GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2004 🢒 H2 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 HVAC Component Views
Figure 1:

RR of the Engine Compartment
Object Number: 828796 Size: LF
(1)A/C Low Pressure Switch
(2)A/C Accumulator
(3)Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor
(4)Coolant Level Switch (If Equipped)
Figure 2:

Lower Right Side of Engine
Object Number: 1226087 Size: MF
(1)A/C Condenser
(2)A/C Refrigerant Pressure Sensor
(3)A/C Condenser Hose
(4)A/C Compressor Clutch Connector
(5)A/C Compressor
Figure 3:

HVAC Subsystem Components 1 of 2
Object Number: 1228279 Size: LF
(1)Air Temperature Sensor - Inside
(2)Cellular Telephone Microphone
(3)Ambient Light/Sunload Sensor Assembly
(4)I/P Harness
(5)Air Temperature Sensor Connector - Upper Right
(6)Air Temperature Sensor - Upper Right
(7)Air Temperature Sensor - Upper Left
(8)Forward Lamp Harness
(9)Radiator Support
(10)Ambient Air Temperature Sensor - HVAC
(11)Ambient Air Temperature Sensor - Mirror
Figure 4:

HVAC Subsystem Components - 2 of 2
Object Number: 827941 Size: LF
(1)HVAC Control Module
(2)HVAC Control Module
(3)HVAC Harness
(4)Air Temperature Actuator-Left
(5)Air Temperature Sensor Connector-Lower Right
(6)Air Temperature Sensor Connector-Lower Left
(7)Mode Actuator
(8)Recirculation Actuator
(9)Blower Motor Control Processor
(10)HVAC Module
(11)Air Temperature Actuator-Right
Figure 5:

HVAC Control Module
Object Number: 819865 Size: MF
(1)Radio
(2)HVAC Control Module
(3)HVAC Control Module-C1
(4)HVAC Control Module-C2
(5)Radio-C3-Not Used
(6)Radio-C1
(7)Radio-C2