Housing Assembly HVAC: Service and Repair

Air Conditioning and Heater Module Assembly Replacement

Removal Procedure

1. Remove the air conditioner (A/C) lines from the thermal expansion valve. Refer to Air Conditioning Evaporator Thermal Expansion Valve Replacement Service and Repair.
2. Remove the heater hose from the heater core. Refer to Heater Inlet Hose Replacement (LY7) Service and RepairHeater Inlet Hose Replacement (LZE, LZ4, LZ9) Service and Repair and Heater Outlet Hose Replacement (LY7).
3. Remove the instrument panel (I/P) assembly. Refer to Instrument Panel Assembly Replacement Instrument Panel Assembly Replacement.
4. Remove the recirculation actuator wire harness connector.
5. Remove the air temperature actuator wire harness connector.
6. Remove the mode actuator wire harness connector.
7. Remove the blower motor wire harness connector.
8. Remove the blower motor resistor wire harness connector.




9. Remove the left hand side window defogger outlet duct.




10. Remove the HVAC module assembly mounting bolts.




11. Remove the HVAC module assembly.

Installation Procedure




1. Install the HVAC module assembly.





Caution: Refer to Fastener Caution Fastener Caution.

2. Install the HVAC module assembly mounting bolts.

Tighten the bolts to 5 Nm (44 lb in).

3. Install the left hand side window defogger outlet duct.




4. Install the blower motor resistor wire harness connector.
5. Install the blower motor wire harness connector.
6. Install the mode actuator wire harness connector.
7. Install the air temperature actuator wire harness connector.
8. Install the recirculation actuator wire harness connector.
9. Install the I/P assembly. Refer to Instrument Panel Assembly Replacement Instrument Panel Assembly Replacement.
10. Install the heater hoses to the heater core. Refer to Heater Inlet Hose Replacement (LY7) Service and RepairHeater Inlet Hose Replacement (LZE, LZ4, LZ9) Service and Repair and Heater Outlet Hose Replacement (LY7).
11. Install the A/C lines to the thermal expansion valve. Refer to Air Conditioning Evaporator Thermal Expansion Valve Replacement Service and Repair.