Suzuki SWIFT RS415 2017, Service Manual

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Engine General Information and Diagnosis: 1A-177
ECM Power and Ground Circuit Check
S4RS0A1104066
Wiring Diagram
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.
C37-4 to E23-1/16 EGR valve (stepping motor No.1 coil) 20 – 31
:
—
C37-29 to E23-1/16 EVAP canister purge valve 28 – 35
:
—
C37-2 to E23-1/16 No.2 fuel injector 10.8 – 18.2
:
—
C37-3 to E23-1/16 EGR valve (stepping motor No.2 coil)
20 – 31
:
— C37-18 to E23-1/16 EGR valve (stepping motor No.4 coil)
C37-19 to E23-1/16 EGR valve (stepping motor No.3 coil)
C37-46 to E23-29 Heater of HO2S-1 2 – 11
:
—
C37-1 to E23-1/16 No.1 fuel injector 10.8 – 18.2
:
—
E23-47 to E23-1/16 A/C compressor relay 160 – 240
:
—
C37-60 to C37-59 Oil control valve (for M15 engine model) 6 – 15
:
—
E23-45 to E23-1/16 Throttle actuator control relay (for AMT model) 160 – 240
:
—
Terminals Circuit Standard resistance Condition
E23 C37
3 4
18 19
5 6 7 10 11
17 20
47 46 49 50 51
21 22
52
16 25
9
24
14
29
55 57 54 53 59 60 58
2
26 27 28
15
30
56 48
32 31 34 35 36 37 40 42 39 38 44 45 43 41 33
1 12 13
23
8 3 4
18 19
5 6 7 10 11
17 20
47 46 49 50 51
21 22
52
16 25
9
24
14
29
55 57 54 53 59 60 58
2
26 27 28
15
30
56 48
32 31 34 35 36 37 40 42 39 38 44 45 43 41 33
1 12 13
23
8
BLK/WHT
BLK/RED BLK/RED
BLK/RED
BLK/YEL BLK/YEL
BLK/YEL
GRN
BRN/WHT
12V 5V
2
1
3
12
13
14
4
5
6
E23-29
E23-1
E23-60
E23-16
9 8
7
10
11
WHT
WHT/RED
E23-2
C37-58
C37-15
C37-30
BLK/ORN
BLK
BLK
WHT
GRY/RED
GRY/BLU
RED/BLK
ORN
C37-14
C37-54
C37-53
C37-55
E23-54 ORN
RED E23-55
I4RS0A110099-
1. Main fuse box 5. “IG COIL” fuse 9. “FI” fuse 13. MAP sensor
2. Ignition switch 6. ECM 10. “RADIO” fuse 14. A/C refrigerant pressure sensor
3. Main relay 7. Relay box 11. DLC
4. BCM (included in junction block assembly) 8. “IG ACC” fuse 12. TP sensor