Komatsu Galeo PC138US-8 Shop Manual page 566

40 Troubleshooting
Short circuit in wiring har-
ness
5
(With another wiring har-
Possible causes
ness)
and standard
value in normal
state
6 Defective engine controller
Circuit diagram related
PC138US, USLC-8
Causes
a Prepare with starting switch OFF, then carry out troubleshoot-
Wiring harness between CE01 (female) (36)
– PFUEL (female) (1) and
wiring harness between CE01 (female) (29)
– PFUEL (female) (2)
Wiring harness between CE01 (female) (36)
– PFUEL (female) (1) and
wiring harness between CE01 (female) (48)
– PFUEL (female) (3)
Wiring harness between CE01 (female) (29)
– PFUEL (female) (2) and
wiring harness between CE01 (female) (48)
– PFUEL (female) (3)
a Prepare with starting switch OFF, then turn starting switch ON
Standard value in normal state/Remarks on troubleshooting
ing without turning starting switch ON.
or start engine and carry out troubleshooting.
CE01
Between (36) – (48)
Between (29) – (48)
SEN02464-01
Resis-
Min.1 Mz
tance
Resis-
Min.1 Mz
tance
Resis-
Min.1 Mz
tance
Voltage
4.75 – 5.25 V
0.25 – 4.6 V
15