joystick is
approximately 120ohms.
Verify the integrity of the joystick
connector pins.
Reconnect joystick and cycle power to see
if fault clears. If fault is still present and
boom needs moved, use the Analyzer to
command boom functions under
DIAGNSTICS/DEBUG/CAB JYSTK SIM.
CANBUS
FAILURE – BOOM
ANGLE SENSOR 6621 UGM has not received Left
Boom Angle Sensor CAN
Bus message within 60ms. Y Cycle power to see if fault clears. If
multiple CAN Bus faults are occurring, the
integrity of connections and continuity of
the entire CAN Bus must be checked.
Otherwise, plug and unplug each end of
the Boom Angle cable, both at the sensor
and CAN Distribution module. Verify
integrity of pins and that none are bent
within the small round M12 connector. If
fault still exists after cycling power,
disconnect cable at Boom Length sensor
end and connect to Left Boom Angle
sensor. If Boom Angle CAN Bus fault still
exists (Boom Length CAN Bus fault will
also be present since that sensor is
disconnected), then Boom Angle sensor
can be considered suspicious. If fault
clears, then try Boom Length cable at
connection occupied by Boom Angle
sensor to verify the integrity of CAN
Distribution module. If successful, replace
Boom Angle cable.
Check sensor for damage.
Help Message
1
DTC Fault Condition
(for configurable items,
fault applies only if
configured)
Fault
Requires
AccuPlace
Reset?
Action(s)