GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Power, Ground, and Serial Data, Hybrid Control Module and SGCM


Object Number: 1775418  Size: FS
Master Electrical Component List
Starter/Generator Control Module Description and Operation
Control Module References
Starting Controls - 1 of 2
B+ Bus Bar
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
Ignition Switch - START, RUN, and ACC/RUN/START BUS BARS, IGN A, and CRNK Fuses
Starting - 2 of 2 and Energy Storage
ABS, AUX HTR PMP, ESCM, HCM-B, MBEC1, RTD, STUD 1, STUD 2, TRANS PUMP, and VSES/ECAS Fuses and RT DOOR and SEAT Circuit Breakers
ABS, AUX HTR PMP, ESCM, HCM-B, MBEC1, RTD, STUD 1, STUD 2, TRANS PUMP, and VSES/ECAS Fuses and RT DOOR and SEAT Circuit Breakers
Starting - 2 of 2 and Energy Storage
Starting - 2 of 2 and Energy Storage
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
G103 and G106 - Gas
High Speed GM LAN (HP2)
Power, Ground, DLC and Splice Pack SP205
High Speed GM LAN (HP2)
G120, G121, G122, G310, G311, and G405 (HP2)
Figure 2:

Starting Controls - 1 of 2


Object Number: 1775451  Size: FS
Master Electrical Component List
Powertrain Control Interface Module Description and Operation
Control Module References
Starting - 2 of 2 and Energy Storage
Hybrid Modules Power, Ground, and Serial Data
B+ Bus Bar
Ignition Switch - START, RUN, and ACC/RUN/START BUS BARS, IGN A, and CRNK Fuses
COOL PUMP, HYBRID O2A, HYBRID O2B, IGN B, and PWR MAINT Fuses
Ignition Switch - START, RUN, and ACC/RUN/START BUS BARS, IGN A, and CRNK Fuses
COOL PUMP, HYBRID O2A, HYBRID O2B, IGN B, and PWR MAINT Fuses
Ignition Switch - ACC/RUN and RUN/START BUS BARS and IGN B Fuse
B+ Bus Bar
Ignition Switch - ACC/RUN and RUN/START BUS BARS and IGN B Fuse
COOL PUMP, HYBRID O2A, HYBRID O2B, IGN B, and PWR MAINT Fuses
High Speed GM LAN (HP2)
Gages, Vehicle Speed Sensor, Engine Oil Pressure, and Fuel Level Sensors
Figure 3:

Starting - 2 of 2 and Energy Storage


Object Number: 1861574  Size: FS
Master Electrical Component List
Starter/Generator Description and Operation
Control Module References
Starting Controls - 1 of 2
Battery Supply - 1 of 2
G100 and G102
Hydraulic Motor Power and Ground
120-volt AC Outlets (HP2) - 2 of 2
G120, G121, G122, G310, G311, and G405 (HP2)
Hybrid Modules Power, Ground, and Serial Data
High Speed GM LAN (HP2)