Note: Each time the ignition switch can not stay at the "ST" location
more than 5s, otherwise it will damage the starter motor.
Note: The scan tool can also be to diagnose. Turn the ignition
switch to the "ST" position to observe the scan tool data: Engine /
data list / "engine speed."
Speed not shown?
No
Yes
Step 7
Check the crankshaft position sensor.
For inspection steps, refer to
Confirm the resistance is the specified value.
No
Replace the crankshaft position sensor. Refer
to
Yes
Step 8
Check the crankshaft position sensor signal circuit.
For inspection steps, refer to
Normal?
No
Repair the circuit fault.
Yes
Step 9
Check ECM power supply circuit.
(a)
Check whether ECM power supply circuit is normal.
(b)
Check whether ECM ground circuit is normal.
No
Repair the faulty part.
Yes
Step 10
Replace ECM.
Engine
Ignition System JL4G18-D
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EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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