GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2004 🢒 Regal 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 HVAC Component Views
Figure 1:

Lower Left Side of Engine (LG8)
Object Number: 822934 Size: MF
(1)A/C Compressor Clutch
(2)Crankshaft Position (CKP) Sensor A
(3)Knock Sensor (KS) 1
(4)Engine Oil Pressure (EOP) Switch
(5)Engine Wiring Harness
(6)Starter Lead
(7)Positive Battery Cable
Figure 2:

Lower Left Side of Engine (L36/L67)
Object Number: 592170 Size: LF
(1)A/C Compressor Clutch Coil
Figure 3:

LR of the Engine Compartment
Object Number: 1095521 Size: LF
(1)P103
(2)I/P Wiring Harness
(3)Cruise Control Module (CCM) Connector
(4)Cruise Control Module (CCM) (K34)
(5)Electronic Brake Control Module (EBCM) (JL9/JM4)
(6)Electronic Brake Control Module (EBCM) Connector (JL9/JM4)
(7)Engine Wiring Harness
(8)Brake Fluid Level Switch
(9)C101
(10)A/C Refrigerant Pressure Sensor
(11)Engine Wiring Harness
(12)G171 (JL9/JM4)
Figure 4:

Behind Right Side of Instrument Panel (CJ3)
Object Number: 581254 Size: LF
(1)G200
(2)I/P Fuse Block
(3)C200
(4)Vacuum/Electric Solenoid (CJ2/CJ3)
(5)Blower Motor
(6)Blower Motor Resistor Assembly (CJ3)
(7)P100
Figure 5:

Lower Center of Instrument Panel (CJ3)
Object Number: 592176 Size: LF
(1)Heater-A/C Control Module Connector, C1
(2)Heater-A/C Control Module Connector, C2
(3)Heater-A/C Control Module