Komatsu PC200-8M0 Shop Manual page 844

SEN06138-00
Failure 5) Air cleaner clogging monitor lights up in yellow.
q
Related information
Cause
Clogging of air cleaner
1
(when system works properly)
Defective air cleaner clogging
2
switch system
6) Engine state monitor light up in yellow because of water separator sensor detection. (high
Failure
q
Related information
Cause
High water level in water separator
1
(when system works properly)
Defective water-in-fuel sensor
2
system (engine controller circuit)
3 Defective machine monitor
22
40-400
Air cleaner clogging switch signal can be checked with monitoring function.
(Code: 04501 Monitor input 2)
Air cleaner may be clogged. Check it, then clean or replace if necessary.
Perform troubleshooting for failure code [AA10NX].
water level in water separator)
Signal of water detection by fuel filter sensor can be checked with monitoring function.
(Code: 18800 Condition of WIF sensor)
Full of water is detected in water separator. Check and drain water separator.
If no failure is found by check on cause 1, water-in-fuel sensor system may be
defective. Perform troubleshooting for failure codes [CA428] and [CA429]
If no failure is found by checks on causes 1 and 2, machine monitor may be
defective
(Since this is an internal defect, troubleshooting cannot be performed.)
400 Troubleshooting of electrical system (E-mode)
E-5 Precaution monitor lights up while engine is running
Procedure, measuring location, criteria and remarks
Procedure, measuring location, criteria and remarks
PC200, 200LC, 220, 220LC-8M0