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Home >> Infiniti >> 2019 >> QX80 Luxe, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Engine Control System (DTC/Circuit Diagnosis) (3 Of 3)) >> DTC/Circuit Diagnosis >> Electrical Load Signal >> Component Function Check
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Component Function Check

WARNING: This page is about a different car, the 2019 Nissan Armada and 2018 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION 
    1. Turn ignition switch ON.
    2. Select "DATA MONITOR" mode with CONSULT.
    3. Select "LOAD SIGNAL" and check indication under the following conditions.

      Monitor item

      Condition

      Indication

      LOAD SIGNAL

      Rear window defogger switch

      ON

      ON

      OFF

      OFF

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Go to Diagnosis Procedure .

  2. CHECK LIGHTING SWITCH FUNCTION 

    Check "LOAD SIGNAL" indication under the following conditions.

    Monitor item

    Condition

    Indication

    LOAD SIGNAL

    Lighting switch

    ON at 2nd position

    ON

    OFF

    OFF

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Go to Diagnosis Procedure .

  3. CHECK HEATER FAN CONTROL SWITCH FUNCTION 

    Select "HEATER FAN SW" and check indication under the following conditions.

    Monitor item

    Condition

    Indication

    HEATER FAN SW

    Heater fan control switch

    ON

    ON

    OFF

    OFF

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Go to Diagnosis Procedure .