Komatsu PC200-8M0, Shop Manual, Page: 577 / 1254

SEN06133-00
PC200, 200LC, 220, 220LC-8M0 40-301
7
301 Troubleshooting by failure code, Part 1
Failure code [989N00] Engine Controller Lock Caution3
Failure code [989N00] Engine Controller Lock Caution3
Action
level
Failure code
Failure
Engine controller lock caution3
(Machine monitor system)
– 989N00
Detail of failure q Engine controller lock up is detected (Factor 3).
Action of con-
troller
q
Tries automatic recovery.
q If cause of failure disappears, machine becomes normal by itself.
Problem on
machine
Related infor-
mation
q
Method of reproducing failure code: Failure code cannot be reproduced since machine recovers
when cause of failure disappears.
Cause Procedure, measuring location, criteria and remarks
1 Defective engine controller
If this failure code is generated repeatedly, engine controller may be defective.
(Since this is an internal defect, troubleshooting cannot be performed.)