No.3 Airflow Mode Does Not Change: Notes

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

AIRFLOW MODE DOES NOT CHANGE - DESCRIPTION & POSSIBLE CAUSE

3	Airflow mode does not change.
DESCRIPTION	Malfunction in heater unit and/or climate control unit airflow system.
POSSIBLE CAUSE	Heater unit airflow mode link, airflow mode crank, airflow mode rod, airflow mode wire, wire clamp malfunction (Steps 1,2) Malfunction in climate control unit bevel gear set (2), airflow mode wire or wire clamp (Step 3) Malfunction in one or more heater unit door(s) (Steps 4,5)