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

Primary Blower and Air Delivery Controls (C42) and Vacuum Pump (Diesel)


Object Number: 1565220  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Primary Blower and Air Delivery Controls (C60)
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGN A Fuse
HVAC 1 Fuse
AUX PWR, BLWR, CNSTR VENT SOL, IPC, LTR, REAR FOG LMPS, and STOP LAMP Fuses
I/P Dimming Supply Voltage - 1 of 3 and LED Dimming Supply Voltage
G304
G102
Figure 2:

Primary Blower and Air Delivery Controls (C60)


Object Number: 1565223  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Compressor Controls (C60)
Primary Blower and Air Delivery Controls (C42) and Vacuum Pump (Diesel)
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGN A Fuse
HVAC 1 Fuse
I/P Dimming Supply Voltage - 1 of 3 and LED Dimming Supply Voltage
Primary Blower and Air Delivery Controls (C42) and Vacuum Pump (Diesel)
Compressor Controls (C60)
AUX PWR, BLWR, CNSTR VENT SOL, IPC, LTR, REAR FOG LMPS, and STOP LAMP Fuses
G304
G102
Figure 3:

Compressor Controls (C60)


Object Number: 1565224  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
Control Module References
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Primary Blower and Air Delivery Controls (C60)
B+ Bus - Underhood Fuse Block - Gas
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGN B Fuse
AIRBAG, IGN E, ISRVM, SPARE and TBC IGN 1 Fuses
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGN A Fuse
Primary Blower and Air Delivery Controls (C42) and Vacuum Pump (Diesel)
Primary Blower and Air Delivery Controls (C60)
G102
Figure 4:

Rear HVAC with Rear Auxiliary Controls (C69) 1 of 3


Object Number: 1565226  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Compressor Controls (C60)
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGN A Fuse
HVAC 1 Fuse
Rear HVAC with Rear Auxiliary Controls (C69) - 3 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 3 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
I/P Dimming Supply Voltage - 3 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Figure 5:

Rear HVAC with Rear Auxiliary Controls (C69) 2 of 3


Object Number: 1565227  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Rear HVAC with Rear Auxiliary Controls (C69) - 3 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
I/P Dimming Supply Voltage - 3 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 3 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 3 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 3 of 3
G347 - 3 of 3
Figure 6:

Rear HVAC with Rear Auxiliary Controls (C69) 3 of 3


Object Number: 1565228  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Rear HVAC w/o Rear Auxiliary Controls (C69) - 1 of 2
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
B+ Bus - Body Fuse Block
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGN A Fuse
HVAC 1 Fuse
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 1 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
Rear HVAC with Rear Auxiliary Controls (C69) - 2 of 3
G401 - Passenger/Cargo
Figure 7:

Rear HVAC w/o Rear Auxiliary Controls (C69) 1 of 2


Object Number: 1565229  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Rear HVAC w/o Rear Auxiliary Controls (C69) - 2 of 2
Rear HVAC with Rear Auxiliary Controls (C69) - 3 of 3
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGN A Fuse
HVAC 1 Fuse
Rear HVAC w/o Rear Auxiliary Controls (C69) - 2 of 2
Rear HVAC w/o Rear Auxiliary Controls (C69) - 2 of 2
I/P Dimming Supply Voltage - 3 of 3
Rear HVAC w/o Rear Auxiliary Controls (C69) - 2 of 2
Rear HVAC w/o Rear Auxiliary Controls (C69) - 2 of 2
Rear HVAC w/o Rear Auxiliary Controls (C69) - 2 of 2
G347 - 3 of 3
Figure 8:

Rear HVAC w/o Rear Auxiliary Controls (C69) 2 of 2


Object Number: 1565231  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Rear HVAC (C36 w/o C69)
Rear HVAC w/o Rear Auxiliary Controls (C69) - 1 of 2
B+ Bus - Body Fuse Block
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGN A Fuse
HVAC 1 Fuse
Rear HVAC w/o Rear Auxiliary Controls (C69) - 1 of 2
Rear HVAC w/o Rear Auxiliary Controls (C69) - 1 of 2
Rear HVAC w/o Rear Auxiliary Controls (C69) - 1 of 2
Rear HVAC w/o Rear Auxiliary Controls (C69) - 1 of 2
Rear HVAC w/o Rear Auxiliary Controls (C69) - 1 of 2
G401 - Passenger/Cargo
Figure 9:

Rear HVAC (C36 w/o C69)


Object Number: 1565233  Size: FS
Master Electrical Component List
Air Delivery Description and Operation
Control Module References
Coolant Heater (K08)
Rear HVAC w/o Rear Auxiliary Controls (C69) - 2 of 2
B+ Bus - Body Fuse Block
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGN A Fuse
HVAC 1 Fuse
I/P Dimming Supply Voltage - 2 of 3
G401 - Passenger/Cargo
G347 - 2 of 3
Figure 10:

Coolant Heater (K08)


Object Number: 1565237  Size: FS
Master Electrical Component List
Air Temperature Description and Operation
Control Module References
Rear HVAC (C36 w/o C69)
B+ Bus - Underhood Fuse Block - Diesel
ABS/VSES, FOH/ECM/TCM BATT, PCM BATT, and TRLR Fuses
G400
High Speed GMLAN and Splice Pack SP250 - Diesel