Komatsu GD555-5 Operation & Maintenance Manual page 245

TROUBLESHOOTING
FAILURE CODES
If any abnormality occurs, stop the machine in a safe place, set the gear shift lever to the P (Parking) position, then
check the failure code and ask your Komatsu distributor to carry out repairs.
(1) Character display
(2) Machine monitor mode selector switch 2
When an abnormality display code appears on character display (1), take appropriate remedies based upon the
following table.
REMARK
If different kinds of failures occur at the same time, their failure codes are arranged in the order of seriousness in the
display.
The order of seriousness in this case is E03, E02 and E01, starting from the most serious one.
3 - 192
(3) Centralized warning lamp
OPERATION