Precaution Monitor Lights Up While Engine Is Running - Komatsu PC200-8M0 Shop Manual

400 Troubleshooting of electrical system (E-mode)
E-5 Precaution monitor lights up while engine is running
E-5 Precaution monitor lights up while engine is running
Failure 1) Engine coolant temperature monitor lights up in white.
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Related information
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Cause
Insufficient warm-up of machine
1
(when system works properly)
Defective engine coolant tempera-
2
ture gauge system
Failure 2) Hydraulic oil temperature monitor lights up in white.
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Related information
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Cause
Insufficient warm-up of machine
1
(when system works properly)
Defective hydraulic oil temperature
2
gauge system
Failure 3) Charge level monitor lights up while engine is running.
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Related information
Cause
1 Defective alternator system
Failure 4) Fuel level monitor lights up in red.
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Related information
Cause
Low fuel level (when system works
1
properly)
2 Defective fuel level gauge system
PC200, 200LC, 220, 220LC-8M0
Signal of engine coolant temperature sensor is input to engine controller and then data is
transmitted to machine monitor through CAN communication system.
Engine coolant temperature can be checked with monitoring function
(Code: 04107 Engine coolant temperature)
If monitor lights up in white, engine coolant temperature may be low (below
approximately 30 °C). Warm up engine.
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Lighting up in white: Engine coolant temperature is low.
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Lighting up in blue: Engine coolant temperature is proper.
If no failure is found by check on cause 1, engine coolant temperature gauge
system may be defective. Perform troubleshooting for "E-8 Engine coolant
temperature gauge does not indicate properly".
Signal of hydraulic oil temperature sensor is input to pump controller and then data is trans-
mitted to machine monitor through CAN communication system.
Hydraulic oil temperature can be checked with monitoring function
(Code: 04401 Hydraulic oil temperature)
If monitor lights up in white, hydraulic oil temperature may be low (below
approximately 20 °C). Warm up engine.
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Lighting up in white: Hydraulic oil temperature is low.
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Lighting up in blue: Hydraulic oil temperature is proper.
If no failure is found by check on cause 1, hydraulic oil temperature gauge sys-
tem may be defective. Perform troubleshooting for "E-9 hydraulic oil tempera-
ture gauge does not indicate properly".
Power generation signal of alternator can be checked with monitoring function.
(Code: 04300 Charge voltage)
Perform troubleshooting for failure code [AB00KE].
Signal voltage of fuel level sensor can be checked with monitoring function.
(Code: 04200 Fuel sensor voltage)
Fuel level may be low. Check it and add fuel if necessary.
If no failure is found by check on cause 1, fuel level gauge system may be
defective. Perform troubleshooting for "E-7 Fuel level gauge does not indicate
properly".
Procedure, measuring location, criteria and remarks
Procedure, measuring location, criteria and remarks
Procedure, measuring location, criteria and remarks
Procedure, measuring location, criteria and remarks
SEN06138-00
21
40-400