Disconnect negative battery cable. Remove glove box and right side sound insulator. Disconnect cables at module. Remove control panel trim plate, control panel screws and pull control out.
Disconnect cables from control panel and remove cables. Disconnect electrical connection at control. Disconnect electrical connection at right side near cowl area.
Remove tape from main harness and disconnect. Remove left side sound insulator (if not already done). Disconnect heater harness from main harness power source connection. Remove harness. To install, reverse removal procedure.