HVAC Schematics. Buick Regal 2003

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2003 🢒 Regal 🢒 Body and Accessories 🢒 Wiring Systems 🢒 HVAC Schematics

Figure 1:	Blower Controls Master Electrical Component List Air Delivery Description and Operation Compressor Controls Fuse Block-Underhood Batt 1 Fuse, Fuse Block-I/P RADIO, HVAC, RFA CLUSTER, DATA LINK, BCM PWR, INADV POWER BUS, RADIO PREM SOUND, and CIGAR LTR Fuses Fuse Block-I/P LOW BLOWER, CRUISE, and HVAC Fuses Fuse Block-Underhood Batt 2 Fuse, Fuse Block-I/P HIGH BLOWER, HAZARD, STOP LAMPS, DOOR LOCKS, and POWER MIRRORS Fuses Fuse Block-Underhood Batt 1 Fuse, Fuse Block-I/P RADIO, HVAC, RFA CLUSTER, DATA LINK, BCM PWR, INADV POWER BUS, RADIO PREM SOUND, and CIGAR LTR Fuses Fuse Block-I/P LOW BLOWER, CRUISE, and HVAC Fuses Data Link Connector (DLC) Schematics G200, Page 1 of 2
Figure 2:	Compressor Controls Master Electrical Component List Air Temperature Description and Operation Air Temperature and Sunload Sensors Blower Controls Fuse Block-I/P Turn Signals,Corn Lps,Air Bag,Cluster,PCM,BCM U/H Relay Fuses,Fuse Block-U/H Crank, IGN Main Relays Fuse Block-I/P Turn Signals,Corn Lps,Air Bag,Cluster,PCM,BCM U/H Relay Fuses,Fuse Block-U/H Crank, IGN Main Relays G100, G113, and G171 G100, G113, and G171 Data Link Connector (DLC) Schematics Fuse Block-Underhood B+ Buss G100, G113, and G171 EVAP Controls and FTP Sensor Fuel Controls - EVAP and FTP G100, G113, and G171
Figure 3:	Air Temperature and Sunload Sensors Master Electrical Component List Air Temperature Description and Operation Air Delivery and Temperature Controls Compressor Controls Air Delivery and Temperature Controls Air Delivery and Temperature Controls
Figure 4:	Air Delivery/Temperature Controls Master Electrical Component List Air Temperature Description and Operation Vacuum Solenoids Air Temperature and Sunload Sensors Fuse Block-I/P LOW BLOWER, CRUISE, and HVAC Fuses Fuse Block-I/P LOW BLOWER, CRUISE, and HVAC Fuses Air Temperature and Sunload Sensors Air Temperature and Sunload Sensors
Figure 5:	Vacuum Solenoids Master Electrical Component List Air Temperature Description and Operation Air Delivery and Temperature Controls Fuse Block-I/P LOW BLOWER, CRUISE, and HVAC Fuses Fuse Block-I/P LOW BLOWER, CRUISE, and HVAC Fuses