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5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
To
B134
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
9
27
26
25
24
23
22
21
20
19
34
33
32
31
30
29
DESCRIPTION
Signal (+)
Crankshaft
position sen-
Signal (−)
sor
Shield
Signal
Rear oxygen
Shield
sensor
Ground
(sensor)
Front oxygen
Signal 1
(A/F) sensor
Signal 2
heater
Rear oxygen sensor heater
signal
Engine cool-
Signal
ant tempera-
Ground
ture sensor
(sensor)
Signal
Air flow sensor
Shield
Ground
Intake air temperature sen-
sor signal
Wastegate control solenoid
valve
Starter switch
A/C switch
Ignition switch
Neutral position switch
Test mode connector
Engine Control Module (ECM) I/O Signal
To
B135
7
6
5
4
3
8
19
18
17
16
15
14
13
12
11
18
27
26
25
24
23
28
35
34
33
32
31
Termi-
Connector
nal
No.
No.
B135
10
B135
22
B135
31
B137
25
B137
31
B136
35
B134
3
B134
2
B135
2
B136
14
B136
35
B136
23
B136
32
B136
31
B136
13
B134
32
B137
8
B137
17
B137
14
B137
9
B137
15
EN(H4DOTC)(diag)-15
To
B136
2
1
6
5
4
3
10
9
8
16
15
14
13
12
11
10
22
21
20
27
26
25
24
23
22
21
30
29
28
35
34
33
32
31
Signal (V)
Ignition SW ON
(engine OFF)
0
0
0
0
0
0
—
—
0 — 13
1.0 — 1.4
0
—
0
0
0.3 — 4.6
0 or 10 — 13
0
ON: 10 — 13
OFF: 0
10 — 13
ON: 0
OFF: 10 —13
10 — 13
ENGINE (DIAGNOSTICS)
To
2
1
7
6
5
9
8
7
17
16
15
14
13
20
19
18
17
25
24
23
30
29
28
31
30
29
Engine ON
(idling)
−7 — +7
0
0
0 — 0.9
0
0
—
—
—
1.0 — 1.4
After engine is warmed-up.
0
After engine is warmed-up.
0.3 — 4.5
0
0
0.3 — 4.6
0 or 13 — 14
0
Cranking: 8 —14
ON: 13 — 14
OFF: 0
13 — 14
ON: 0
OFF: 13 —14
13 — 14
When connected: 0
B137
4
3
2
1
12
11
10
9
8
22
21
20
19
18
28
27
26
EN-01812
Reference
Waveform
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