HVAC Component Views

WARNING: This page is about a different car, the 1999 GMC Sierra and 1999 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: A/C Refrigerant Pressure Sensor Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Radiator Core Support
2	A/C Compressor and Condenser Hose
3	Headlamp Support
4	A/C Automatic Recirculating Switch
5	A/C Automatic Recirculating Switch Electrical Connector

Fig 2: HVAC Control Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Instrument Panel
2	HVAC Control Module

Fig 3: HVAC Module Assembly (Connections) Harness Routing View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Recirculation Door Motor Electrical Connector
2	Instrument Panel
3	Electrical Harness Connector
4	Ground 200 (G200)
5	Blower Motor Resistor/Relay Assembly
6	Blower Motor Resistor/Relay Electrical Connector
7	Harness Inline Connector (C296)
8	Temperature Door Motor Electrical Connector
9	Temperature Door Motor
10	Mode Door Motor

Fig 4: HVAC Module Assembly

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Recirculation Door Motor
1	Recirculation Door Motor
2	Mode Door
2	Mode Door
3	Mode Door Motor
3	Mode Door Motor
4	Temp Door Motor
4	Temp Door Motor
5	Blower Motor Resistor/Relay Assembly
6	Blower Motor

Fig 5: HVAC Module Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Heater Core Cover
2	Heater Core
3	A/C Defroster Seal
4	Upper HVAC Module Case
5	Dash Seal
6	A/C Valve
7	Heater/Defroster Valve
8	Temperature Valve
9	A/C Valve Lever
10	Mode Valve Actuator
11	Heater/Defroster Valve Lever
12	Mode Valve Cam
13	Lower HVAC Module Case
14	Rear Heater Duct Seal
15	Temperature Valve Actuator Screw
16	Temperature Valve Actuator
17	HVAC Module Wiring Harness
18	Blower Motor Resistor/Relay Assembly
19	Blower Motor Acoustic Insulator
20	Blower Motor
21	Blower Motor Fan
22	Passenger Compartment Air Filter Access Door
23	Dash Seal
24	Evaporator Block Seal
25	Evaporator Core
26	Passenger Compartment Air Filters
27	Air Inlet Valve
28	Air Inlet Housing
29	Air Inlet Housing Seal
30	Air Inlet Actuator
31	Heater Core Pipe Seal

Fig 6: A/C Compressor Clutch Component View - 4.3L

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	A/C Compressor Electrical Connector
2	A/C Compressor
3	EGR Electrical Connector
4	A/C Compressor High Pressure Cutout Switch

Fig 7: A/C Compressor Clutch Component View - 4.8L, 5.3L, 6.0L

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	A/C Compressor
1	A/C Compressor
2	A/C Compressor Electrical Connector
3	A/C Compressor High Pressure Cutout Switch Connector
3	A/C Compressor High Pressure Cutout Switch Connector
4	A/C Compressor High Pressure Cutout Switch
5	Engine Oil Level Switch
6	Starter
7	Crankshaft Position (CKP) Sensor
8	Starter Solenoid Electrical Connector

Fig 8: A/C Low Pressure Switch and A/C Accumulator

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Auxiliary Battery Relay
2	A/C Accumulator
3	A/C Compressor Low Pressure Cycling Switch
4	Inner Wheel Well
5	Engine Coolant Level Switch Electrical Connector
6	Mass Air Flow (MAF) Sensor
7	Air Cleaner Assembly
8	Engine Coolant Recovery Reservoir
9	Auxiliary Battery Relay Electrical Connector