HVAC Schematics. Buick LaCrosse 2005

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2005 🢒 LaCrosse 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 HVAC Schematics

Figure 1:	Power, Ground, and Blower Controls Master Electrical Component List Air Delivery Description and Operation Control Module References Compressor Controls and Serial Data (L26) Fuse Block - Underhood BATT MAIN 1 Fuse, Fuse Block - I/P PK LAMPS, DISPLAYS, CHMSL/BKUP, INT LIGHT, RFA/MOD, RADIO/AMP, ONSTAR/ALDL, HVAC, and CANISTER Fuses and PK LP Relay Fuse Block - Underhood ABS, TRANS SOL, PCM, SIR, and DISPLAY Fuses, CRANK Relay, and Fuse Block - I/P CRUISE SW Fuse Fuse Block - Underhood B+ Bus I/P, Console, and Driver Door Lighting G202 G200
Figure 2:	Compressor Controls and Serial Data (L26) Master Electrical Component List Air Delivery Description and Operation Control Module References Compressor Controls and Serial Data (LY7) Power, Ground, and Blower Controls Fuse Block - Underhood B+ Bus L26 G115 (L26)
Figure 3:	Compressor Controls and Serial Data (LY7) Master Electrical Component List Air Delivery Description and Operation Control Module References Air Temperature and Sunload Sensors Compressor Controls and Serial Data (L26) Fuse Block - Underhood B+ Bus LY7 5 Volt and Low Reference, Page 1 of 2 5 Volt and Low Reference, Page 1 of 2 G115 (LY7)
Figure 4:	Air Temperature and Sunload Sensors Master Electrical Component List Air Temperature Description and Operation Control Module References Air Delivery/Temperature Controls Compressor Controls and Serial Data (LY7) Headlights/Daytime Running Lights (DRL) Schematics Fuse Block - Underhood ABS, TRANS SOL, PCM, SIR, and DISPLAY Fuses, CRANK Relay, and Fuse Block - I/P CRUISE SW Fuse G202
Figure 5:	Air Delivery/Temperature Controls Master Electrical Component List Air Temperature Description and Operation Control Module References Air Temperature and Sunload Sensors