HVAC Module - Auxiliary

HVAC MODULE REPLACEMENT - AUXILIARY

TOOLS REQUIRED
J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Drain the cooling system. Refer to Draining and Filling Cooling System (LL8) Draining and Filling Cooling System (LH6, LS2).
3. Raise and support the vehicle. Refer to Vehicle Lifting.




4. Remove the nuts (3) from rear A/C line block fittings.
5. Remove the A/C line block fittings and discard the O-ring seals.

IMPORTANT: Cap or tape the open A/C refrigerant lines immediately.




6. Remove the heater hoses from the HVAC module-auxiliary.
7. Remove the nuts from the HVAC module studs.
8. Lower the vehicle.
9. Remove the right side rear quarter trim.




10. Disconnect the electrical connectors from the HVAC module.
11. Disconnect the rear compartment air outlet ducts (5) from the HVAC module (3).




12. Remove the mounting bolts (5) from the HVAC module.
13. Remove the HVAC module (1).
14. Remove and discard the HVAC module pass through seal.

INSTALLATION PROCEDURE
1. Install new HVAC module pass through seal.




2. Install the HVAC module (1).
3. Install the HVAC module mounting bolts (5).

Tighten the bolts to 10 N.m (89 lb in).

NOTE: Refer to Fastener Notice.




4. Install the air outlet ducts (5).
5. Connect the electrical connectors.
6. Install the right side rear quarter trim panel.
7. Raise and support the vehicle.




8. Connect the heater hoses to the heater core.
9. Remove the cap or tape from the A/C lines.
10. Install the new O-ring seals.




11. Install the nuts (3) to the evaporator core studs.

Tighten the nuts to 20 N.m (15 lb ft).

12. Lower the vehicle.
13. Fill the cooling system. Refer to Draining and Filling Cooling System (LL8) Draining and Filling Cooling System (LH6, LS2).
14. Evacuate and charge the system. Refer to Refrigerant Recovery and Recharging.
15. Leak test the fittings of the components using the J 39400-A.