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Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Control System - Auto A/C >> Front Airflow Mode Actuator Inspection

Front Airflow Mode Actuator Inspection

  1. Disconnect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Remove the following parts:
    1. Selector lever knob (Refer to AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION .)
    2. Shift panel (Refer to SHIFT PANEL REMOVAL/INSTALLATION .)
    3. Console side panel (Refer to CONSOLE SIDE PANEL REMOVAL/INSTALLATION .)
    4. Front console (Refer to FRONT CONSOLE REMOVAL/INSTALLATION .)
    5. Glove compartment (Refer to GLOVE COMPARTMENT REMOVAL/INSTALLATION .)
    6. Dashboard under cover (Refer to DASHBOARD UNDER COVER REMOVAL/INSTALLATION .)
    7. Passenger-side decoration panel (Refer to DECORATION PANEL REMOVAL/INSTALLATION .)
    8. Front scuff plate (Refer to FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
    9. Front side trim (Refer to FRONT SIDE TRIM REMOVAL/INSTALLATION .)
    10. Hood release lever (Refer to HOOD RELEASE LEVER AND RELEASE CABLE REMOVAL/INSTALLATION .)
    11. Fuel-filler lid opener lever (Refer to FUEL-FILLER LID OPENER AND LEVER REMOVAL/INSTALLATION .)
    12. Driver-side lower panel (Refer to DRIVER-SIDE LOWER PANEL REMOVAL/INSTALLATION .)
    13. Passenger-side lower panel (Refer to PASSENGER-SIDE LOWER PANEL REMOVAL/INSTALLATION .)
    14. Passenger-side front heat duct (Refer to FRONT HEAT DUCT REMOVAL/INSTALLATION .)
  3. Remove the front airflow mode actuator. (Refer to FRONT AIRFLOW MODE ACTUATOR REMOVAL .)
  4. Apply battery positive voltage and connect the ground to the front airflow mode actuator terminals as indicated in the table below and verify the operation condition.
    B+ Terminal Ground Terminal Operation
    D E VENT → DEFROSTER
    E D DEFROSTER → VENT
    Fig 1: Connecting Ground To Front Airflow Mode Actuator Terminals
    G10948505Courtesy of MAZDA MOTORS CORP.
  5. Verify that the resistance between terminals A and B, B and C matches the front airflow mode actuator operation as shown in the graph.
    Fig 2: Front Airflow Mode Actuator Terminals Resistance Graph
    G10948506Courtesy of MAZDA MOTORS CORP.