Auxiliary HVAC Module Replacement

Auxiliary HVAC Module Replacement

Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.




2. Drain the engine coolant. Refer to Cooling System Draining and Filling (Static Fill) Cooling System Draining and Filling (Vac N Fill).
3. Remove the left rear quarter trim panel.
4. Remove the left rear corner garnish molding.
5. Remove the air distribution duct upper.
6. Remove the air distribution duct lower.
7. Disconnect the electrical connectors from the auxiliary HVAC module (1).




8. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
9. Remove the cover from the underside of the auxiliary HVAC module.
10. Remove the one retaining nut in order to remove the auxiliary evaporator underbody rear tube assembly from the core.
11. Disconnect the heater lines from the underside of the auxiliary HVAC module.
12. Remove the retaining nuts from the underside of the auxiliary HVAC module.
13. Lower the vehicle.
14. Remove the auxiliary HVAC module.

Installation Procedure




1. Install the auxiliary HVAC module.
2. Raise and suitably support the vehicle. Refer to Vehicle Lifting.

Notice: Refer to Fastener Notice.

3. Install the retaining nuts to the underside of the auxiliary HVAC module.

Tighten the auxiliary heater retaining nuts to 10 N.m (89 lb in).

4. Connect the heater lines to the underside of the auxiliary heater.
5. Install the one retaining nut to the auxiliary evaporator underbody rear tube assembly to the core.

Tighten the nut to 28 N.m (21 lb ft).

6. Install the cover to the underside of the auxiliary HVAC module.
7. Lower the vehicle.




8. Connect the electrical connectors to the auxiliary HVAC module (1).
9. Install the air distribution duct upper.
10. Install the air distribution duct lower.
11. Install the left rear corner garnish molding.
12. Install the left rear quarter trim panel.
13. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
14. Fill the engine coolant. Refer to Cooling System Draining and Filling (Static Fill) Cooling System Draining and Filling (Vac N Fill).