EN(H4SO)(diag)-18
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
Contents
Connector
No.
Terminal
No.
Signal (V)
Note
Ignition SW ON
(engine OFF)
Engine ON
(idling)
Crankshaft
position
sensor
Signal (+)
B134
13
0
–7 — +7
Waveform
Signal (–)
B134
14
0
0
—
Shield
B134
24
0
0
—
Camshaft
position
sensor
Signal (+)
B134
12
0
–7 — +7
Waveform
Signal (–)
B134
22
0
0
—
Shield
B134
24
0
0
—
Electronic
throttle control
Main
B134
18
0.64 — 0.72
Fully opened: 3.96
0.64 — 0.72
(After engine is
warmed up.)
Fully closed: 0.6
Fully opened: 3.96
Sub
B134
28
1.51 — 1.58
Fully opened: 4.17
1.51 — 1.58
(After engine is
warmed up.)
Fully closed: 1.48
Fully opened: 4.17
Power supply
B134
19
5
5
—
Ground
(sensor)
B134
29
0
0
—
Electronic throttle control
motor (+)
B137
5
Duty waveform
Duty waveform
Drive frequency: 500 Hz
Electronic throttle control
motor (–)
B137
4
Duty waveform
Duty waveform
Drive frequency: 500 Hz
Electronic throttle control
motor power supply
B136
1
10 — 13
12 — 14
—
Electronic throttle control
motor relay
B136
21
ON: 0
OFF: 10 — 13
ON: 0
OFF: 12 — 14
When ignition switch is
turned to ON: ON
EN-05288
B134
5
6
7
8
2
1
9
4
3
10
24
22
23
25
11
12
13
14
15
26
27
28
16
17
18
19
20
21
33
34
29
32
30
31
B136
5
6
7
8
2
1
9
4
3
10
24
22
23
25
11
12
13
14
15
26
27
28
16
17
18
19
20
21
33
34
29
32
30
31
35
B135
5
6
7
8
2
1
9
4
3
10
24
22
23
25
11
12
13
14
15
26
27
28
16
17
18
19
20
21
29
30
31
32
33
34
35
B137
5
6
7
8
2
1
9
4
3
10
22
23
11
12
13
14
15
24
25
26
16
17
18
19
20
21
27
28
29
30
31
TO A:
TO B:
TO C:
TO D:
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