While Engine Is Running, Caution Items Flash - Komatsu PC130-7 Shop Manual

TROUBLESHOOTING
E-14 While engine is running, caution items flash
Trouble (1) Battery charge level monitor flashes.
• While the engine is running, if the battery charge level monitor detects lowering of the charge voltage,
it flashes.
Related
• The generation state (Voltage) of the alternator and the input state (ON/OFF) of the generation signal
information
can be checked with the monitoring function.
(Code: 043, by 10 mV, left of lower line)
Defective alternator
1
(Defective charge)
Disconnection in wiring
harness
2 (Disconnection in wiring
harness or defective
Possible causes
contact in connector)
and standard
value in normal
state
Short circuit with chassis
ground in wiring harness
3
(Contact with ground
circuit)
4 Defective monitor panel
20-424
(1)
Cause Standard value in normal state/Remarks on troubleshooting
aPrepare with starting switch OFF, then start engine and carry out trou-
bleshooting.
E08 (female)
Between (1) and
chassis ground
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
Wiring harness between P02 (female) (11) and
J02 and E08 (male) (1)
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
Between P02 (female) (11) – J02 – E08 (male)
(1) or A27 (female) (2) or D01 – J01 – D01
(female) (1) or H15 (female) (2) or A21 (BR)
wiring harness and chassis ground
aPrepare with starting switch OFF, then turn starting switch ON and car-
ry out troubleshooting.
E08 (female)
Between (1) and
chassis ground
Engine speed
Above medium
(half) speed
Resistance
Resistance
Engine speed
Above medium
(half) speed
E-14
Voltage
20 – 30 V
Max. 1 z
Min. 1 Mz
Voltage
20 – 30 V
PC130-7