SIMULTANEITY
This parameter setting governs whether simultaneous
activation of hydraulic and traction functions is al-
lowed. "0" = no simultaneity, "1" = limited simultaneity,
and "2" = full simultaneity.
RESTORE DEFAULTS
This function is used to restore all display viewable
parameter settings to the factory default settings.
SPEED UNIT
This parameter sets the units of measure for the
speed value.
TEMP UNIT
This parameter sets the units of measure for tempera-
ture values.
Troubleshooting
GENERAL
The controllers are sealed units with no serviceable
components. Troubleshooting is usually limited to ac-
cessing status codes and following the diagnostic pro-
cedures listed in the status code charts.
Use standard testing procedures to verify inputs and
outputs when necessary.
CAUTION
Never attempt to probe through the back of the
connector plugs of the motor controller. The
plugs are special sealed plugs. Probing through
the back of the plugs will destroy the seal and can
cause a short circuit. If a circuit must be tested for
voltage, check for voltage at an amp-type plug, a
switch, or a component. If a circuit is suspect,
check the circuit for continuity from the front (pin
end) of the plug.
Standard probes are too large to be inserted into
the center of the female pins (sockets) of the spe-
cial sealed plugs and can expand the pins. Expan-
ded pins will not provide good connections once
the plug is reconnected. The connectors are sha-
ped to allow the insertion of a flat blade screw-
driver into the connector. After inserting the
screwdriver into the connector, attach probes
with alligator clips to the shank of the screwdriver
to obtain readings. An additional method would
be to use a breakout kit.
If the controller detects an issue, a status code is dis-
played on the display panel.
Once the status code number is obtained, follow the
procedures outlined in the status code charts of this
manual to determine the problem.
NOTE: Due to the interaction of the controller with all
lift truck functions, almost any status code or control-
ler fault could be caused by an internal failure of the
controller. After all other status code procedures have
been followed and no problem is found, the controller
should be replaced as the last option to correct the
problem. A Node shall be given, indicating which de-
vice generated the fault.
Tools and test equipment required are:
• Clip Leads
• Digital Multimeter (20,000 ohms per volt)
• Basic Hand Tools
Check resistance on the proper scale from frame to
power and controller terminals. Resistance of less
than 20,000 ohms can cause misleading symptoms.
Resistance of less than 1000 ohms indicates a short
and should be corrected immediately.
The on-board diagnostic system employed on this lift
truck can assist in the troubleshooting process. Read
and be familiar with the instructions for accessing and
using the dash display diagnostic system.
Prior to troubleshooting systems and components on
this lift truck, ensure the battery is the correct voltage
and is fully charged. Make sure the battery connector
contacts are clean of corrosions and the battery polar-
ity within the connector is correct. Inspect to ensure
all fuses are correct and have not failed. Ensure the
key switch is in the ON position when making voltage
checks or checking the operator of a component.
2200 YRM 1415 Troubleshooting
11
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