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Home >> Subaru >> 2013 >> Legacy Premium, Automatic CVT Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System (Heater, Ventilator And A/C) >> Mode Door Actuator >> Inspection >> Check Actuator Operation

Check Actuator Operation

Preparation tool: 

Circuit tester 

  1. Check the actuator operation when battery voltage is applied between the terminals of mode door actuator.
    CAUTION: Disconnect the battery immediately after the actuator stops operation. Otherwise, the motor may be damaged.
    Terminal No. Inspection conditions Operating position Connection diagram
    4 (+) - 5 (-) Connect battery to the terminals FACE
    G08348749
    5 (+) - 4 (-) DEF
    G08348750
  2. Check the resistance between terminals of the mode door actuator.
    Terminal No. Inspection conditions Standard Connection diagram
    1 - 2 Always 4.2 - 7.8 Ω
    G08348751
  3. Connect the mode door actuator connector, turn the ignition switch to ON and check the voltage between terminals of the mode door actuator.
    Terminal No. Inspection conditions Standard Connection diagram
    3 (+) - 2 (-) FACE Approx. 4.0 V
    G08348752
    DEF Approx. 1.0 V
  4. Replace the mode door actuator if it is found defective.