When Starting Switch Is Turned On, Basic Check Items Light Up Or Flash - Komatsu PC130-7 Shop Manual

TROUBLESHOOTING
E-13 When starting switch is turned ON, basic check items light up or flash
Trouble (1) Engine oil level monitor flashes.
• When the starting switch is turned ON, if the engine oil level monitor detects lowering of the engine oil
Related level, it flashes.
information • The input state (ON/OFF) from the engine oil level switch can be checked with the monitoring function.
(Code: 046, Center of lower line)
Low engine oil level
1
(When system is normal)
Defective engine oil level
2 switch
(Internal disconnection)
Possible causes
and standard
Disconnection in wiring
value in normal
harness
state
3 (Disconnection in wiring
harness or defective
contact in connector)
4 Defective monitor panel
Circuit diagram related to engine oil level switch
Trouble (2) Engine oil replacement monitor lights up.
Related • When the starting switch i
information replacement monitor lights. (Set up Machine only)
Engine oil replacement
Possible causes
1 period
and standard
(When system is normal)
value in normal
state
2 Defective monitor panel
PC130-7
Cause Standard value in normal state/Remarks on troubleshooting
Check the engine oil level. If it is low, add new oil.
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
E03 (male)
Between (1) and
chassis ground
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
Wiring harness between P02 (female) (8) and
E03 (female) (1)
aPrepare with starting switch OFF, then turn starting switch ON and car-
ry out troubleshooting.
Between (8) and
chassis ground
s turned ON near the engine oil replacement period, the engine oil
Resistance
Cause Standard value in normal state/Remarks on troubleshooting
It is near the engine oil replacement period. Check the elapsed time
and replace the oil.
If the time before the set engine oil replacement period is longer than 10
hours, the monitor panel is defective (Troubleshooting cannot be carried
out since the defect is in the monitor panel).
Engine oil level
When normal
When low
P02 Engine oil level
When normal
When low
E-13
Resistance
Max. 1 z
Min. 1 Mz
Max. 1 z
Resistance
Voltage
Max. 1 V
20 – 30 V
20-423
(1)