Doosan P260/HP220WYM, Operation & Maintenance Manual

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Operating & Maintenance Manual Troubleshooting
62 Book: 46553446 (3-15-2010) Rev A
Engine Diagnostic Codes
• Failure flashes can be read on the Engine Failure Lamp when the ON/OFF ignition
switch is “ON” or when the unit is running.
• The Engine Failure Lamp is located behind the front end panel.
• The Failure Lamp is luminated for 2 seconds when the ECU is powered on.
• A lamp flash duration of 0.5 seconds is a “Short” flash.
• A failure flash sequence of “1 long and 3 short” would be displayed by flashing the
lamp one time with a duration of 1/5 seconds and three times with a duration of .5
seconds.
• When two or more failures have occurred simultaneously, the failure lamp will pause
for 3 seconds between flash sequences.
• Failure flash sequences continuously repeat with 3 second pauses between flash
sequences until the failure is corrected.
Failure Failure Flashes Remark
Coolant temperature sensor
failure 4 Short
Speed sensor failure 6 Short
Rack position sensor failure 7 Short
Rack actuator failure 8 Short
EGR valve failure 1 Long and 3 Short
CSD solenoid valve failure 1 Long and 4 Short
Main relay failure 1 Long and 6 Short
Rack actuator relay failure 1 Long and 7 Short
ECU temperature alarm 2 Long and 5 Short ECU temp.>221°F/105°C
Coolant temperature alarm 3 Long and 6 Short Coolant temp.>230°F/110°C
ECU failure 4 Long and 1 Short