Komatsu Galeo PC800-8 Shop Manual page 551

40 Troubleshooting
Short circuit in wiring har-
ness
5
Possible causes
(with another wiring har-
and standard
ness)
value in normal
state
6 Defective engine controller
Circuit diagram related to sensor power supply 2 (5 V)
Applicable machines PC800-8: 50001 – 50062
PC850-8: 10001 – 10006
* Connector "PEVA" is not applied to the following machines:
• PC800-8: 55001 and up
• PC850-8: 10007, 55001 and up
PC800, 850-8
Cause Standard value in normal state/Remarks on troubleshooting
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between ENG (female) (37) –
each sensor (female) and between ENG
(female) (47) – each sensor (female)
aPrepare with starting switch OFF, then turn starting switch ON and
carry out troubleshooting.
ENG
Between (37) – (47)
SEN00790-02
Resis-
Min. 1 Mz
tance
Voltage
4.75 – 5.25 V
45