Ecm Circuit Diagram - Yamaha GX1800A Service Manual

ECM circuit diagram

1. Rectifier
2. Stator
regulator
coil
5. Fuse (3 A)
7. Fuse
6. Engine start switch
(30 A)
8. Starter relay
10. Battery
14. Intake air pressure sensor
16. Intake air temperature sensor
17. Engine temperature sensor
20. Slant detection switch
24. Engine shut-off switch
25. APS
4. Main relay
3. Fuse (20 A)
9. Remote
control
receiver
11. Starter motor
12. Pickup coil
13. Cam position sensor
15. Reverse sensor
18. Thermo sensor
19. Steering sensor
21. Knock sensor
22. Oil pressure switch
23. Thermo switch
a. 5 V
26. APS 1
b. Ground
a. 5 V
27. APS 2
b. Ground
7
27
20
21
14
38
8
26
3
16
18
46. ECM
15
23
13
25
17
5
40
1
79
64
72
49
36
34
50
37
35
6
Technical tips
28. Fuel injector #1
58
29. Fuel injector #2
59
30. Fuel injector #3
84
31. Fuel injector #4
83
32. Ignition coil #1
85
33. Ignition coil #2
86
34. Ignition coil #3
61
35. Ignition coil #4
60
36. Fuel pump module
81
37. Fuel pump relay
39. Dual analog
47
38. (YDIS)
meter
39
40. Fuse (10 A)
45
80
41. ETV relay
42. ETV
78
52
43. ETV motor
62
70
a. 5 V
44
42
43
45. TPS 2
b. Ground
41
46
67
44. TPS 1