C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
INSTALLATION PROCEDURE
1. Install the auxiliary HVAC module assembly (4) to the vehicle.
2. Install the two bolts (3) inside the vehicle in order to retain the auxiliary HVAC module to the vehicle.
3. Install the upper auxiliary air duct (1) to the air distributor duct. Install the fastener (5).
4. Connect the electrical connectors to the auxiliary HVAC module.
5. Install the electronic suspension control module.
6. Install the right rear quarter trim panel.
7. Raise the vehicle.
8. Install the nuts (2) that secure the auxiliary HVAC module to the vehicle.