1. Disconnect the air mix control cable and the mode control cable from the heater unit (see page 21-20).
2. Remove the front console panel (see section 20)
3. Remove the four self-tapping screws then pull out the heater control panel. Disconnect the connectors.
4. Install in the reverse order of removal, and adjust the mode control cable and air mix control cable at the heater unit (see page 21-20). If necessary, adjust the heater valve cable (see page 21-20).