Generac Power Systems GP Series Diagnostic Repair Manual page 22

Section 2 Electronic Engine Control
Operational Analysis—Key ON
Signal to
Brush Assy
Signal and AC
voltage to
CO_MON
16
Figure 2-40. Operational Analysis—Key ON
12 VDC supply to
FP, KSS, FBR,
MPR, MIL, DB1
and SC
12 VDC control to
FP, FBR, MPR,
and R1
ECM ground
control to MPR
Diagnostic Repair Manual