Komatsu PC200-8M0, Shop Manual, Page: 582 / 1254

301 Troubleshooting by failure code, Part 1
Failure code [B@BAZG] Eng Oil Press Low
40-301
12
PC200, 200LC, 220, 220LC-8M0
SEN06133-00
Failure code [B@BAZG] Eng Oil Press Low
Action
level
Failure code
Failure
Engine Oil Pressure Low
(Engine controller system)
L03 B@BAZG
Detail of failure
q
While engine is running, engine controller detects engine oil pressure drop (sensor contact is
closed) from signal voltage of engine oil pressure switch.
Action of con-
troller
q
Displays engine oil pressure monitor red on machine monitor.
q
If cause of failure disappears, machine becomes normal by itself.
Problem on
machine
q
If machine is operated as it is, engine may be damaged.
Related infor-
mation
q
Signal from engine oil pressure switch is input to engine controller. If engine oil pressure switch is
determined to be closed (ON) while engine is running, engine controller transmitts this signal to
machine monitor to display this failure code.
q
Method of reproducing failure code: Start engine.
Cause Procedure, measuring location, criteria and remarks
1
Dropped engine oil pres-
sure (when system works
properly)
Engine oil pressure may be low. Check it and remove cause if it is low.
2
Defective engine oil pres-
sure monitoring system
If no failure is found by check on cause 1, engine oil pressure monitoring system may
be defective. Perform troubleshooting for "E-6 Emergency stop monitor lights up while
engine is running".