Housing Assembly HVAC: Service and Repair
HVAC MODULE ASSEMBLY REPLACEMENTREMOVAL PROCEDURE
1. Remove the LH fender diagonal brace.
2. Remove the cross vehicle brace.
3. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
4. Drain the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
5. Disconnect the A/C lines at the evaporator block fitting.
6. Disconnect the heater hoses at the heater core.
7. Remove the cross vehicle beam.
8. Disconnect the vacuum hoses from the HVAC module.
9. Disconnect the electrical connectors from the HVAC module.
10. Disconnect the IP wiring harness from the HVAC module retainers and position the IP wiring harness to the floor.
11. Remove the evaporator drain elbow.
12. Remove the HVAC module to dash nuts.
13. Perform the following steps to remove the HVAC module.
13.1. Pull the HVAC module rearward to disengage the mounting studs from the dash panel.
13.2. Position aside the dash insulator pad from the HVAC module air inlet opening.
13.3. Roll the HVAC module downward and rearward to disconnect the heater core outlet cover from the rear floor air outlet duct.
13.4. Remove the HVAC module.
14. Remove and discard all of the outer HVAC module seals (1,2,3).
INSTALLATION PROCEDURE
1. Install new outer HVAC module seals (1,2,3).
IMPORTANT: When installing the HVAC module, ensure dash insulator pad cut-outs and HVAC seals, studs, and drain align and seal properly to dash panel.
2. Perform the following steps to install the HVAC module into the vehicle.
2.1. Align the HVAC module heater core outlet cover to the rear floor air outlet duct.
2.2. Roll the HVAC module forward and upward and align the dash insulator pad to the HVAC module air inlet opening.
2.3. Align the HVAC module mounting studs and drain to seat against the dash panel.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the HVAC module to dash nuts.
Tighten
Tighten the HVAC module nuts to 10 Nm (89 lb in).
4. Install the evaporator drain elbow.
5. Position the IP wiring harness to the HVAC module and secure in the harness retainers.
6. Connect the electrical connectors to the HVAC module.
7. Connect the vacuum hoses to the HVAC module.
8. Install the cross vehicle beam.
9. Connect the heater hoses at the heater core.
10. Install the A/C lines at the evaporator block fitting.
11. Fill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
12. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
13. Leak test the A/C system. Refer to Leak Testing.
14. Install the cross vehicle brace.
15. Install the LH fender diagonal brace.