Kubota 07-CR-E5 Manual page 232

07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
5. Measure the Engine ECU Terminal Voltage
1. Place the key switch in the OFF position, and unplug the engine
ECU wiring harness connector 1 (1) from the socket.
2. Place the key switch in the ON position, and measure the
voltage between engine ECU terminals E13 and E72.
Service
Approx. 5 V
specification
OK Go to "6. Check the connectors".
NG Replace the engine ECU.
(1) Engine ECU Wiring Harness
Connector 1 (Engine Side)
6. Check the Connectors
1. Check engine ECU terminals E13, E52 and E72 (at the engine
ECU side) and the connectors (at the wiring harness side) for
incorrect connection, inappropriate fitting, poor contact.
Service Must be free from incorrect connection, inappropriate fitting,
specification poor contact.
OK Go to "7. Check the wiring harness".
NG Repair or replace.
7. Check the Wiring Harness
1. Check the wiring harness being connected to engine ECU
terminals E13, E52 and E72 for a short or an open circuit.
Service
Must be free from shorts and open circuit.
specification
OK Go to "8. Check the Crankshaft Position Sensor".
NG Replace.
8. Check the Crankshaft Position Sensor
1. Disconnect the sensor and check the following items.
• Is there a large amount of magnetic foreign material
adhering to the sensor surface?
• Are there interference marks of the pulsar and the sensor?
• Are there any pulsar gear abnormalities?
OK Replace the engine ECU and test.
NG Replace the sensor.
(1) Crankshaft Position Sensor
(NE Sensor)
1-S194
COMMON RAIL SYSTEM
(2) Engine ECU Wiring Harness
Connector 2 (Machine Side)
9Y3200007CRS0271US0
9Y3200007CRS0272US0
9Y3200007CRS0273US0
9Y3200007CRS0274US0
KiSC issued 03, 2022 A