Komatsu PC88MR-10 Shop Manual page 595

a In this table, failure codes are arranged in the order of characters from numeric to alphabetic character.
a Applicable component is the controller or machine monitor which checks the system.
MON: Machine monitor
ENG: Engine controller
PUMP: pump
KOMTRAX: KOMTRAX terminal
a The failure codes that do not have numbers in the action level columns are not displayed on the standard
screen even when a failure related to them occurs. They are simply recorded in the abnormality record
(electrical system or mechanical system) of the service menu.
a History category means the classification of either electrical system or mechanical system which is used
for storage in the Failure History of the service menu.
For details, see "Troubleshooting by failure code (Display of code)".
PC88MR-10
40 Troubleshooting
Related information on troubleshooting
40-107