Mobile Generator ECM Background Information
wc_tx000713gb.fm 39
4.8 ECM Circuit Boards
Note: Your machine’s ECM board may differ slightly from the one
pictured.
Ref. Description
a AC board
b Engine board
cCrank relay
d Fuel relay
e Preheat relay
P1 Power and engine sensing
P2 Power to crank, fuel and fault prealarm closures
P3 AC Amps connection to current transformers
P4 AC Volts connection to voltage selector switch
a
b
wc_gr002924
4
8
12
11
10
9
8
7
1
2
3
2
5
6
3
1
4
4
5
6
7
3
6
2
5
1
4
3
2
1
121110 9 87
65432
1
121110 9 87
65432
1
654
12
3
654
12
3
43
12
43
1
2
8765
432
1
8765
432
1
P3
P1
P2
P4
a
c
e
d
b
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