Komatsu Galeo PC800-8 Shop Manual page 736

SEN00793-02
Disconnection in wiring
harness (Disconnection in
6
wiring or defective contact
in connector)
Possible causes
and standard
value in normal
state
Ground fault in wiring har-
7 ness (Contact with GND
circuit)
10
Cause Standard value in normalcy and references for troubleshooting
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between H06 (female) (5) – J03
FB1 (20) – CE02 (female) (39)
Wiring harness between CE02 (female) (40)
R18 (female) (1)
Wiring harness between CE02 (female) (42)
R18 (female) (2)
Wiring harness between B21 – FB1 (6) – R18
(female) (3)
Wiring harness between R18 (female) (5) – J02
(10) (5) – air heater relay terminal R17
Wiring harness between air heater relay termi-
nal R16 – air heater terminal
Wiring harness between battery relay terminal
M – air heater relay terminal R15
Wiring harness between air heater relay termi-
nal (–) – engine ground
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between H06 (female) (5) – J03
– FB1–20 – CE02 (female) (39) and chassis
ground
Wiring harness between CE02 (female) (40) –
R18 (female) (1) and chassis ground
Wiring harness between CE02 (female) (42) –
R18 (female) (2) and chassis ground
Wiring harness between B21 – FB1–6 – R18
(female) (3) and chassis ground
Wiring harness between R18 (female) (5) – J02
(10), (5) – air heater relay terminal R17 and
chassis ground
Wiring harness between air heater relay termi-
nal R16 – air heater terminal and chassis
ground
Wiring harness between battery relay terminal
M – air heater relay terminal R15 and chassis
ground
40 Troubleshooting
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
PC800, 850-8