Engine Warning Light Comes On; Engine Does Not Start; Diagnosis By Malfunction Symptom - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM

[2] DIAGNOSIS BY MALFUNCTION SYMPTOM

(1) Engine Warning Light Comes On

1. Turn the key switch ON and check that the fuel feed pump is operating. If it is not operating, check in accordance
with "6.[2] FUEL SYSTEM INSPECTION PROCEDURE - 5. Check the Fuel Feed Pump".(Refer to page 1-S291)
2. Connect diagnosis tool and read DTC. Refer to pertinent DTC diagnosis guidelines and implement diagnosis.

(2) Engine Does Not Start

Possible causes:
1. Fuel feed pump operation fault
2. Starting assist device (intake air heater)
• Applicable only when the temperature is low: −10 °C (14 °F) or less
• Refer to the workshop manual for the tractor and check the intake air heater, relay and related wiring harness
*Refer to the previous "List of malfunction causes by symptom" for the subsequent details.
3. Engine fault
• Low compression pressure
• Engine internal fault
• Valve timing fault
4. Control system
• Damage to the pulsar gear of the crankshaft position sensor
• Air gap of the crankshaft position sensor is large
• Damage to the pulsar gear of the camshaft position sensor
• SCV operation fault
• Main relay malfunction
5. Engine electrical system
• Battery fault
• Charging system malfunction
• Starter relay malfunction
6. Intake system
• Air heater relay fault
• Intake air heater fault
7. Fuel system
• Fuel quality
• Fuel filter clogging
• Fuel pressure limiter fault
• Fuel line clogging, leak
8. CRS (including the wiring harness)
• Power supply system
• Output system (supply pump, injector and common rail)
• Input system (sensors and switches)
• ECU
9. Others
• Large amount of drag (including the brakes, etc.)
1-S23
COMMON RAIL SYSTEM
9Y1200192CRS0870US0
9Y1200192CRS0871US0
KiSC issued 05, 2012 A