Air Flow Control Actuator Inspection

1. Remove air flow control actuator from heater unit referring to AIR FLOW CONTROL ACTUATOR REMOVAL AND INSTALLATION .
2. Connect actuator connector to the actuator (1).
   Fig 1: Connecting Actuator Connector To Actuator

   Courtesy of SUZUKI OF AMERICA CORP.
3. Set air flow selector of HVAC control module to DEF position with ignition switch ON, and make sure if the position of actuator lever is DEF position (A).
4. Turn ignition switch OFF, and then disconnect connector from air flow control actuator.
5. Measure resistance between terminal "1" and "3".

   Air flow control actuator resistance between terminal "1" and "3" (DEF position) 

   Approximately 4.9 kΩ 

   Fig 2: Measuring Resistance Between Terminal "1" And "3"

   Courtesy of SUZUKI OF AMERICA CORP.
6. Connect connector to air flow control actuator.
7. Set air flow selector of HVAC control module to VENT position with ignition switch ON, and make sure if the position of actuator lever is VENT position (B).
8. Turn ignition switch OFF, and then disconnect connector from air flow control actuator.
9. Measure resistance between terminal "1" and "3".

   Air flow control actuator resistance between terminal "1" and "3" (VENT position) 

   Approximately 1.0 kΩ 

   Fig 3: Measuring Resistance Between Terminal "1" And "3"

   Courtesy of SUZUKI OF AMERICA CORP.

If check result is not satisfactory, replace the actuator with new one.