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2-186
Control System JL4G18-D
Idle Control Valve Harness Connector EN17
D
ECM Harness Connector EN01
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60
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15
Yes
Step 8
Check ECM power supply circuit.
Yes
Step 9
Replace ECM.
Next
Use scan tool to confirm whether the DTC code is stored again.
Step 10
EC718/EC718RV EC715/EC715RV 10/2009
C
B
A
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8
7
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1
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FE02-5106b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect idle speed control valve wiring harness connector
EN17.
(c)
Disconnect ECM harness connector EN01.
(d)
Measure resistance between idle speed control valve wiring
harness connector EN17 terminal D and ECM harness
connector EN01 terminal No.36. The standard value
parameter is in the table below.
(e)
Measure resistance between idle speed control valve wiring
harness connector EN17 terminal D and a reliable ground.
The standard value parameter is in the table below.
(f)
Measure voltage between idle speed control valve wiring
harness connector EN17 terminal D and a reliable ground.
The standard value parameter is in the table below.
Test Items
Resistance Between EN17 (D) and EN01
(36)
Resistance Between EN17 (D) and a
Reliable Ground
Voltage Between EN17 (D) and a Reliable
Ground
Are the values specified values?
Repair or replace the wiring harness
No
connector. Go to step 10
(a)
Check whether ECM power supply circuit is normal.
(b)
Check whether ECM ground circuit is normal.
Repair the faulty part.
No
(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.
Engine
Standard Value
Less than 1 Ω
10 kΩ or higher
0 V
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