Komatsu ecot3 PC300LC-8 Shop Manual page 748

SEN02632-02
Disconnection in wiring har-
ness
8 (Disconnection in wiring or
defective contact in connec-
tor)
Possible causes
and standard
value in normal
state
Ground fault in wiring har-
ness
9
(Short circuit with GND cir-
cuit)
Hot short (Short circuit with
10
24V circuit) in wiring harness
8
Cause Standard value in normal state/Remarks on troubleshooting
a
Wiring harness between F01-17 – H15
(female) (1)
Wiring harness between H15 (female) (4) –
J01 – R06 (female) (6)
Wiring harness between R06 (female) (3) –
M17 (female) (1)
Wiring harness between F01-3 outlet – S14
(female) (1)
Wiring harness between S14 (female) (3) –
R06 (female) (1)
Wiring harness between R06 (female) (3) –
R07 (female) (4)
Wiring harness between R06 (female) (2) –
J04 – chassis ground
a
Wiring harness between battery relay termi-
nal B (R04) – F05 – F01-16D and chassis
ground
Wiring harness between F01-17 – H15
(female) (1) and chassis ground
Wiring harness between H15 (female) (4) –
J01 – R06 (female) (6) and chassis ground
Wiring harness between R06 (female) (3) –
M17 (female) (1) and chassis ground
Wiring harness between F01-3 – S14
(female) (1) and chassis ground
Wiring harness between S14 (female) (3) –
R06 (female) (1) and chassis ground
Wiring harness between R07 (female) (2) –
CM01 (female) (8) and chassis ground
a
Wiring harness between CM01 (female) (11)
– J02 – M17 (female) (2), – D01 (female) (6),
– alternator terminal R and chassis ground
Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Prepare with starting switch OFF, then turn starting switch ON
and carry out troubleshooting.
40 Troubleshooting
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Voltage Max. 1 V
PC300, 350-8