Air Flow Control Actuator Inspection

1. Remove air flow control actuator from heater and cooling unit referring to Air Flow Control Actuator Removal and Installation  .
2. Connect air flow control actuator connector to the actuator (1).
3. Set air flow selector of HVAC control module to DEF position with ignition switch ON, and make sure if the position of actuator level is DEF (A).
4. Measure resistance between terminal "1" and "3".

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

   Approximately less than 1.2 k/ohms

   Fig 1: Checking Air Flow Control Actuator Resistance (DEF Position)

   Courtesy of SUZUKI OF AMERICA CORP.
5. Set air flow selector of HVAC control module to VENT position with ignition switch ON, and make sure if the position of actuator level is VENT (B).
6. Measure resistance between terminal "1" and "3".

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

Approximately 4.8 - 6.0 k/ohms

Fig 2: Checking Air Flow Control Actuator Resistance (VENT Position)

Courtesy of SUZUKI OF AMERICA CORP.

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