TROUBLESHOOTING AND SCHEMATICS
GTTZ10EJ Maintenance Manual 6-3 © Mar. 2022
Fault
Code
Description
Function Restricted Solution
59 Jib down valve fault
Lift and drive functions
restricted
Jib down valve fault: check the coil wiring, if
correctly wired, check whether the coil is open or
short circuited.
68
Battery undervoltage
fault
All functions restricted
Check and immediately charge the battery
80
Platform load
exceeding 80%
Alarm allowed only
Platform load exceeding 80% alarm: the platform
load is getting near to the limit, consider not
increasing the load.
90
Platform load
exceeding 90%
Alarm allowed only
Platform load exceeding 90% alarm: the platform
load is getting near to the limit, consider not
increasing the load.
99
Platform load
exceeding 99%
Alarm allowed only
Platform load exceeding 80% alarm: the platform
load has reached the limit, do not increase any
load.
OL Platform overload All functions restricted
Platform overload error: immediately remove the
excessive load
LL Machine off-level fault
Lift and drive functions
restricted
Machine off-level fault: if the machine is off level,
try to level it up. Otherwise check the sensor and
wiring.
Table 6-2 Trouble Description and Inspection (SINOBOOM System)
Code Problem Disabled Actions Solution
E001
System Initialization
Fault
Disable All Motion
Controller memory chip may be faulted:
Power off and restart the machine. If the problem
can’t be solved, replace the controller.
E002
System
Communication Fault
Disable All Motion
Communication between controller and joystick is
interrupted:
Check whether the wiring between the ECU
controller and the PCU joystick is disconnected;
Check whether the ECU controller and the PCU
joystick plug are in good contact;
Power off and restart the machine. If the problem
can’t be solved, replace the controller.
E009
GPS Communication
Fault
Disable All Motion
GPS Communication Fault:
Check communication cable connections and
other wiring.
If the problem can’t be solved, replace the GPS
module or ECU.
E012
ECU Key Fault
Disable Chassis Control
ECU starts to work or ECU is faulted after power-
on without initialization:
Restart the machine or check the ECU controller;
Check whether the ECU controller and the PCU
handle plug are in good contact;
Power off and restart the machine. If the problem
can’t be solved, replace the controller.
E018 Pothole Guard Fault
Disable Lifting and Driving
The pothole guard switch is not turned on after the
platform is raised, or the pothole guard switch is
faulty, or the pothole guard switch harness is open
circuited:
To Next Page
Loading...
