1. Disconnect the ground cable from battery.
2. Using the refrigerant recovery system, drain the refrigerant. 
3. Drain coolant from the radiator.
4. Remove the bolts securing expansion valve and pipe in engine compartment. Release the heater hose clamps in engine compartment to remove the hoses.
• LHD model
• RHD model
5. Remove the instrument panel.
6. Remove the blower motor unit assembly.
7. Disconnect the connectors of the actuator, thermo sensor, blower resister, and power transistor.
8. Remove the bolt and nuts and remove the heater and cooling unit.
