Generac Power Systems GP Series Diagnostic Repair Manual page 18

Section 2 Electronic Engine Control
Wire View
NO
1
Power Supply 2
3
4
5
Ground
6
7
8
9
10
11
12
13
Analog Input
14
15
16
17
18
19
20
Frequency Input
21
22
23
24
Digital Input
25
26
27
12
Non-wire Insertion View
Figure 2-36. Engine Control Module (ECM)
PIN FUNCTION
1J Battery
1K Driver
3K Sensor
4K Sensor
1L Driver
4L Battery
3M Ignition
2B No Connection
3B Throttle Position Input
2C Manifold Air Pressure Input
3C No Connection
Automatic Voltage
3D
Regulator Load - 1
Automatic Voltage
3G
Regulator Load - 2
3F No Connection
3E No Connection
2G Intake Air Temperature
2J No Connection
4J Oxygen Sensor Input
Engine Head Temperature
2K
Input
1C Crankshaft Position +
1D Crankshaft Position -
4C Oil Pressure Switch
4D No Connection
4H Engine Start Switch
4F Ignition Switch
4G No Connection
4E Carbon Monoxide Switch
NO
28
29
30
31
Digital Output 32
33
34
35
36
37
38
39
Actuator Output
40
41
42
43
44
45
Communication
46
015017
PIN FUNCTION
2D Main Power Relay
2E Starter Relay
Oxygen Sensor Heater
2F
3H Fuel Injector 1
2H Fuel Injector 2
2L Malfunction Indicator Lamp
3L Fuel Pump
1M Ignition Coil 2
4M Ignition Coil 1
Electronic Throttle Control
1F
Coil 1
Electronic Throttle Control
1E
Coil 1
Electronic Throttle Control
1G
Coil 2
Electronic Throttle Control
1H
Coil 2
2A No Connection
3A No Connection
1B No Connection
1A No Connection
Controller Area Network -
4A
High
Controller Area Network -
4B
Low
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