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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Control System [HVAC - Full Auto Air Conditioner) >> Airflow Mode Actuator Inspection [Full-Auto Air Conditioner]

Airflow Mode Actuator Inspection [Full-Auto Air Conditioner]

CAUTION:
  • If the lever position exceeds the operation range shown in the figure, the circuit in the actuator could be damaged. Always perform an actuator operation inspection with the lever movement within the range shown in the figure.
  1. Connect battery positive voltage to airflow mode actuator terminal D (or F), connect terminal F (or D) to ground, and then verify that the airflow mode actuator operates as shown in the table.
    • If the operation condition is not normal, replace the airflow mode actuator.
    Fig 1: Inspecting Airflow Mode Actuator - Full-Auto Air Conditioner
    G08150941
    Terminal Airflow mode actuator operation
    D F
    B+ Ground VENT โ†’ DEFROSTER
    Ground B+ DEFROSTER โ†’ VENT
  2. Verify that the resistance between terminals A and C, and C and B matches the airflow mode actuator operation as shown in the graph.
    • If the operation condition and resistance are not normal, replace the airflow mode actuator.
    Fig 2: Airflow Mode Actuator Position Resistance Graph
    G08150942