Fuel Injector Circuit Check - Suzuki SX4 Service Manual

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Step
11
Sensor power source circuit check
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Turn ON ignition switch, measure each voltage between
"C01-14", "E01-35", "E01-34" and "C01-43" terminal of
ECM connector and vehicle body ground.
Is each voltage 4 – 6 V?
12 Sensor power source circuit check
1) Disconnect connectors from ECM, TP sensor, MAP
sensor, A/C refrigerant pressure sensor (if equipped with
A/C) and APP sensor with ignition switch turned OFF.
2) Measure each resistance between "C01-14", "E01-35",
"E01-34" and "C01-43" terminal of ECM connector and
vehicle body ground.
Is each resistance infinity?

Fuel Injector Circuit Check

Wiring Diagram
GRN
9
8
11
WHT
BLK/YEL
10
1
15
14
13
12
11
30
29
28
27
26
45
44
43
42
41
60
59
58
57
56
1. Main fuse box
2. Main relay
3. ECM
Action
2
BLK/YEL
BLK/YEL
E01
10
9
8
7
6
5
4
3
25
24
23
22
21
20
19
18
40
39 38
37
36
35
34
33
55
54 53
52
51
50
49
48
4. No.1 injector
5. No.2 injector
6. No.3 injector
Engine General Information and Diagnosis:
ECM power and ground
circuit is in good
condition.
Check internal short
circuit of TP sensor,
MAP sensor, A/C
refrigerant pressure
sensor (if equipped with
A/C) and/or APP
sensor.
BLK/WHT
BRN/WHT
BLK/RED
BLK/RED
BLK/RED
BLK/RED
4
BLU/YEL
5
BLU/WHT
6
BLU/RED
7
BLU/ORN
2
1
15
14
13
12
11
17
16
30
29
28
27
26
32 31
45
44
43
42
41
47 46
60
59
58
57
56
7. No.4 injector
8. "IG COIL" fuse
9. Ignition switch
Yes
Go to Step 12.
"GRY/RED", "BRN" and/
or "RED" wire is shorted
to ground circuit.
3
E01-29
C01-58
BLK/ORN
C01-15
BLK
C01-30
BLK
E01-60
E01-31
BLK
5V
12V
E01-1
E01-16
C01-1
C01-2
C01-16
C01-17
C01
10
9
8
7
6
5
4
3
25
24
23
22
21
20
19
18
40
39 38
37
36
35
34
33
55
54 53
52
51
50
49
48
10. "FI" fuse
11. "IGN" fuse
1A-197
No
S7RW0A1104078
2
1
17
16
32 31
47 46
I6RW0D110053-01

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