Yes
Step 12
Check valve timing system.
(a)
Refer to the "Engine Mechanical System" in the
No
Adjust the valve timing. Go to step 17
Yes
Step 13
Check the fuel pressure.
(a)
No
Check fuel system: fuel pump, fuel filter, fuel
pipe circuit and fuel pressure regulator. Go to
step 17
Yes
Step 14
Check whether the data in the data stream table is normal.
(a)
Check intake air pressure sensor data.
(b)
Check engine coolant temperature sensor data.
(c)
Check throttle position sensor.
Are these components normal?
No
Replace the damaged components. Go to
step 17
Yes
Step 15
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 16
Replace ECM.
Next
Step 17
Use scan tool to confirm whether the DTC code is stored again.
(a)
Connect scan tool to the datalink connector.
(b)
Turn the ignition switch to "ON" position.
(c)
Clear DTC code.
(d)
Start and run the engine at idle speed to warm up the engine
for at least 5 min.
(e)
Road test the vehicle for at least 10 min.
(f)
Read control system DTC code again to confirm that the
system has no DTC code.
Engine
Control System JL4G18-D
2-151
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
Page 4: ......
Page 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Page 1164: ......
Page 2008: ......