Fuel Injector Circuit Check - Suzuki SX4 Service Manual

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