Ditch Witch 410SX - Manual (Page 79)

Systems and Equipment - 78
410sx Operator’s Manual
Engine Diagnostic Codes
Engine Diagnostic Codes
This unit is equipped with a self-diagnostic computer-controlled fuel management system. A variety of
sensors send input data to an ECU (Electronic Control Unit) that compares inputs with pre-programed
parameters and sends output voltage to a variety of actuators to adjust and operate the engine within
specified parameters.
Warning indicators on the engine display tell the operator when critical and non-critical faults develop. Non-
critical faults occur when engine sensors detect moderate trouble with coolant temperature, oil pressure,
oxygen levels, or intake air temperature. Non-critical faults cause the check engine light/malfunction
indicator to light. Critical faults cause the engine to derate and/or shutdown. In both cases, a fault code is
stored in the ECU. If the fault corrects itself, the engine will gradually return to normal power. The check
engine light/malfunction indicator will stay on until the trouble goes away, but the fault code remains stored.
Engine shutdown will occur due to critical faults in engine coolant temperature or oil pressure. Before
shutdown, the operator alert indicator will light continuously and the engine will begin a rapid power derate.
If the fault does not improve in 30 seconds, the engine will shutdown. Fault codes are shown on the engine
information display.
The following chart lists critical codes that the operator can troubleshoot. For all other codes, contact your
Ditch Witch dealer.
DTC SPN FMI DTC Name Detected Item DTC Set Conditions System Action
P0524 100 1 Oil pressure
low Low oil pressure Run time wait for oil pressure
exceeds 15 seconds.
RPM lower limit is below 600 rpm
Oil pressure switch is receiving
less than 1.5V input
Engine shutdown
P0183 174 3 Fuel Temp:
gasoline high Operating in a hot
environment
Sensor out of
calibration
Fuel temperature is above
140°F/60°C Power derate
P0182 174 4 Fuel Temp:
gasoline low Operating in a frigid
temperature
Sensor out of
calibration
Fuel temperature is below -35°F/
-37°C None
P0563 168 15 Battery
voltage high System voltage
abnormally high Voltage is above 16VDC AL disable KC
Low rev limit
P0562 168 17 Batter voltage
low Wiring harness
open/short/damage
Battery abnormality
Voltage is below 9VDC and rpm
is above 100 rpm AL disable KC
Power derate