Yes
Step 2
Check EO27 terminal B.
1
17
33
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A
B
C
D
E
F
G
H
ECM Harness Connector EO01
Electronic Throttle Body Harness Connector EO27
FE02-5236b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect ETC harness connector EO27.
(c)
Disconnect ECM harness connector EO01.
(d)
Measure resistance between EO27 terminal B and a reliable
ground.
(e)
Measure voltage between EO27 terminal B and a reliable
ground.
(f)
Test continuity between EO27 terminal B and EO01 terminal
No.39.
Results:
Test Items
Standard Value
Resistance Between EO27 (B) and A Reliable
Ground
10 kΩ or higher
Voltage Between EO27 (B) and A Reliable
Ground
0 V
EO27 (B) and EO01 (39) Continuity
Less than 1 Ω
Is the value specified value?
No
Circuit malfunction, repair the circuit.
Yes
Step 3
Check terminal B voltage output signal.
(a)
Connect ETC harness connector EO27.
(b)
Connect ECM harness connector EO01.
(c)
Measure ETC harness connector EO27 terminal B output
voltage.
Standard Value: Refer to
.
Is the output voltage value specified value?
No
Replace the electronic throttle body (ETC).
Refer to
.
Yes
Step 4
Check ECM power supply circuit and ground circuit.
(a)
Check ECM Power Supply Circuit and ground circuit. Refer to
ECM power and ground circuits normal?
No
Repair power and ground fault circuits.
Engine
Control System JL4G15-D
2-669
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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