Ecm Power And Ground Circuit Check - Suzuki SX4 Service Manual

1A-194 Engine General Information and Diagnosis:

ECM Power and Ground Circuit Check

Wiring Diagram
WHT
2
GRN
BLK/YEL
WHT
7
8 9
1
15 14 13 12 11
30 28 27 26
29
45 44 43 42 41
59
60 58 57 56
1. Main fuse box
2. Ignition switch
3. Main relay
4. BCM (included in junction block assembly)
5. "IG COIL" fuse
6. ECM
Circuit Description
When the ignition switch is turned ON, the main relay turns ON (the contact point closes) and the main power is
supplied to ECM.
4
11
10
5
3
BLK/YEL
BLK/YEL
12
13
14-1
14-2
15-1
15-2
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
7. Individual circuit fuse box No.1
8. "IGN" fuse
9. "FI" fuse
10. "DOME" fuse
11. DLC
12. MAP sensor (if equipped)
WHT/RED
BLK/WHT
BRN/WHT
BLK/RED BLK/RED
BLK/RED
GRY/RED
RED/BLK
RED/BLU
ORN
GRY/BLU
GRN
BLU
RED
YEL
WHT
BLK
BLU
YEL
RED
GRN
WHT
BLK
GRY
2 1 15 14 13 12 11
17 16 30 28 27 26
29
32 31 45 44 43 42 41
59
47 46 60 58 57 56
13. A/C refrigerant pressure sensor (if equipped with A/C)
14-1. APP sensor (main)
14-2. APP sensor (sub)
15-1. TP sensor (main)
15-2. TP sensor (sub)
6
E01-2
E01-29
C01-58 BLK/ORN
C01-15
BLK
C01-30 BLK
E01-60
E01-31
BLK
12V 5V
E01-1
E01-16
C01-14
C01-53
E01-55
E01-54
C01-55
E01-35
E01-37
E01-52
E01-34
E01-36
E01-51
E01-50
C01-45
C01-44
C01-43
C01-54
C01-40
C01-42
C01-41
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
S7RW0A1104077
2 1
17 16
32 31
47 46
I6RW0D110052-01