Komatsu Galeo BR380JG-1E0 Shop Manual page 705

40 Troubleshooting
Disconnection in wiring
harness (Disconnec-
tion in wiring harness
3 or defective contact in
Possible
connector)
causes and
(A: When optional
standard value
equipment is installed)
in normal state
4 Defective controller
BR380JG-1E0
Cause
a Prepare with starting switch OFF, then carry out troubleshooting without
turning starting switch ON.
Wiring harness between B28 (6) – A06 (6) –
B92D (1) – B91D (1) – A36 (female) (6)
Wiring harness between A36 (female) (5) – B92B
(1) – B91B (1) – A36 (female) (4)
Wiring harness between A36 (female) (3) – B92A
(1) – B91A (1) – A36 (female) (2)
Wiring harness between A36 (female) (1) –
B91C (1) – B92C (1) – A08 (4) – A04 (5) – A10A
(9) – B74B (1) /AB93F (1) – B75B (1) / AB94F
(1) – A10A (male) (11)
AWiring harness between A10AB (female) (11)
– B91J (1) – B92J (1) – A10AA (male) (11)
Wiring harness between A10A (female) (11) –
A34 (female) (11)
Wiring harness between A34 (female) (2) – B91E
(1) – B92E (1) – A34 (female) (3)
Wiring harness between A34 (female) (4) – A10B –
A04 (3) – B75A (1) – B74A (1) – R23 (female) (3)
AWiring harness between A34 (female) (4) –
A10B (4) – A37 (1) – B94G (1) – B93G (1) –
B94H (1) – B93H (1) – A38 (male) (1)
AWiring harness between A38 (male) (2) – A37
(2) – A10B (male) (6)
Wiring harness between R23 (female) (5) – C01
(female) (24)
Wiring harness between R28 (10) – A04 (9) –
S24 – A04 (7) – R23 (female) (1)
Wiring harness between R23 (female) (2) –
chassis ground
Wiring harness between A36 (male) (6) – A36
(male) (5)
Wiring harness between A36 (male) (4) – A36
(male) (3)
Wiring harness between A36 (male) (2) – A36
(male) (1)
Wiring harness between A34 (male) (1) – A36
(male) (2)
Wiring harness between A34 (male) (3) – A34
(male) (4)
Wiring harness between A10B (male) (4) – A10B
(male) (6)
AWiring harness between A38 (female) (1) –
A38 (female) (2)
a Prepare with starting switch OFF (Check that all the emergency stop
switches have cancelled), then turn starting switch ON and carry out
troubleshooting.
Between (24) – chassis ground
Standard value in normal state/Remarks on troubleshooting
C01
SEN02095-00
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 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 Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Voltage
20 – 30 V
17