HVAC Component Views

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Ambient Air Temperature Sensors

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Radiator Core Support
2	Ambient Air Temperature Sensor (DF5)
3	Ambient Air Temperature Sensor - HVAC (CJ2)

Fig 2: Left Front of Engine Compartment (Diesel)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Engine
2	Front Fascia
3	A/C Low Pressure Switch (C67/CJ2)
4	Surge Tank
5	Engine Coolant Level Switch

Fig 3: Front of Engine Compartment (4.3L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Battery Current Sensor
2	Mega Fuse
3	A/C Low Pressure Switch (C67/CJ2)
4	Fuse Block - Underhood
5	Engine Control Module (ECM)
6	A/C Refrigerant Pressure Sensor (C67/CJ2)
7	Mass Airflow (MAF)/Intake Air Temperature (IAT) Sensor
8	Battery - Right

Fig 4: Top of Engine Diesel

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Turbocharger Vane Position Control Solenoid Valve
2	Glow Plug Control Module (GPCM)
3	Fuel Rail Temperature (FRT) Sensor
4	Intake Air Temperature (IAT) Sensor 2 Connector
5	Fuel Pressure Regulator Connector
6	A/C Refrigerant Pressure Sensor (C67/CJ2)
7	Generator - Left (K76)
8	A/C Compressor Clutch (C67/CJ2)
9	Engine Coolant Temperature (ECT) Sensor 1
10	Engine Coolant Temperature (ECT) Sensor 2
11	Camshaft Position (CMP) Sensor
12	X127
13	Generator - Right
14	Manifold Absolute Pressure (MAP) Sensor
15	Intake Air Heater (IAH) Module
16	Intake Air Temperature (IAT) Sensor 2
17	Fuel Heater
18	A/C Low Pressure Switch (C67/CJ2)

Fig 5: Left Side of Engine (4.3L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Generator
2	Throttle Body
3	Transmission
4	Park/Neutral Position (PNP) Switch
5	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
6	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
7	Knock Sensor (KS) - 1
8	Engine Coolant Temperature (ECT) Sensor
9	A/C Compressor Clutch (C67/CJ2)

Fig 6: Right Rear of the Engine Compartment (Gas -4.3L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Battery - Right
2	A/C Low Pressure Switch (C67/CJ2)
3	A/C Compressor Clutch (C67/CJ2)
4	A/C Refrigerant Pressure Sensor (C67/CJ2)
5	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor

Fig 7: Front Headliner Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Inside Air Temperature Sensor - Front (CJ2)
2	Cellular Microphone (UE1/U3U/UVB)
3	Courtesy/Reading Lamps - Rear (Extended Cab/Crew Cab)
4	Sunroof Switch (CF5)
5	Sunshade - Right (DH6)
6	Garage Door Opener (UG1)
7	Onstar Button Assembly
8	Inside Rearview Mirror (ISRVM)
9	Courtesy/Reading Lamps - Front
10	Windshield
11	Sunshade - Left (DH6)

Fig 8: Front of the I/P -YE9

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Driver Information (DIC) Switch
2	Instrument Panel Cluster (IPC)
3	Radio
4	Ambient Light/Sunload Sensor Assembly (CJ2) / Ambient Light Sensor (C67/C42)
5	HVAC Control Module
6	Inflatable Restraint I/P Module Disable Switch (C99)
7	Power Take-Off (PTO) Switch
8	Auxiliary Power Outlet - Front 2
9	I/P Multifunction Switch Assembly
10	Auxiliary Power Outlet - Front 1
11	Transfer Case Shift Control Switch (NQF/NQH)
12	Trailer Brake Control Panel Switch (JL1)
13	Headlamp and Panel Dimmer Switch

Fig 9: Front of the I/P +YE9

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Instrument Panel Cluster (IPC)
2	Inflatable Restraint Steering Wheel Module
3	Shift Control Lever
4	Ambient Light/Sunload Sensor Assembly (CJ2)/Ambient Light Sensor (C67/C42)
5	Speaker - Center (UQA +Y91)
6	Radio
7	Inflatable Restraint I/P Module
8	I/P Compartment Lamp
9	HVAC Control Module
10	Auxiliary Power Outlet - Front 2
11	I/P Multifunction Switch Assembly
12	Auxiliary Power Outlet - Front 1
13	Driver Information Center (DIC) Switch
14	Steering Wheel Control Switch Assembly - Right (UK3)
15	Steering Wheel Control Switch Assembly - Left (K34/KA9)
16	Trailer Brake Control Panel Switch (JL1)
17	Headlamp and Panel Dimmer Switch
18	Dimmer Control
19	Transfer Case Shift Control Switch (NQF/NQH)
20	Turn Signal Multifunction Switch

Fig 10: Upper Front Air Temperature Sensors (CJ2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Air Temperature Sensor - Upper Left
2	Air Temperature Sensor - Upper Right

Fig 11: HVAC Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Air Temperature Actuator - Right
2	Recirculation Actuator
3	Junction Block - Right I/P C4
4	G200
5	Blower Motor
6	Air Temperature Sensor - Lower Right
7	Air Temperature Actuator - Left
8	Blower Motor Control Module
9	Air Temperature Sensor - Lower Left
10	Mode Actuator