Komatsu ecot3 PC300LC-8 Shop Manual page 685

40 Troubleshooting
Possible causes
and standard
value in normal
6 Defective pump controller
state
Circuit diagram related to F pump pressure sensor of pump controller
PC300, 350-8
Cause Standard value in normal state/Remarks on troubleshooting
a
Prepare with starting switch OFF, then start engine and carry
out troubleshooting.
CP01
Between (19) – (18)
Between (49) – (18)
SEN02631-02
Voltage
4.5 – 5.5 V
0.5 – 4.5 V
9