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 troubleshooting
process by carefully inspecting the wiring involving
the device or devices noted by the on-board diagnos-
tics system.
STATUS CODES
Make sure the parameter values are correct for your
lift truck to ensure the trouble is not just an incorrect
setting. See function settings to set the correct param-
eter values. If there is no status code display and the
lift truck does not operate correctly, there may be a
fault in the RH traction controller.
The status codes are numbers for malfunction or lift
truck operation that are not correct and that the motor
controller can sense. The display will indicate this
code number on the LCD screen.
NOTE: There are identifiers to determine which de-
vice generated the code:
Node X = XXXX (12544 Node 3)
Node 3 = RH Traction
Node 4 = LH Traction
Node 5 = Pump
Node 16 = Display
The controller senses the following types of malfunc-
tion:
• Input voltages that are too high or too low
• Input voltages in the wrong sequence or
• Correct input voltages that occur at the wrong
time
• Internal software checksum errors
NOTE: A status code indication does not always
mean that there is a malfunction. A temporary opera-
tion condition can cause a status code display.
These code numbers are only indicators that may
help diagnose a possible malfunction. A short descrip-
tion of the different status codes is shown in Table 3.
The Fault Message charts in this section have a more
complete description of the status code, the circuit
that has generated the input for the status code, the
symptom, and the possible cause.
Table 3. Fault Codes
Code Description
00247
System has detected a serial number mis-match between RH Traction (master) and
display.
Node 3 (16)
04098
The steer potentiometer is out of calibration - (RH Node 3)
Node 3
08784
Contactor driver coil short to Battery Negative (B−) or open circuit detected - (RH Node
3)
Node 3
08786
Line Contactor or Electric Brake coil short detected - (RH Node 3)
Node 3
08786
Line Contactor or Electric Brake coil short detected - (RH Node 3, LH Node 4)
Node 4
08961
One of the on/off valve coil is detected as shorted - (RH Node 3)
Node 3
Troubleshooting 2200 YRM 1415
12
To Next Page
Loading...
