No
Replace idle speed control valve. Refer to
Idle Air Control Valve Replacement
Yes
Step 4
Check idle speed control Valve terminal A circuit.
1
3
5
7
8
6
4
2
9
10
11
12
13
23
24
25
26
27
28
29
30
37
51
52
53
54
55
56
57
58
59
60
61
62
63
64
38
39
40
41
42
43
44
45
46
47
48
49
50
31
32
33
34
35
36
14
15
16
17
18
19
20
21
22
ECM Harness Connector EN01
A
B
C
D
Idle Control Valve Harness Connector EN17
FE02-5103b
(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 A and ECM harness
connector EN01 terminal No.22. The standard value
parameter is in the table below.
(e)
Measure resistance between idle speed control valve wiring
harness connector EN17 terminal A 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 A and a reliable ground.
The standard value parameter is in the table below.
Test Items
Standard Value
Resistance Between EN17 (A) and EN01 (22)
Less than 1 Ω
Resistance Between EN17 (A) and a Reliable
Ground
10 kΩ or higher
Voltage Between EN17 (A) and a Reliable
Ground
0 V
Are the values specified values?
No
Repair or replace the wiring harness
connector. Go to step 10
Yes
Step 5
Check idle speed control valve terminal B circuit.
Engine
Control System JL4G18-D
2-183
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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