(b)
Turn the ignition switch to "ON" position.
(c)
Select "Engine"/"Read Data"/"Knock Sensor Signal 1".
(d)
Start and run the engine at normal working temperature.
(e)
Road test the vehicle and read the engine speed data on the
scan tool.
Is data normal?
Standard Value: Normal data. Refer to
No
Yes
Step 3
Intermittent Fault. Refer to
.
Step 4
Check the knock sensor.
Knock Sensor
FE02-5083b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect Knock Sensor harness connector EN08.
(c)
Measure knock sensor resistance.
Standard Resistance: >1M Ω at 25°C(77 ºF)
(d)
Connect Knock Sensor harness connector EN08.
Is resistance normal?
No
Replace the knock sensor. Refer to
.
Yes
Step 5
Check sensor terminal No.1 line.
Engine
Control System JL4G15-D
2-723
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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