2200 SRM 1286
Troubleshooting
Prior to troubleshooting systems and components on
this lift truck, ensure the battery is the correct volt-
age and is fully charged. Make sure the battery con-
nector contacts are clean of corrosions and the bat-
tery polarity 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.
Many faults noted by lift truck systems are the result
of loose wiring connections and/or broken or shorted
wiring within the lift truck. Begin the troubleshoot-
ing process by carefully inspecting the wiring involv-
ing the device or devices noted by the on-board diag-
nostics system.
NON-STATUS CODE ERRORS
Powered Black Screen
WARNING
Lift the forklift and block the frame with the
drive tire suspended off the floor for safety
when performing this check.
NOTE:
Use
these
procedures
along
with
the
schematic and wiring diagrams.
In some instances, the dash display screen may
power ON showing only a powered black screen. In
this state, neither hydraulic nor traction functions
will operate.
This error can most easily be trou-
bleshot by connecting an ETACC diagnostic system
(available at you local Hyster lift truck dealer) to the
lift truck PC Service Tool Connector in the electrical
compartment. The ETACC will scan the system and
determine the component which is not communicat-
ing. However, in the absence of an ETACC tool, the
truck systems can be manually checked by a tech-
nician with a multimeter. Follow the steps below to
troubleshoot this error.
NOTE:
Ensure the battery if fully charged before you
begin the following tests.
1.
Do you have access to an ETACC diagnostic tool?
Yes - Connect ETACC to the forklift PC Ser-
vice Tool connector following the instructions
in the section Troubleshooting and Adjust-
ments Using the AC Controls Program
(ETACC) 2200 SRM 1058. ETACC will indi-
cate the component not communicating.
No - Proceed to Step 2.
2.
Measure voltage in CPS_115, pin 1 of the tiller
harness. Is voltage between 12V to 15V?
Yes - Proceed to Step 3.
No - Proceed to Static Checks on Power and
Ground Connections.
3.
Is the voltage between 12 and 15V?
Yes - Check Traction Encoder connector, pin 1
of CPS03 to have same voltage. Ensure that
power is not shorted with ground or signals in
encoder connector. Key off the truck, discon-
nect encoder connector, and measure continu-
ity between pin 1 (14V) and pin 2 (encoder sig-
nal), pin 3 (encoder signal) and pin 4 (ground).
If wires found shorted, repair connection as
needed. If encoder connector tested good, pro-
ceed to Step 4.
No - Then the voltage shall be approximately
same as voltage seen at B+.
- If yes, proceed to Step 4- If not, Check if there
is continuity between battery, key switch and
pin 1 of controller.
- If continuity not found, repair connection as
needed.
4.
Measure voltage at pin 5 of tiller harness. Is volt-
age greater than 4.5 volts?
Yes - Proceed to Step 5.
No - Test the control card for proper function.
See Control Card Functional Test in this sec-
tion.
5.
Measure voltage at CPS_05, pin 30 of main har-
ness. Is voltage between 12 and 15 volts?
Yes - Check the tiller harness and ensure all
pins in connectors of tiller harness and main
harness are properly seated. See Tiller Har-
ness Shorts and Continuity Checks in this sec-
tion.
No - Replace controller.
6.
Was tiller harness verified ok?
Yes - It is necessary to connect to the ETACC
diagnostic tool and check the software ver-
sions for control card, dash display, and con-
troller. Refer to the section Troubleshooting
and Adjustments Using the AC Controls
Program (ETACC) 2200 SRM 1058.
No - Repair or replace tiller harness.
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