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

Blower Controls (C42)


Object Number: 755712  Size: FS
Master Electrical Component List
Air Temperature Description and Operation 2.2L
Blower Controls - C60
B+ Bus Bar
G104 and G117
Ign ACC, RUN and RAP Bus Bar
Figure 2:

Blower Controls (C60)


Object Number: 755714  Size: FS
Master Electrical Component List
Air Temperature Description and Operation 4.3L
Compressor Controls - 2.2L
Blower Controls - C42
B+ Bus Bar
G104 and G117
Ign ACC, RUN and RAP Bus Bar
Compressor Controls - 2.2L
Compressor Controls - 4.3L
Figure 3:

Compressor Controls - 2.2L


Object Number: 755715  Size: FS
Master Electrical Component List
Air Temperature Description and Operation 2.2L
Compressor Controls - 4.3L
Blower Controls - C60
B+ Bus Bar
IGN E Fuse and A/C Compressor Clutch, Rear Window Defogger Relays
G102 - Except Export
G102 - Except Export
Blower Controls - C60
Figure 4:

Compressor Controls - 4.3L


Object Number: 884299  Size: FS
Master Electrical Component List
Air Temperature Description and Operation 4.3L
Air Delivery/Temperature Controls - C42
Compressor Controls - 2.2L
B+ Bus Bar
IGN E Fuse and A/C Compressor Clutch, Rear Window Defogger Relays
G102 - Except Export
G103 and G105 - 4.3L
Blower Controls - C60
Figure 5:

Air Delivery/Temperature Controls (C42)


Object Number: 886340  Size: FS
Master Electrical Component List
Air Temperature Description and Operation 2.2L
Air Delivery/Temperature Controls - C60
Compressor Controls - 4.3L
ILLUM, STG WHL ILLUM, and PARK LP Fuses
Ign ACC, RUN and RAP Bus Bar
ILLUM Power - Pickup Except Crew Cab
G203 and G204 - Pickup
G203 and G204 - Pickup
G200, G201, G207, and G300- Pickup and Crew Cab
Figure 6:

Air Delivery/Temperature Controls (C60)


Object Number: 886382  Size: FS
Master Electrical Component List
Air Temperature Description and Operation 2.2L
Air Delivery/Temperature Controls - C42
ILLUM, STG WHL ILLUM, and PARK LP Fuses
ILLUM Power - Utility
Ign ACC, RUN and RAP Bus Bar
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Utility w/Manual A/C
HVAC I Fuse
HVAC I Fuse
G200, G201 and G207 - Utility