HVAC Occupant Climate Control (Auto A/C) – Removal and Installation Page 2E–1
Page 2E–1
Section 2E
HVAC Occupant Climate Control (Auto A/C)
– Removal and Installation
ATTENTION
Before performing any Service Operation or other procedure described in this Section, refer to Section 00
Warnings, Cautions and Notes for correct workshop practices with regard to safety and/or property damage.
1 General Information............................................................................................................................... 2
2 Service Operations................................................................................................................................3
2.1 OCC Control Module..............................................................................................................................................3
Remove and Install.................................................................................................................................................3
2.2 Occupant Climate Control (Auto A/C) HVAC unit................................................................................................4
Remove and Install.................................................................................................................................................4
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HVAC Occupant Climate Control (Auto A/C) – Removal and Installation Page 2E–2
Page 2E–2
1 General Information
The basic HVAC system as fitted to MY 2004 AWD Wagon vehicles is carried over from previously released MY 2003
VY Series vehicles. All models are fitted with the HVAC Occupant Climate Control (Auto A/C) air conditioning system
which is identical to that fitted to high level VY Series models.
For information regarding the removal and installation of heating, ventilation and air conditioning system components
which are common to both manual A/C and OCC (Auto A/C) type systems (e.g. ventilation outlets, ducting, piping, hoses,
condenser, filter drier receiver, compressor, evaporator, heater core, blower fan, cooling fans and water valve), refer to
Section 2B HVAC Climate Control (Manual A/C) – Removal and Installation in the MY 2003 VY and V2 Series Service
Information.
Where inclinometer gauges are fitted to the top of the centre trim assembly on MY 2004 AWD Wagon vehicles, additional
information for the removal and installation of the OCC control module applies. A reference detailing this information is
provided in this Section.
For information regarding the removal and installation of heating, ventilation and air conditioning system components
which are specific to OCC (Auto A/C) type systems, refer to Section 2E HVAC Occupant Climate Control (Auto A/C) –
Removal and Installation in the MY 2003 VY and V2 Series Service Information.
If removal of the HVAC unit is required, refer to Section 2B, 3 Heating, Ventilation and Air Conditioning (HVAC) Unit in
the MY 2003 VY and V2 Series Service Information noting that, as stated above, the instrument panel centre trim
removal procedure is different where inclinometer gauges are fitted to top of the centre trim assembly. The information
provided in Section 2B, 3 Heating, Ventilation and Air Conditioning (HVAC) Unit is applicable to both manual A/C and
OCC (Auto A/C) type systems.
HVAC Occupant Climate Control (Auto A/C) – Removal and Installation Page 2E–3
Page 2E–3
2 Service Operations
IMPORTANT
All fasteners are important attaching parts as they affect the performance of vital components and / or could
result in major repair expense. Where specified in this section, fasteners MUST be replaced with parts of the
same part number or a GM approved equivalent. Do not use fasteners of an inferior quality or substitute
design.
Torque values must be used as specified during reassembly to ensure proper retention of all components.
Throughout this section, fastener torque wrench specifications may be accompanied with the following
identification marks:
!
!!
! Fasteners must be replaced after loosening.
"
""
" Vehicle must be at kerb height before final tightening.
#
##
# Fasteners either have micro encapsulated sealant applied or incorporate a mechanical thread lock and
should only be re-used once. If in doubt, replacement is recommended.
If one of these identification marks is present alongside a fastener torque wrench specification, the
recommendation regarding that fastener must be adhered to.
2.1 OCC Control Module
LT Section – 08-155A
Remove and I nstall
To remove and install the OCC control module, refer to Section 2E, 2.1 OCC Control Module in the MY 2003 VY and
V2 Series Service Information. Where inclinometer gauges are fitted to the top of the centre trim assembly, refer also to
Section 1A3, 2.1 Inclinometer Assembly prior to removal of the centre trim assembly.
HVAC Occupant Climate Control (Auto A/C) – Removal and Installation Page 2E–4
Page 2E–4
2.2 Occupant Climate Control (Auto A/C)
HVAC Unit
LT Section – 08-150
Remove and I nstall
To remove and install the Occupant Climate Control (Auto A/C) HVAC unit, refer to Section 2B, 3 Heating, Ventilat ion
and Air Conditioning (HVAC) Unit in the MY 2003 VY and V2 series Service Information. Where inclinometer gauges are
fitted to the top of the centre trim assembly, refer also to Section 1A3, 2.1 Inclinometer Assembly prior to removal of the
centre trim assembly.