GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 G3 🢒 HVAC 🢒 HVAC - Automatic 🢒 HVAC Schematics
Figure 1:

HVAC Control, Intake, Air Mix, Mode Motors
Object Number: 1756817 Size: FS
Master Electrical Component List (Notchback)
Automatic HVAC Description and Operation
Control Module References
Blower Control
ACC/IG 1 Fuse, Ignition Switch, B/UP LAMP, ELEC MIRROR Fuses
Defogger Schematics
Manual Transaxle Schematics
Wiper System Schematics
G203
Figure 2:

Blower Control
Object Number: 1756820 Size: FS
Master Electrical Component List (Notchback)
Automatic HVAC Description and Operation
Control Module References
Compressor Control Sirius D42
HVAC Control, Intake, Air Mix, Mode Motors
ACC/IG 1 Fuse, Ignition Switch, B/UP LAMP, ELEC MIRROR Fuses
ACC/IG 1 Fuse, Ignition Switch, B/UP LAMP, ELEC MIRROR Fuses
G203
Figure 3:

Compressor Control Sirius D42
Object Number: 1756821 Size: FS
Master Electrical Component List (Notchback)
Automatic HVAC Description and Operation
Control Module References
Compressor Control MR140, HV240
Blower Control
FAN LOW, FAN HI, A/C COMP, P/WINDOW Relays and Fuses
MAIN, FAN, A/C RELAYS, EMS1, EMS2 Fuses - SIRIUS D42, MT34
Figure 4:

Compressor Control MR140, HV240
Object Number: 1756822 Size: FS
Master Electrical Component List Notchback
Automatic HVAC Description and Operation
Control Module References
HVAC Control, HVAC Sensors
Compressor Control Sirius D42
FAN LOW, FAN HI, A/C COMP, P/WINDOW Relays and Fuses
SDM, EMS 1, EMS 2 Fuses
G101, G103, G104
Figure 5:

HVAC Control, HVAC Sensors
Object Number: 1756828 Size: FS
Master Electrical Component List Notchback
Automatic HVAC Description and Operation
Control Module References
Compressor Control MR140, HV240
G201 - 1 of 3