GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2002
🢒
TrailBlazer - 2WD
🢒
Body and Accessories
🢒
Entertainment
🢒 HVAC Schematics
Figure
1:
Power, Ground, Serial Data, Blower Motor, and Coolant Bypass Valve
Master Electrical Component List
Air Delivery Description and Operation
A/C Compressor Controls and Pressure Sensors
B+ Bus - Underhood Fuse Block
ACCY/RUN/START, RUN, and START Bus Bars
HVAC I, BRAKE, and TBC RUN Fuses
B+ Bus - Rear Fuse Block
HVAC I, BRAKE, and TBC RUN Fuses
LGM/DSM, OH BATT/ONSTAR, RADIO, and HVAC B Fuses
DLC and SP205
G201 - 1 of 2
G101, G103, G106, and G110
G102, G104, G105, and G109
Figure
2:
A/C Compressor Control and Pressure Sensors
Master Electrical Component List
Air Delivery Description and Operation
Actuators
Power, Ground, Serial Data, Blower Motor, and Coolant Bypass Valve
ACCY/RUN and RUN/START Bus Bars
B+ Bus - Underhood Fuse Block
IGN E, TBC IGN1, BACK UP, BTSI, and TRLR B/U Fuses
DLC and SP205
G107 and G108
G101, G103, G106, and G110
Figure
3:
Actuators
Master Electrical Component List
Air Delivery Description and Operation
Rear Mode Controls - Body Type VIN 3
A/C Compressor Controls and Pressure Sensors
ACCY/RUN/START, RUN, and START Bus Bars
HVAC I, BRAKE, and TBC RUN Fuses
HVAC I, BRAKE, and TBC RUN Fuses
G201 - 1 of 2
Figure
4:
Rear Mode Controls - Body Type VIN 3
Master Electrical Component List
Air Delivery Description and Operation
Rear HVAC - Body Type VIN 6
Actuators
ACCY/RUN/START, RUN, and START Bus Bars
HVAC I, BRAKE, and TBC RUN Fuses
G201 - 1 of 2
Figure
5:
Rear HVAC - Body Type VIN 6
Master Electrical Component List
Air Delivery Description and Operation
Rear Mode Controls - Body Type VIN 3
I/P Dimming Supply - 1 of 2
B+ Bus - Rear Fuse Block
LGM/DSM, OH BATT/ONSTAR, RADIO, and HVAC B Fuses
DLC and SP205
G401, G402, and G403
G201 - 1 of 2