Precaution Lights Up While Engine Is Running - Komatsu PC210-8 Shop Manual

UEN00244-02
E-7 Precaution lights up while engine is running
Trouble (1) Charge level monitor lights up red.
Related infor-
• Signal voltage of alternator can be checked with monitoring function.
mation
(Code: 04300 Charge voltage)
Defective generation by
1 alternator (when system is
normal)
Disconnection in wiring har-
ness (Disconnection in wiring
2
or defective contact in con-
Possible causes
nector)
and standard
value in normal
state
Ground fault in wiring har-
3 ness (Short circuit with GND
circuit)
4 Defective machine monitor
22
Cause
a Prepare with starting switch OFF, then start engine and carry out
Between (1) – chas-
a Prepare with starting switch OFF, then carry out troubleshooting
Wiring harness between CM01 (female)
(11) – J02 – E12 (female) (1)
a Prepare with starting switch OFF, then carry out troubleshooting
Wiring harness between CM01 (female)
(11) – J02 – E12 (female) (1), – circuit
branch end
a Prepare with starting switch OFF, then start engine and carry out
Between (11) –
chassis ground
Standard value in normal state/Remarks on troubleshooting
troubleshooting.
E12 (male) Engine speed
Middle or higher
sis ground
without turning starting switch ON.
without turning starting switch ON.
troubleshooting.
CM02
40 Troubleshooting
Voltage
27.5 – 29.5 V
Resist-
ance
Resist-
ance
Engine Voltage
Running Min. 7.8 V
PC210, 230, 240-8
1
Max. 1 z
Min. 1 Mz